Mathieu Lupien

"À la famille de Mathieu et à ses proches, je tiens à vous offrir mes plus sincères condoléances.
Mathieu nous a quitté beaucoup trop tôt, et laisse un vide immense. Pour moi, il était non seulement un entrepreneur talentueux, mais un ami précieux, profondément humain, sur qui je pouvais toujours compter. J’aimais son humour discret, sa lucidité sans jugement et sa façon de toujours pousser les autres vers le haut.
Repose en paix, Mathieu. Tu vas énormément me manquer."

"nos plus sinceres condoleances a la famille et ses proches,,,Huguette ,Fernand"

"Au revoir Mathieu,

Tu étais un être humain profondément inspirant, un leader silencieux qui guidait par ses valeurs, sa bienveillance et son calme exemplaire.

Par ton exemple et tes paroles toujours justes, tu as marqué les gens autour de toi et laissé une empreinte précieuse dans nos vies.

Tu avais ce talent rare de tout faire avec passion et justesse. Même les choses simples, comme faire du pain, devenaient entre tes mains quelque chose de remarquable.

Tu étais pour nous une personne exceptionnelle, profondément humaine, et un père de famille admirable.

Avec toute notre gratitude et notre amour, nous te porterons toujours dans nos cœurs.

Geneviève, Éloi et Henri"

"I met Mathieu at a few CPA events - he struck me as someone with a sweet soul, great leader and inspirational. From time to time when I would bump into him, I always enjoyed our conversations. I was, and still am in shock to find out he has left us. God always takes the good ones. He will truly be missed.
To his wife and family, May you always cherish memories of this beautiful soul - he was truly one of a kind."

"My deepest condolences to Matt's family and friends.
I so enjoyed working with Matt during his time at LG-Nortel in Seoul. He was always friendly, positive and ready to partner to 'make it happen'. He will be missed by all who had the privilege of knowing him."

"Toutes pensées les plus empreintes d’Amour et de Compassion sont dirigées vers Nathalie, Malena, Amélie et Yuna !
Mathieu nous manquera à tous mais sa bonté et sa grandeur demeureront pour toujours, gravé profondément dans nos Cœurs !
LP"

"My deepest condolences to the Lupien family. I worked with Mathieu during his time in South Korea. He was very professional, kind, and guided me thru several obstacles at work. He will be greatly missed."

"I knew Matt through his volunteer activities at AICPA. He was so passionate and committed to the success of the CITP Credential and the profession as a whole. Matt was also a committed friend and his absence will be sorely missed. His is truly a life to be celebrated."

"Je suis triste d’apprendre cette nouvelle. Mes sympathies Nathalie, à tes filles ainsi qu’à toute la famille. Je suis en pensée avec vous."

"Mathieu n’était pas seulement un talentueux collègue mais c’était aussi un camarade toujours là et si drôle.

Très chère Nathalie, mes plus sincères condoléances pour toi et les enfants. Mathieu repose en paix 🙏."

"When we worked together, he was my CFO and I was a senior analyst. He saw leadership potential in me before I fully saw it in myself, and he made me believe that one day I could become a leader. His mentorship and coaching had a profound impact on my career and on the professional I’ve become. After we both left the company, we stayed connected and our relationship grew into a true friendship. Our Vietnamese soup lunches every couple of months, where we would talk about everything and anything, are memories I will always cherish. He was an extraordinary man. A leader with vision, positivity, and immense generosity. I still cannot believe he is gone. My deepest condolences to his family and friends. He will be greatly missed."

"J'ai eu la grande opportunité de travailler et côtoyer Mathieu chez Nortel. J'en garde une excellent souvenir et je suis attristé d'apprendre le depart de Mathieu. C'est un collègue avec de grandes qualités humaines et professionnelles que je me sens privilégié d'avoir eu la chance de connaitre. Mes sincères condoléances a ses proches, ses amis, ses collègues!

Alexandre Lefort"

"J'ai eu le privilège d'être l'adjointe de Mathieu et de le côtoyer chaque jour chez CSL. Chaleureux, calme et posé, Mathieu veillait sur son équipe et permettait à chacun de progresser dans son cheminement. Mes plus sincères condoléances à toute la famille; un homme de grande valeur est parti beaucoup trop tôt mais son souvenir restera."

"Mes plus sincères condoléances à la famille de Mathieu ainsi qu’à tous ceux qui sont affectés par son départ. Mathieu était quelqu’un avec qui il était facile de connecter et d’avoir des discussions et projets enrichissants. Une grande perte et une grande tristesse d’apprendre son départ."

"My sincere condolences to his family. Mathieu will truly be missed."

"Condolences to Mathieu's family! I worked with Mathieu at Ericsson South Korea for 2.5 years and came to know him to be an outstanding citizen dedicated to his work and family! May his soul rest in peace and god bless his family!"

"I would like to add that Mathieu had the highest degree of integrity - among the highest of all those I have worked with. Prayers for his family."

"Mes plus sincères condoléances à toute la famille et à ses proches."

"Such sad news. Matt was an absolute gem of a human being. He was one of the first people I met at the University of Ottawa. Shannon O'Rourke, Matt and I were like the three musketeers when we moved to Toronto after graduation, and I will cherish the memories. Sincere condolences to his family."

