
Mark Rosenblum
Healthcare investor/operator — CEO, Terrarium; Partner, Company Ventures
mark-rosenblum
New York, New York
Joined October 2025
Network
11.6K connectionsSummary
Operator-investor focused on healthcare incubation and venture building: Mark combines experience in public and sell-side markets with hands-on venture studio operation. He has led New Ventures at Redesign Health (incubating multiple companies) and now runs Terrarium, a founder-centric, low-volume/high-conviction venture studio built out of Company Ventures with health system partners to pilot and scale early-stage health tech. medium+2
Deep roots in healthcare finance and research: his background in investment banking (Jefferies), equity research (Morgan Stanley), and public-market investing (Epoch) informs a data-driven approach to company selection, diligence, and business model design for healthcare startups. healthimpactlive+1
Thesis-driven focus on healthcare data, AI, value-based care, and workforce solutions: public comments and studio materials emphasize four core themes (healthcare data/AI, value-based care and specialty medicine, workforce management, and healthcare financial infrastructure) as Terrarium's priorities, and he emphasizes a proprietary, data-driven founder talent platform. hcinnovationgroup+2
Work
Education
Projects
Writing
The Evolving Healthcare Data Stack
March 7, 2024Terrarium/Company Ventures insight piece (authored/posted on Terrarium site) on healthcare data complexity, regulation, and implications for startups and interoperability.
Mark Rosenblum: My Three Favorite Things About Working at Redesign Health
May 31, 2022First-person feature describing his experience co-creating and launching healthcare companies at Redesign Health and themes that motivated his approach to incubation.