Constellation Software

Constellation Software Inc.
Company typePublic
IndustryIT services
Founded1995 (1995)
FoundersMark Leonard
Headquarters,
Area served
Worldwide
Key people
  • John Billowits (Chairman of the Board)
  • Jamal Baksh (Chief Financial Officer)
  • Mark Miller (President & Chief Operating Officer)
ServicesCustom Computer Programming Services
RevenueUS$10.066 billion (2024)
US$767 millions (2024)
Total assetsUS$12.863 billion (2024)
Total equityUS$3.288 billion (2024)
Number of employees
64,000
Websitewww.csisoftware.com

Constellation Software is a Canadian diversified software company. It is based in Toronto, Canada, is listed on the Toronto Stock Exchange, and is a constituent of the S&P/TSX 60.

The company was founded by Mark Leonard, a former venture capitalist, in 1995. It went public in 2006, and now has over 64,000 employees spread over six operating segments.