"A wonderful leader and a lifelong friend, Mathieu stayed close to us long after leaving LG-Nortel/Ericsson. Though he will be missed, the memory of his warm smile stays with us all.."

"Quand je pense à Mathieu…
Je pense à sa gentillesse et à son sourire rayonnant. Je me rappelle d’un mari aimant, attentionné, calme et un papa exceptionnel. Toujours prêt à conseiller, à écouter, à trouver des solutions, à apprendre et surtout à cuisiner des plats exquis. J’ai toujours admiré son sens de l’aventure, sa curiosité et son engagement inconditionnel.
Pour tes filles, tu resteras à jamais un modèle de détermination et pour ma grande amie Nathalie, un pilier de force et d’inspiration. Ta bienveillance et ta bonté continueront à vivre à travers elles. Repose en paix mon cher ami 🙏🏻"

"Cette nouvelle m'attriste énormément. Mathieu était tout simplement une personne formidable, très sympathique avec une belle personnalité. Repose en paix cher Mathieu... Mes sympathies à toute sa famille, une belle étoile s'en est allée..."

"Mathieu était une personne exceptionnelle. Bien sûr, il était doté d’une grande intelligence, remarquable et naturelle, mais elle n’était jamais ce qui le définissait le plus à mes yeux.

Il était profondément dévoué à sa famille. Chaque conversation, sans exception, finissait par être marquée d’anecdotes, de souvenirs ou de moments partagés avec les siens. On sentait à quel point ils occupaient une place importante/centrale dans sa vie.

Mathieu était aussi d’une grande générosité. Toujours disponible pour aider, échanger, réfléchir ensemble, et surtout pour résoudre des problèmes. J’ai énormément apprécié nos longues discussions, qu’elles portent sur les technologies à déployer, autant en entreprise qu’à la maison, ou sur le monde en général. Ces échanges étaient toujours stimulants, réfléchis avec une note de curiosité.

C’était une personne fondamentalement positive. Je ne l’ai jamais entendu dire du mal de qui que ce soit. On pouvait parfois deviner ses réserves et sentiments, mais jamais il n’avait besoin de les exprimer négativement. Pour moi, Il incarnait une forme de bienveillance rare, calme et sincère.

Mathieu laisse une empreinte profonde : humaine, intelligente et lumineuse."

"Quelle triste nouvelle. Toutes mes condoléances à la famille, amis et collègues. Bon courage."

"Mathieu served as CFO and oversaw the IT department at CSL from 2014 to 2016.
During his time with us, he made a lasting impression, not only through his leadership and commitment to innovation, but also through his warm, outgoing personality.
Warm, gregarious, and always quick with a smile, he brought energy and openness to every room he entered.
He had a knack for bringing people together, championing new ideas, and encouraging others to think boldly.
Mathieu’s passion for innovation continued after he left CSL to found Simfiny Solutions Inc., where he dedicated himself to transforming financial reporting through cutting-edge software.
Even after pursuing new ventures, he remained in close contact with many at CSL, a testament to the true friendships he built and the deep affection many he inspired.
We extend our deepest condolences to Mathieu’s family, friends, and colleagues during this difficult time.
He will be deeply missed and fondly remembered by all of us who had the privilege of knowing him.
CSL Team"

"I am still in shock and struggling to find the right words. I can’t imagine how heartbreaking this is for the family and everyone who loved him. Matt was not only a dear friend, but also a mentor who played a pivotal role in my professional journey. I am where I am today thanks to his guidance and support, for which I will always be deeply grateful. He was an extraordinary person and a true inspiration. My heartfelt condolences to the family."

"Mathieu,

Nous avons eu le privilège de t’avoir, trop brièvement, dans nos vies via ma tendre amie Nathalie. Tu étais un homme généreux, passionné et profondément humain qui ne comptais pas son temps pour aider les autres. Tu laisses derrière toi un bel héritage de valeurs.
Tu resteras à jamais dans nos cœurs et saches que nous prendrons soin des 4 femmes de ta vie. Repose en paix 🕊️"

"He was very generous. I was grateful to receive his generous and gentle leadership while at Nortel. All my condolences to you and your loved ones."

"Quel choc d’apprendre le décès de Mathieu que j’ai apprécié chez Alithya et plus particulièrement parce qu’il avait le même âge que mon fils aîné. C’est devenu notre « running gag ».
J’avais repris contact en 2022 dans le cadre de Simplify
Mes plus sincères condoléances à toute la famille incluant ses enfants dont je garde un vif souvenir"

"C'est avec tristesse que j'ai appris le décès de Mathieu. Il y a un peu plus de deux ans, nous nous étions rencontré au marriage de Louise et Réjean. Nous étions assis à la même table et nous avions eu la chance de faire connaissance. Ainsi nous avions découvert que nous avions des intérêts communs et ce fut une rencontre très agréable. Mes pensés sont avec Mariette, Sarto et toute la famille Lupien."

"Un chic type, Mathieu. Mes condoléances à tout ceux qui ont eu la grande chance de le connaître, et courage à ses proches en ce moment difficile."

"I was very saddened to hear the loss of Mathieu. I so enjoyed working with him at Nortel.
all of my condolences to the family."

