People · Operator
Named in public records as an officer, director or promoter · active 2021–2021 · Other Health Care
| Company | Role | Sector | Stage | Raised · real | Value · est | Tied |
|---|---|---|---|---|---|---|
| Empirical Spine, Inc. | — | Other Health Care | Series A | $25.3M | $95.8M | 2021 |
Don P. Johnson 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 Don P. Johnson on the same companies — an interlock signal (shared founding team, board, or fund). Name-matched, so verify before acting.
| Operator | Shared | Their companies |
|---|---|---|
| Francis P. Grillo | 1 | 2 |
| Jon P Serbousek | 1 | 1 |
| Todd P Alamin | 1 | 1 |
| Andrew P Offer | 1 | 1 |
| Kent P McCarthy | 1 | 1 |
| Jay P Watkins | 1 | 1 |
| Richard Treadwell | 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.