People · Operator
Named in public records as an officer, director or promoter · active 2022–2022 · Biotechnology
| Company | Role | Sector | Stage | Raised · real | Value · est | Tied |
|---|---|---|---|---|---|---|
| Carlsmed, Inc. | — | Biotechnology | Series C | $109.1M | $645.4M | 2022 |
Mark Singer 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 Singer on the same companies — an interlock signal (shared founding team, board, or fund). Name-matched, so verify before acting.
| Operator | Shared | Their companies |
|---|---|---|
| Jonathan Root | 1 | 16 |
| Kevin Sidow | 1 | 7 |
| ALEXANDER ARROW | 1 | 5 |
| Robert Mittendorff | 1 | 5 |
| Philip Young | 1 | 4 |
| Jeffrey Roh | 1 | 2 |
| Leonard Greenstein | 1 | 1 |
| Durall Scott | 1 | 1 |
| Niall Casey | 1 | 1 |
| Michael Cordonnier | 1 | 1 |
| Sharon Schulzki | 1 | 1 |
| Shariq Hussain | 1 | 1 |
| Justin Esterberg | 1 | 1 |
| Jonathon Root | 1 | 1 |
| Kevin O'Boyle | 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.