"Tellement triste… Mes plus sincères condoléances à toute la famille."

"Shocking and very Sad news to get. Matt was a vibrant and energetic guy who was fun to work with. My deepest condolences and heart felt sympathies to his family and friends."

"Deepest condolences to Mathieu’s family."

"À toute la famille et les proches de Mathieu, je souhaite mes sincères condoléances.  Mon neveu Mathieu était un homme remarquable, admirable.  Tellement humain, gentil, généreux, vif d'esprit...  Un homme rempli de ressources. Il va nous manquer. Il laisse dans mon coeur un souvenir chaleureux, un sourire."

"Quelle triste nouvelle je me rappelle cette gentille famille rencontrée au Chesnay en France quand mon fils Paul jouait avec Malena Lupien.
Mes meilleures pensées à toute la famille"

"Mathieu fut un collègue avec qui j’ai eu beaucoup de plaisir à travailler. Sa bonne humeur, son professionnalisme et sa grande résilience m’ont profondément marquée et énormément appris.

J’offre mes plus sincères condoléances à sa famille, qui comptait tant pour lui. Mes pensées vous accompagnent en ces moments difficiles. Repose en paix, mon cher Mathieu."

"Je viens d’avoir un choc ce matin en apprenant le décès de Mathieu Lupien. Il était un bon homme et un excellent père de famille. J’ai eu le plaisir de travailler pour lui à quelques reprises et ce fût une très belle expérience à chaque occasion.

Mes plus sincères condoléances à toutes sa famille et amis ."

"Tu me manques mon cousin. Je vais chérir cet héritage à ta mémoire 🤍"

"I worked with Mathieu in Korea. I remember him as a great leader without boundaries. I will miss him so much!"

"Mes pensées vont à toutes la famille. Mes sincères sympathies."

"My sincerest condolences to Mathieu's family and friends. I have fond memories of working with him during our time at Nortel."

"My sincere condolences to the entire family. I had the honor of working with Mathieu during his time as a volunteer on the AICPA’s CITP Credential Committee, and his impact was extraordinary. His dedication, passion, and commitment were unmatched, and he set a standard for what it truly means to be a volunteer leader. He was not only an outstanding volunteer, but a truly remarkable person whose kindness, professionalism, and integrity left a lasting impression on everyone he worked with. He will be greatly missed."

"Dear Lupien family, thank you for sharing this sad news. I am fortunate to have worked with Mathieu at Nortel, where his spirit of generosity and collaboration made a big difference for people facing a challenging situation. Please accept my sympathies for your loss.

With warmest regards,"

"My sincerest condolences to Matt's family and friends. We worked long hours together in finance at Nortel's head office for a few years in the late 90's. Matt was always so positive and hardworking and brought great energy to uplift team morale. Matt introduced our work team to a fun Canadian band called "Great Big Sea" which he played on a CD "boom box" on top of his cubicle blaring well into the night as our small team worked some very long hours. He is dearly missed. May Matt rest in peace."

"My condolences to the family. Met him briefly during the transition in Seoul outing."

"My deepest sympathies to the Lupien family. I had the privilege of working with Mathieu at Nortel."

"Mathieu was an exceptional person and mentor. During his time at CSL he always made time for his team at all levels. He was the first to sit me down and encourage me to “Lean In.” As a leader, he valued the insights of others and recognized the strengths of his team. He showed aspiring leaders like myself that it is possible to grow professionally while being present for your family. His positive influence on me and others will always remain, and he will be remembered. My sincere condolences to his family and friends."

"** version française plus bas **

I’ve been thinking about what it means to lose a brother, to lose someone who knew you your whole life.

Matt remembered things I’ve forgotten – games we played, arguments we had, the version of me that existed before who I am now. When he died, those memories became mine alone to carry. It’s a weight I wasn’t prepared for.

But grief has a strange companion: gratitude. And reading your messages, I’m overwhelmed by both.

You’ve reminded me that Matt’s kindness wasn’t reserved for family. He was the same with everyone: patient, present, generous with his time. The colleague who listened. The friend who cooked. The host who made you feel at home in a city thousands of miles away. Please, continue to post your stories and your photos!

I followed him into playing marbles, into soccer, into basketball, into refereeing, into business school, into becoming a TA, into technology… I didn’t realize until much later that I was also following him into a way of being: show up, help out, don’t make a fuss about it.

I remember visiting him in Paris. Michelle and I arrived exhausted, but he soon had us visiting the city and eating unseemly amounts of cheese. I had also invited friends to join us at the time and he treated us all like royalty and made sure we were occupied while he went in to work. He had a gift for making hard things feel easy, making strangers feel like family.

Matt was the person I called when I didn’t know what to do. When you had a problem, he didn’t just sympathize, he helped you solve it. He’d listen, ask a few questions, and somehow the path forward would become clear. I always assumed he’d be there for the next call.

Although with Matt I’ve lost a part of my story, I’ve pledged to remember his story, to honour him and to pay his kindness forward. He was a role model for me my whole life, and now he’s become one for my children too, proof that his influence will carry on. If everyone reading this can do the same, to pay it forward, I am sure he would be thrilled that this was part of his legacy.

Matt was my brother, my counsellor, and my friend.

I miss all three."

