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David Ossip

Founder, Chair & CEO, Dayforce

HR TechToronto

David Ossip founded Dayforce in 2009, sold it to Ceridian in 2012, became Ceridian's CEO in 2013 and turned the Minneapolis payroll company into a cloud HCM business that took his product's name in 2024. Thoma Bravo took Dayforce private for US$12.3 billion in February 2026 with the Toronto-based Ossip still its founder, chair and CEO.

David hasn’t spoken on a TechTO, TechVancouver or TechWaterloo stage. This profile is here because David co-founded Dayforce.

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Quick answers

Did David Ossip found Dayforce?

Yes. Dayforce's own leadership page, checked 2026-10-15, lists him as CEO and Founder. The Globe and Mail's 2017-10-03 profile says he launched Dayforce in 2009, that Ceridian bought the young Toronto software firm in 2012 and that he became Ceridian's CEO in 2013. BetaKit's 2025-08-20 story says he founded Dayforce in 2009 and became chair and CEO after the 2012 acquisition.

What is his role today?

Founder, chair and CEO. Thoma Bravo's 2026-02-04 release on completing its acquisition titles him Chair and CEO of Dayforce, and Dayforce's leadership page, checked 2026-10-15, says CEO and Founder. The Globe and Mail (2025-08-20) notes he shared the CEO title with Leagh Turner from early 2022 to November 2023. Thoma Bravo's release gives the deal at approximately US$12.3 billion, or US$70.00 per share in cash.

Is Dayforce a Canadian company?

Its domicile and official headquarters are American; its founder and executive base are in Toronto. The Globe and Mail (2025-08-20) says he built Ceridian's effective headquarters and executive team in Toronto, where much of the development work takes place, while keeping the U.S. domicile and Minneapolis headquarters. BetaKit (2025-08-20) calls him a Toronto-based entrepreneur. Dayforce's leadership page says he holds a bachelor's degree from the University of Toronto and an MBA from Harvard Business School.

What did he do before Dayforce?

He founded Workbrain, a time-and-attendance software company. The Globe and Mail (2017-10-03) says Workbrain was bought by Infor Global Solutions for $227-million (Canadian) in 2007; BetaKit (2025-08-20) gives the same sale. The Globe (2025-08-20) describes him as South African-born and a veteran Canadian software founder. He has not spoken on a TechTO stage; the Dayforce page exists because two published profiles name the company.

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Maintained by TechTO · facts sourced and dated · last reviewed Oct 15, 2026