Company leader
Jeremy Weisz
Co-founder and CEO
Greenspace Health
Jeremy Weisz is the co-founder and chief executive of Greenspace Health, a Toronto, Ontario, company whose software helps mental health organizations measure client progress throughout treatment.
Law and Capital Markets
Weisz completed a joint business and law degree at the Ivey Business School and Western University. He began his career as a mergers and acquisitions and corporate lawyer at Goodmans LLP, then moved to business and product development roles at the NEO Exchange. He is also a co-founder of True North Sports Camps.
Founding Greenspace
In 2015 he founded Greenspace Health with Simon Weisz and Mike Lerner out of St. Michael's Hospital in Toronto. The founders had seen friends and family struggle to find mental health support or receive uneven care, and after talking with clinicians, clients and researchers they settled on the lack of meaningful measurement in mental health care as the most crucial gap.
Greenspace set out to turn the research on measurement-based care into software that clinics would use. "It's really about making MBC as approachable as possible", he said. "We know that If it's not accessible and approachable for everyone, it's not going to be adopted".
Scaling Measurement-Based Care
Under Weisz, Greenspace has grown to more than 500 organizations across North America, including a coordinated rollout across 27 clinics in Maryland that began in 2020. In March 2025 it took a Series B growth investment from ABS Capital Partners. "Measurement-Based Care is no longer optional", he said at the time.