"Je réfléchis depuis quelque temps à ce que signifie perdre un frère, perdre quelqu’un qui t’a connu toute ta vie.

Mathieu se souvenait de choses que j’ai oubliées – des jeux auxquels on jouait, des disputes qu’on a eues, la version de moi qui existait avant celle que je suis devenu. Quand il est parti, ces souvenirs sont devenus les miens seuls à porter. C’est un poids auquel je n’étais pas préparé.

Mais le deuil a un étrange compagnon : la gratitude. Et en lisant vos messages, je suis submergé par les deux.

Vous m’avez rappelé que la gentillesse de Mathieu n’était pas réservée à la famille. Il était le même avec tout le monde : patient, présent, généreux de son temps. Le collègue qui écoutait. L’ami qui cuisinait. L’hôte qui te faisait sentir chez toi dans une ville à des milliers de kilomètres de ta maison. S’il vous plaît, continuez à partager vos histoires et vos photos!

Je l’ai suivi dans les jeux de billes, dans le soccer, dans le basketball, dans l’arbitrage, dans les études en administration, dans le rôle de TA, dans la technologie… Je n’ai réalisé que bien plus tard que je le suivais aussi dans une façon d’être : être présent, aider, ne pas en faire tout un plat.

Je me souviens de notre visite chez lui à Paris. Michelle et moi sommes arrivés épuisés, mais il nous a vite fait visiter la ville et manger des quantités indécentes de fromage. J’avais aussi invité des amis à nous rejoindre et il nous a tous traités comme des rois, s’assurant qu’on soit occupés pendant qu’il allait travailler. Il avait le don de rendre les choses difficiles faciles, de transformer des étrangers en famille.

Matt était la personne que j’appelais quand je ne savais pas quoi faire. Quand tu avais un problème, il ne faisait pas que sympathiser, il t’aidait à le résoudre. Il écoutait, posait quelques questions, et d’une façon ou d’une autre, le chemin à suivre devenait clair. J’ai toujours pensé qu’il serait là pour le prochain appel.

Bien qu’avec Mathieu j’aie perdu une partie de mon histoire, je me suis engagé à me souvenir de la sienne, à l’honorer et à perpétuer sa gentillesse. Il a été un modèle pour moi toute ma vie, et maintenant il l’est devenu pour mes enfants aussi, preuve que son influence perdurera. Si tous ceux qui lisent ceci peuvent faire de même, donner au suivant, je suis certain qu’il serait ravi que cela fasse partie de son héritage.

Mathieu était mon frère, mon conseiller et mon ami.

Les trois me manquent."

"So sad to hear this. My sincerest condolences to family and friends. May he rest in peace"

"My deepest condolences; his kindness and character have left a mark on anyone who had the pleasure of knowing him."

"A mentor to me; both in the way he conducted business, and as a family man. May his family find strength during this time. Mathieu, you will be missed."

"Je tiens a adresser nos condoleances a votre famille. Ayant connu Mathieu brievement lors de son passage en Coree, il jouait dans notre club de handball (Seoul Expats) et nous rejoignait pour les entrainements et lorsqu'il le pouvait lors des matchs le weekend. Je me souviens d'une personne extremement calme et respectueuse, mais aussi tres attentionne vis-a-vis du prochain. Un soir, il a gentilment propose de nous deposer, deux amis et moi. Je me souviens de son chauffeur et de la Kia Carens Limousine noire qui etait venu nous prendre. Nous etions agreablement surpris du geste, mais finalement je pense qu'en depit de l'ecart qu'il y avait entre nous a ce moment la de nos carrieres respectives, c'etait simplement 'Mathieu being Mathieu'. Courage a sa famille."

"J'ai travaillé avec Mathieu lorsqu'il était chez Nortel en France. Nous avons beaucoup travaillé, mais aussi beaucoup ri, et j'ai pu bénéficier de ses conseils et de sa sagesse.

J'ai également eu la chance de l'emmener chez moi, en Haute-Savoie, pour un week-end de ski à Combloux/Megève. Nous avons notamment terminé une soirée par une partie de luge mémorable, de nuit, sur les pistes de ski. C'est une soirée et un week-end auxquels je pense encore souvent et qui me donnent beaucoup d'énergie et le sourire.

Toutes mes condoléances vont à la famille. Perdre quelqu'un de cette envergure est évidemment une épreuve, mais ses enseignements, sa sagesse et son intégrité restent en chacun de nous."

"My sincere condolences"

"I knew Matt by reputation before I ever met him in person. Nortel was a large organization but Matt had developed a strong reputation, especially within the finance community where he was well known for his leadership.

I was already based in Seoul working at LG-Nortel when Matt arrived and took over as CFO. We become close colleagues and great friends outside of work. We worked through some challenging projects at the JV and at the same time spent so much time over the years laughing and joking around over lunch or long dinners that always started at exactly at 6pm (the Korean expats will understand what I mean.) Sometimes the jokes might go a bit too far and I would quickly say - don’t repeat that! Matt would just respond with the huge smile so many others have talked about.

