In memory of

Derek Riendeau

November 15, 1960 -  January 15, 2026

Derek passed away surrounded by love with family and friends at his side, after a courageous battle with cancer.

He was the loving husband of 35 years to Inge, and a devoted father to Josh (Olga), Monique (Ryan), and Natalie. His children were his greatest loves and proudest accomplishments.

Derek is survived by his dear mother, Marilyn; his sister, Sharon (Randy); and his extended Riendeau, Reuben, and Muzzi families. He was predeceased by his father, Tony.

Born in Toronto, Derek grew up in the city’s east end and attended Malvern Collegiate. He went on to graduate with high distinction from the University of Waterloo, earning a Bachelor’s degree in Mathematics (Computer Science).

Derek spent over 25 years at CAPSCO/Solcorp, a software consulting firm, where he built lasting friendships with colleagues he deeply valued. His entire career took him across five continents and included extended periods living in Paris, France and Epping, England.

Derek had many passions including travel, fitness, music, movies, the Toronto Maple Leafs, good food, and his beloved dog, Billie. Above all else, he cherished his family.

Donations may be made in his memory to the Crohn’s and Colitis Foundation or Colorectal Cancer Canada. Alternatively, friends are invited to raise a toast in his honour.

Family and friends are invited to attend Derek’s Celebration of Life on Saturday, January 24 at 2:00 p.m. at Pine Hills Funeral Centre, 625 Birchmount Road, Scarborough. A reception will follow from 3:00 to 5:00 p.m.


Guestbook 

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Marie Shelley (Former Colleague)

Entered January 20, 2026 from Kitchener

Derek and I worked together in Paris. He was always ready to help out others on the team, which was especially nice for me, a newbie at the time. He was calm in the midst of stress, and deeply respected. My condolences to his family, I am so sorry for your loss.

Rita Damignani (Old friends from the Beach)

Entered January 20, 2026 from Thornbury, Ontario

We are incredibly saddened to hear of Derek’s passing. We remember Derek as a hardworking, kind and gentle man. He has left behind the legacy of a beautiful family. Shawn and I wish you comfort in all your memories and peace and strength from family and friends. Fondly,
Rita & Shawn

Lisa S Rose (Friend from work)

Entered January 21, 2026 from North York

I'm so sorry for this enormous loss. Derek and I worked on many projects together and I will always remember his brilliance and great humour.
My regrets for not being able to attend his celebration.

Georgina Rose (Former coworker)

Entered January 21, 2026 from Collingwood, ON

My sincere condolences to all the family. I knew him when I worked at Solcorp and I was saddened to hear of his passing. Will be thinking of the family at this difficult time.

Paul & Holly Whitwell (Cottage friends)

Entered January 21, 2026 from Hamilton Ontario

We had the pleasure of meeting Derek and Inge a few years ago on Eagle Lake at the Muzzi family cottage.

One of our fondest memories was sitting on our dock of what we call “Muzzi Bay” sipping cocktails and wine, sharing stories, and rolling with laughter with our daughter, and Greg and Denyse.

We didn’t know Derek very well but as the drinks flowed we got him telling stories and remember Denyse saying she learned more about Derek that night than she ever knew.

We are so saddened to hear of your loss.
Please accept our deepest condolences and know that we are thinking of you and your family.

Love the Whitwell Family

Photos 

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