Mark Leonard

© Mark Leonard (40511431310) (cropped), Wikimedia Commons

Mark Leonard founded Constellation Software Inc. (CSI). Prior to founding CSI, Leonard worked in the venture capital business for eleven years. He holds a Bachelor of Science from the University of Guelph, and a Master of Business Administration from the University of Western Ontario.

Early life

Not much is known about Mark Leonard’s early life, as he is known in the media to be an “intensely private person.” He doesn’t do much in the way of interviews with the media and prefers to keep a low profile. What is reported though is Mark spent about 7 years in college and played a myriad of sports, including basketball and rugby. A bio prepared for one of his rare public appearances as a speaker at Ivey Leaders Forum at the Ivey Business School said that before his stint in venture capital, “he worked as a banker, valuator, mason, gravedigger, dog handler, bouncer, sapper, and wind energy researcher.” However, the media has questioned how much of this is true. It is also reported that he is a devoted family man.


Mark Leonard founded Constellation Software Inc. in 1995. CSI is a Canadian diversified software company based in Toronto, Canada. The company went public in 2006. CSI, together with its subsidiaries, acquires, builds, and manages vertical market software businesses in Canada, the United States, Italy, Germany, India, the United Kingdom, Brazil, Switzerland, Austria, Israel, etc. It operates in the Public and Private Sectors. It serves government and government-related customers, as well as commercial customers.

“We believe that small businesses should stay small. While other purchasers of business seek economies of scale through centralization, we have taken the opposite approach. We believe that potential is maximized when teams are allowed to remain small. This enables the General manager of the business to be empowered and remains in control of all levers necessary to guide his/her business.” – Mark Leonard

Net Worth

2.3 Billion.


Constellation Software Inc. currently has a stock price valued at 1,980.18 CAD.