When I was leaving Seoul Matt took me out on my last night to everyone’s favourite chicken place. It was not a restaurant per se - just an old lady with a giant wood fired outdoor chicken rotisserie and some plastic tables and chairs that clogged up the sidewalk and street. The ajuma would strategically slice up the chicken so you could eat the entire thing with chopsticks and there would be nothing left but the carcass. We sat there for hours…

… we lost touch a bit over the years after Nortel. When I got the terrible news about his diagnosis I was lucky enough to visit him twice over this past summer.

Going to see him I was apprehensive about what it would be like. When he opened the door it was the same Matt Lupien. Much thinner of course and clearly fighting a battle but he was not someone who had been defeated or feeling sorry for himself. He had the same smile and was fighting to enjoy whatever time we had.

We didn’t dwell on anything - just picked up as if we were still in Seould sitting on the street eating a whole chicken or two. I made one of those jokes and quickly said - don’t repeat that! He looked at me straight faced and said - “I’ll take it to the grave - literally.” He just smiled at what I’m sure was a horrified look on my face. And then we both laughed and laughed. Just like old times…

What a huge loss this is.

I was lucky to be his friend."

"Oh no! What sad news.I have only positive memories of Matthieu during his time in France.
Mes condoléances les plus sincères à sa famille et ses proches."

"Mes sincères sympathies à toute la famille"

"Matt was a joy to work with; a really decent person. My sympathies to the family"

"Toutes mes sincères condoléances à la famille de Mathieu. J’ai eu la chance de travailler avec lui. Il était curieux, ouvert au changement et d’une grande intégrité."

"My sincere condolences to Mathieu's entire family. Thoughts and prayers are with you in these difficult times. I was blessed to have known Mathieu. He was an amazing human being, a great friend and an inspiration. He will be missed, but not forgotten. Best!"

"Rest in peace Mathieu. You will not be forgotten."

"Sincerest condolences, was a superb individual and appreciated working together along with all the mentorship and advice. May he rest in peace."

"I’m very saddened to hear this news. Mathieu was one of my first boss at Nortel, we shared a passion for technology and process improvement but it is his leadership and ability to bring people together that I’ve always admired and aimed to emulate. You will be missed!"

"Toutes mes sympathies à la famille et aux amis."

"Mathieu, you were a true stand-out in the crowd for all the best reasons! The passion you brought into any room was always on full display. The world has lost a great one indeed but you have left behind an outstanding legacy that will carry others for years to come. God bless you and everyone in your orbit."

"Ce fut un plaisir de travailler avec Mathieu et d’avoir reconnecter il y a environ un an. Mes pensées sont avec la famille. Bon courage."

"My deepest condolences to his family."

"Quelle tristesse d'apprendre cette nouvelle. Toutes mes condoléances à sa famille et ses proches."

"My sincerest condolences to Mathieu's family and loved ones. I had the pleasure of working with Mathieu for a short time."

"Hi Nathalie & family,
Matt was a very special person, it was a privilege to have him in my life. I will miss his smile, his enthusiasm/ optimism, his integrity and his ability to work with others & make the team better."

"Mathieu's passing is such a great loss, it is difficult to put into words. Such a great person, business partner, leader, family man and friend. Despite our hectic workloads and schedules, he always took the time to listen and to genuinely help others. Deepest condolences to his family and friends."

"Such sad news. I worked with Mathieu at CSL. He was our CFO and oversaw the IT department where I work. He was such a kind and genuinely good human being. I always enjoyed chatting with him about tech whenever I had to go to his office to help him with something. Often, our conversations lasted longer than the work I went there to do. He was missed when he left the organization and he will surely be missed even more now. My deepest and most sincere condolences."

"Sorry to hear the sad news. He was a colleague at Nortel and at Ericsson-LG. My sincere condolences to the family."

"My sincere condolences and prayers to the Lupien family.

I had the privilege of working with Matt during our time at LG-Nortel in Seoul, and it was filled with adventure and great memories.

May he rest in eternal peace"

"My condolences to Mathieu's family. I had the privilege of crossing paths with Mathieu in Montreal, Paris, and later in Seoul—the latter being where I had the pleasure of working directly with and learning from him. A great guy. Shocking news. Terribly sorry for his family."

"Such a tough loss. What an amazing colleague and family man. Peace be with you"

"Very saddened by the news. What a tragedy.

Worked with Matthieu a fair bit particularly during the LG Nortel setup. Such an unfortunate loss to the family and to the world in general when someone so young and promising passes before their time.

Our condolences and prayers to the Lupien family."

"My condolences to his family and friends. I had the chance to have Mathieu as my mentor in my university last year, he was a wonderful mentor and added a lot to me. Rest in peace."

"A toute la famille de Mathieu,
Je tiens à vous offrir mes plus sincères condoléances. Mes pensées sont avec vous et je vous souhaite beaucoup de courage dans cette période difficile."

"What sad news, I worked closely with Matt, he was always supportive and a wonderful person. I am deeply saddened for Matt's family and wish my sincere condolences. A life well lived and will be missed by all he touched."

"Very sad news. Matt was a nice man with energy and kindness. Condolences to his family."

"Condolences to his family in this time of sorrow and grief ✝️🙏"

"What sad news. I worked with Mathieu at Nortel and always appreciated his knowledge, kindness and beautiful soul. My thoughts and prayers are with you."

