Founder Profile
Mark Mader
Last reviewed: October 2026 · By Swet Parvadiya
Who is Mark Mader?
Mark Mader is a founder of Smartsheet, which was founded in 2005 with Brent Frei, Eric Browne and John Creason.
- Company founded
- Smartsheet
- Founded
- 2005
- Co-founders
- Brent Frei, Eric Browne and John Creason
Background
Former Onyx Software executive who worked alongside Brent Frei before Smartsheet.
Founding Story
Mark Mader joined Smartsheet as CEO in 2006, a year after its founding, and is counted among its founding team. He led the company for about 19 years, through its April 2018 NYSE IPO, the crossing of $1 billion in ARR in fiscal 2024 and the $8.4 billion sale to Blackstone and Vista, which closed in January 2025. He retired as CEO and left the board at the end of September 2025. (Exact birth year remains publicly undisclosed).
Sources
This profile does not yet cite a source specific to Mark Mader. The sources below document the company company rather than the person, so check them against the claims above.
- Smartsheet FY2024 Annual Report (Smartsheet)
- Q3 FY2025 results (Smartsheet)