o We understand what it takes to grow and scale health services companies, and have created billions of dollars in exit value.

With more than 100 years of collective experience, our partners bring extensive investing, management and operational expertise.

Our combined knowledge enables us to deliver superior returns to our investors, and empowers our companies to develop true value for shareholders, providers, payors and patients, and become leaders in the markets in which they operate.


Diane Daych

Managing Partner and Co-Founder(203) 479-9582

Diane Daych is a Managing Partner and Co-Founder at Granite Growth Health Partners. She has more than 30 years of investing, advisory and operating experience, with more than 25 years of experience in health services. Before founding Granite Growth, Diane led Apple Tree Partners’ healthcare services investing team. From 2010 to 2012, she was a managing director and co-head, Private Equity, of the Marwood Group. Previously, since 2000 she was a partner and principal at CCP Equity Partners where she led or participated in notable investments including Cogent Healthcare, Evolution Benefits, RelayHealth, Bravo Health, and Vantage Oncology. Diane currently sits on the Board of Directors of CleanSlate Outpatient Addiction Medicine, Three Oaks Hospice, Acute Behavioral Health and the National Venture Capital Association. She is a past Chair of the Healthcare Private Equity Association (HCPEA) and was previously on the board of the Tuck Center for Private Equity and Venture Capital and QualDerm Partners.

Diane earned an MBA from the Tuck School at Dartmouth College and a BA in Economics from Lehigh University.


Mark Brooks

Managing Partner and Co-Founder
(650) 624-7700

Mark Brooks is a managing partner and co-founder at Granite Growth. He previously co-founded MMC Health Services and Scale Venture Partners, a diversified venture firm with over $1.5 billion AUM, where he co-led the healthcare group for more than 15 years. He has more than 25 years of experience investing in, operating and managing high-growth health services companies, several of which have become market leaders. Mark currently sits on the Board of Directors of Three Oaks Hospice, CleanSlate Outpatient Addiction Medicine, and Acute Behavioral Health. He has helped a number of companies successfully exit health services investments, including IPC The Hospitalist Company, Healogics, U.S. HealthWorks New Century Hospice and QualDerm Partners. Prior to joining Scale Venture Partners, Mark spent a number of years with Mercer Management Consulting, where he managed and executed projects for companies in the health services and telecommunications industries, and with Manufacturers Hanover Trust Company. Mark earned an MBA in Finance and Management from Wharton and a BA in Economics from Dartmouth College.


Paul Brown

Advisory Partner
(203) 479-9516

Paul Brown is an Advisory Partner at Granite Growth. He holds the James Lee Sorenson Presidential Chair and is a professor of entrepreneurship at the University of Utah’s David Eccles School of Business. He is also the co-director of the School’s Master in Business Creation program and an entrepreneur in residence at the University of Utah’s Center for Medical Innovation.

Prior to teaching, Paul was a managing director at Sandbox Industries in Chicago where he co-led the firm’s $300M healthcare venture capital fund, which he co-founded. Prior to Sandbox, Paul was a vice president at the Blue Cross and Blue Shield Association for ten years, where he served on the CEO’s strategy council. Previous to that, he was a partner in the Chicago office of Kirkland & Ellis LLP.

Paul serves on the boards of CleanSlate Outpatient Addiction Medicine, JQ Medical Supply, SwellCX, Cinch Solutions, and Amplify. He was previously on the board of QualDerm Partners.

Paul earned a JD from the Northwestern University Pritzker School of Law and dual BAs from the University of Utah.