"Je me joins à mes anciens collègues pour dire toute ma tristesse ! Toutes mes pensées à ses proches et à sa famille J’ai beaucoup apprécié Mathieu comme personne et comme professionnel ! L’esprit de celles et ceux qui partent reste ancré en nous, c’est essentiel, et il ne faut jamais l’oublier !"

"My sincerest condolences to the family. Mathieu was a kind generous person who was always willing to help. It was a pleasure working with him at Nortel.🙏"

"Mes sincères condoléances à la famille. Nos chemins professionnels se sont croisés il y’a quelques années. C’était un professionnel passionné et très humain. Qu’il repose en paix."

"Tellement atristé d’apprendre cette nouvelle. Mes sympathies à toute la famille Lupien. J’ai connue Mathieu à partir du secondaire par l’entremise de son frère Stéphane, puis ensuite croisé à quelques reprises à ses débuts avec Nortel. Repose en paix Mathieu."

"My sincere condolences to Mathieu’s family. I knew Mathieu from Nortel and remember him as a wonderful colleague and person. I have only great memories of him, and it’s clear from your tribute how deeply he touched those around him. My thoughts are with you during this difficult time."

"Very sorry to receive this sad new, Matt was a great guy both at work and play.. a confident Finance Leader and avid Cyclist!
My thoughts and prayers go out to his family!"

"I'm very saddened by the news. Mathieu's positive energy was infectious. My sincerest condolences to his family and friends"

"I am deeply saddened to hear about your loss. Please accept my heartfelt condolences during this difficult time.

I worked with Mathieu at Nortel and we kept in touch over the years and I will always remember his infectious smile and his genuinely good nature. I feel truly blessed to have called him a friend, and his warmth and positivity touched everyone around him."

"My deepest sympathies to the entire Lupien family. Every interaction with Mathieu was always filled with positivity, ambition, and kindness. He was always eager to smile and I’ll remember him fondly. My prayers are with you."

"Our thoughts and prayers are with the close and extended family of Mathieu during this difficult time. Being a friend of Mathieu since l'Ecole Secondaire Louis-Riel and eventually University of Ottawa and beyond, we are deeply saddened with this news. He was one of the individuals who gave people energy when he arrived (wherever that may be) and he will be sorely missed.

Derek Austin & Sylvie Lacombe"

"Very sad news. My sincere condolences to Nathalie, his children and the Lupien family."

"Mathieu and I worked closely at CSL, but only for a couple of years. Not only was he smart and dedicated, but he was always smiling and had an infectious energy. We bonded over our kids' love of sport, and usually snuck away once a month for lunch at his favourite Chinese noodle house near our office. He passed away far too young, and my heart goes out to Nathalie and the kids in this difficult time."

"Deepest condolences to Lupien family. Along with a few others here, I also met Matt at the University of Ottawa and as one of the leaders in the business faculty, he helped me integrate into university life and had such a profound impact on me. He will be dearly missed."

"Matt had an extraordinary way of showing love through action—always thoughtful, generous, and deeply caring. As his sister-in-law, I witnessed firsthand how he quietly took care of the people he loved.

The memories we shared, both big and small, will stay with me forever. His courage, kindness, and gentle wisdom will continue to guide me, and I will always honour him by paying his goodness forward."

"My condolences to the Lupien family. I remember Matt from Ottawa U and worked as one of his TA’s when he was head TA. He was a very intelligent and compassionate individual. May his memory be a blessing."

"May Mathieu's memory be an eternal blessing to his family, friends and colleagues."

"Toutes mes sympathies, j'en garde un excellent souvenir!!!"

"What?!?! I worked with Mathieu at Nortel. Such a gentleman. I cannot believe. So young! Oh no my sincere sympathies"

"Saddened. Thank you for sharing. Such a kind, caring, respectable life and person. Kindness shown. Kindness received."

"Mes sympathies à toute la famille. J'ai toujours aimé mes discussions avec Marhieu."

"Very sad news. My sincere condolences to the family."

"Mes sincères condoléances à toute la famille Lupien ainsi qu’à tous ceux qui ont connu et apprécié Mathieu."

"Ayant grandi avec Mathieu, je sais a quel point qu’il était proche de ses frères, malgré les distances qui parfois les séparaient. J’offre mes plus sincères sympathies à toute sa famille, y compris Mariette et Sarto et la grande tristesse qu’ils doivent ressentir.
Merci à tous ceux qui partagent leurs témoignages car c’est si beau de voir tout ce que Mathieu a accompli et tous les gens touchés par sa grande gentillesse."

"I was deeply saddened to hear the news, and I cannot stop my tears.

I will never forget the kindness he showed me when I lost several family members one after another. While I was in deep grief, he went above and beyond to find a way for me to take time off so I could focus on recovering, even though it wasn't a standard company policy. I will be forever grateful for the way he looked out for me during my most difficult time.

I also deeply respected his leadership as our CFO. When our division faced unfair situations, he even sought external consulting to ensure we were treated fairly. He always prioritized rational decisions and shielded us from organizational difficulties.

I still fondly remember seeing him with his family at the building's cafeteria, sharing a laugh and enjoying those tender moments. I have often thought of his kind heart throughout my life.

My deepest condolences and heart go out to his family once again."

