People · Operator
Named in public records as an officer, director or promoter · active 2021–2021 · Healthtech
| Company | Role | Sector | Stage | Raised · real | Value · est | Tied |
|---|---|---|---|---|---|---|
| Health Rhythms Inc. | — | Healthtech | Series B | $19.4M | $217.9M | 2021 |
Mark Mathews 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 Mathews on the same companies — an interlock signal (shared founding team, board, or fund). Name-matched, so verify before acting.
| Operator | Shared | Their companies |
|---|---|---|
| Gus Tai | 1 | 4 |
| Seth Feuerstein | 1 | 4 |
| John Chuang | 1 | 3 |
| Richard Zane | 1 | 3 |
| Sunny Kumar | 1 | 3 |
| Paul Gilbert | 1 | 3 |
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.