Founded in 1976 by Trottier and Matić, and according to the article and Wikipedia, since 2019 has been owned 100% by Trottier. There's no indication that the founders lost majority ownership at any time, and although they sold off one division in 2019, it appears that Trottier still owns 100% of the remaining two divisions today.

That's pretty remarkable, isn't it? How many tech companies that had a period of being a household name have lasted 50 years and are still majority-owned by all or some of the founders?