"Sincere condolences to Matthieu's family from Korea. We worked with him on a project while he was here with Ericsson, and found him insightful, caring, and a good example of responsible leadership to his staff. We are sure he will be sorely missed."

"So sorry to hear this news. My deepest condolences to Mathieu’s family."

"Mes condoléances à la famille. Je suis très troublé d’apprendre son décès. Mathieu a été le meilleur collègue et patron que j’ai eu. Il a toujours eu les bons mots et les bons conseils pour me faire évoluer et mieux réfléchir. On a gardé contact au fil des années en grande partie grâce à lui et à sa capacité de rassembler les gens. Tu vas nous manquer Mathieu."

"My sincere condolences to Matt’s family and friends. He was a wonderful friend and colleague - always caring and helpful. This is an extremely sad loss."

"My sincerest condolences to the family and friends."

"Toutes mes sympathies à sa famille. Mathieu avait une capacité peu commune à faire ressortir le meilleur des autres. Il laissera une empreinte pour longtemps chez beaucoup."

"Mes sympathies à toute la famille"

"Mes sincères condoléances à la famille et aux proches."

"🙏 for Mathieu and his family 🙏."

"Sincères condoléances 💐"

"Deeply saddened with this news. Matt was a great colleague at Nortel, always willing to assist and go the extra mile. His positive attitude always inspired those around him. My thoughts and prayers are with his family at this time."

"May his soul rest in peace and condolences to his family 🙏"

"Mathieu was such an energetic, smart and kind colleague and this is truly terrible news. My sincere condolences to his family and friends."

"Mes sinceres condoleances a toute la famille."

"Mathieu was special on many fronts.... My sincere condolences to the family."

"I’m deeply saddened by this news. My heartfelt condolences to the family. May his souls rest in peace."

"My condolences to Mathieu's family and friends. I have fond memories from working with Mathieu at Nortel."

"My sincere condolences to the Lupien family."

"Mes plus sincères condoléances à toute la famille."

"Mes sympathies à toute la famille de Mathieu que j’ai croisé dans ma carrière à Nortel où ses connaissances en finances et en comptabilité et surtout sa façon de les expliquer si clairement m’ont toujours impressionné .

Tout ça juxtaposé avec les qualités d’un grand leader hyper sympathique.

Sincères condoléances."

"A great man, colleague and friend. We last spoke when he started his company. He was very excited about it."

"My sincerest condolences. Mathieu was a mentor to me during our time together at Nortel and remaining goods friends as our professional and personal paths continued to cross. Many good memories together, I will cherish."

"Matthieu and his family showed me so much kindness when I moved to South Korea. Though he only knew me through my mom, Matthieu looked out for me and helped me as I adjusted to the new life in a new country. He even had me over for a lovely dinner and evening with the family and his fellow expat community (picture attached).

I’m heartbroken to hear about his passing, and the whole family is in my thoughts and prayers during this time.

To the Lupien family, thank you so much for showing me so much kindness, and for your mission to pay it forward to others in his memory. Thinking of you all"

"To Stephane and all his family, please accept our deepest sympathies on this very difficult time. Having a brother myself , I can’t imagine how painful this must be."

"Quelle triste nouvelle de perdre un confrère et ami si apprécié. Courage à Nathalie et aux filles."

"Mes sincères condoléances ! À toute sa famille ainsi qu’à sa famille de CPA"

"Matthieu était un excellent collègue
et ami. Très bons souvenirs de son passage en France

Nous sommes tellement triste d apprendre cette mauvaise nouvelle

Toutes mes condoléances à sa famille"

"These are such beautiful words describing Mathieu, his life and his legacy! I’m so sorry for your loss."

"Quelle tristesse, mes sincères condoléances à la famille. Ce fut un plaisir de t’avoir côtoyé et bon voyage!"

"Mes plus sincères condoléances à toute la famille."

"My deepest condolences to Mathieu’s family. We worked together at Nortel and I have very fond memories of him. He was a generous and beautiful soul. Rest in peace Mathieu!"

"My heart goes out to Matt’s family, friends and colleagues during this difficult time. Mathieu will be greatly missed."

"Toutes mes sympathies a toute la famille."

"Mes sincères condoléances à toute la famille. J'ai bien apprécié, comme plusieurs collègues, travailler avec Mathieu. Il était généreux de son temps et bienveillant."

"So sorry to read this news. Matt was an inspiration to many and led through a wonderful example. Deepest sympathies to your family."

"Mes sincères sympathies à toute la famille"

"My sincerest condolences"

"Mes condoléances"

"Mathieu fut un compagnon de travail et par la suite un ami. Dote’ d’une grande intelligence, Mathieu était aussi intègre, généreux dans ses conseils et un bon vivant. Les photos qu’il prenait étaient exceptionnelles et je me rappelai toujours de son poulet BBQ à la bière! Tout simplement délicieux!! Mathieu tu mérites de te reposer maintenant."

"C'est avec tristesse que j'apprend le décès de Mathieu. Il avait une personalité joviale et des plus sympatique. Jai croisé Mathieu dans son aventure d'expat en Fance et en Asie. Toute mes sincères sympathies a sa famille."

"My sincere condolences to his family. Matt was a bright and kind soul. He will be missed deeply by many."

"Mes sincères condoléances à la famille et aux proches."

