People · Operator
Named in public records as an officer, director or promoter · active 2012–2012 · Biotechnology
| Company | Role | Sector | Stage | Raised · real | Value · est | Tied |
|---|---|---|---|---|---|---|
| California Stem Cell Inc | — | Biotechnology | Seed | $1.9M | $86.6M | 2012 |
Mark Surfas at the center, the companies they're named on, and every other operator named alongside them — an interlock map of shared founding teams, boards and funds. Name-matched, so treat as a research lead.
People named alongside Mark Surfas on the same companies — an interlock signal (shared founding team, board, or fund). Name-matched, so verify before acting.
| Operator | Shared | Their companies |
|---|---|---|
| Hans Keirstead | 1 | 3 |
| Christopher Airriess | 1 | 1 |
| David Frosh | 1 | 1 |
| Jason Livingston | 1 | 1 |
People are matched by normalized name across records; a common name may merge distinct individuals. Treat as a research lead, the same way modeled valuations are directional, not quoted.