"Je n'ai croisé Mathieu que qques fois mais j'ai quand même eu la chance d'apprécier sa gentillesse et générosité! Mes sympathies à toute sa famille."

"That is truly sad news. My sincere condolences to his family and friends 🙏"

"Mathieu touched many lives and everyone will miss him. Condolences to Mathieu's family."

"Toutes mes condoléances"

"Mes sympathies à toute la famille."

"Je vous offre mes plus sincères condoléances!"

"Mes sympathies !!! J’ai eu l’occasion de collaborer avec Mathieu !! Un chic type très professionnel avec qui j’ai apprécié développer une relation ! Toutes mes pensées à la famille 💐"

"Mes sincères condoléances à toute la famille Lupien. Je suis sous le choc d’apprendre que Mathieu nous a quitté. Mathieu était poir moi au départ un client et un alumni de PwC et enfin un collaborateur du groupe de CFO et de la profession. Un réel gentleman."

"Toutes mes sympathies a la famille et amis"

"J’ai travaille de tres pres avec Mathieu chez Pierre Belvedere inc en 2013-14. J’ai été impressionne par son professionnalisme, sa generosite, son calme dans des situations difficiles. Je me souviens de l’importance qu’il accordait a sa famille. Bon courage a Nathalie et les enfants et toute sa famille"

"oh, mes condoléances à la famille et ses amis proches 😢"

"My condolences to family and friends. Very sad news. R.I.P Mathieu."

"Mes condoléances à la famille."

"Nous garderons toujours le souvenir de cette journée où Mathieu et toute la famille sont venus revoir leur maison du Chesnay. Nous avons partagé tous nos souvenirs avec tant de plaisir! Vingt ans après nous n'oublions pas la joie de vivre de Mathieu, disparu trop tot, et prions pour lui."

"Mes condoléance à toute la famille. Mathieu a été un collègue de travail très apprécié, professionnel et avec une grande passion pour tous ce qu’il entreprenait. Merci d’avoir partagé 💐💐💐"

"Mes sincères condoléances à vous tous!"

"Mes sympathies à toute la famille 💐"

"Toutes mes sympathies a la famille."

"Quelle triste nouvelle. Mes condoléances les plus sincères à toute la famille. Il n’y a pas de mots qui puissent aider à soulager la peine que vous vivez en ce moment. Je vous envoie de la force et du courage pour passer à travers cette terrible épreuve"

"Mes sincères condoléances à toute la famille. Ce fut un privilège de travailler avec Mathieu. 🙏"

"Mes sincères condoléances à toute sa famille. Merci Mathieu pour ta gentillesse, ta bonne humeur, ton soutien et nos échanges autour d’un café aux fils des années."

"Oh my! I am deeply saddened by this news. My connection with Mathieu goes back to 1992 when he was my TA for ADM 1300 at Ottawa University. He was a model student and an inspiration to always persevere. While I struggled with balancing school, he was always in my corner and offered big brotherly advice. I am truly fortunate to have crossed paths with a great man who was taken far too early. My deepest sympathies go out to Mathieu’s family."

"Mes sincères condoléances à toute la famille"

"Mes sincères sympathies à toute la famille. Mathieu a été un collègue de travail extraordinaire: calme, posée, tourné vers l’humain. Un homme de valeurs et de coeur. Je vais me rappeler de sa voix grave. 🤍"

"Sincere condolences. Worked with him briefly at Ericsson. Very professional and friendly"

"My condolences to his family and friends. I had the privilege of working with Matthieu through the AICPA and also on a business project. He was intelligent and kind man. May his souls rest in peace."

"Je suis en choc, sans mot. Quelle triste nouvelle.
Mes sincères condoléances à Nathalie, ses filles et toute la famille. Bon courage!"

"My most sincere condolences 💐. I worked with the him at Nortel and he was an absolute pleasure to work with and for. I am so sorry for your loss."

"Je suis tellement triste d'apprendre cette nouvelle terrible. Que de merveilleux souvenirs avec Mathieu.
Mes condoléances les plus sincères à sa famille"

"I’m shocked and saddened to hear this news. I worked with Matt at Nortel and have so many fond memories. He went on to accomplish so much. Such a big loss. Condolences to his family and friends."

"Oh, he was wonderful. He reached out to me while he was a CA student, hating the work, after seeing an article I wrote in CAMagazine about the future. He stuck it out, and emailed me as soon as he passed his UFEs. We kept in touch through the years, sharing the story and celebrating his success along the way. Since then, I've shared his story from the stage (I'm a speaker) as the most wonderful example of why getting foundation knowledge (the CA degree) is the key to unlocking your future. To his wife and children - know that your dad was a wonderful man and touched so many through this story of what it means to commit to your goals. I last connected with him in 2023; we shared the story again, had a few good laughs, and connected once again. I am so sorry for your loss. - Futurist Jim Carroll"

"I am so sorry to hear this. Mathieu Lupien was a gentleman and a scholar. For the few years that he work as an employee at my former business Portraits Now he was a star performer and talented photographer.
I will sincerely miss him.
Our condolences to the Lupien family
Steve"

"I worked with Mathieu at Nortel and was blessed to know him and work in his organization. He had a tremendous smile and was brilliant and graceful. My prayers are with you all!"