People · Operator
Named in public records as an officer, director or promoter · active 2019–2023 · Other Health Care
| Company | Role | Sector | Stage | Raised · real | Value · est | Tied |
|---|---|---|---|---|---|---|
| OS1 Holdings, Inc. | — | Other Health Care | Seed | $4.8M | $1.2M | 2019 |
Donald Bruce Irwin 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 Donald Bruce Irwin on the same companies — an interlock signal (shared founding team, board, or fund). Name-matched, so verify before acting.
| Operator | Shared | Their companies |
|---|---|---|
| William R. Dexheimer | 1 | 2 |
| E. Lyle Cain, Jr. | 1 | 1 |
| Dustin J. Taylor | 1 | 1 |
| Bruce R. Akin | 1 | 1 |
| Randy R. Johansen | 1 | 1 |
| Alonzo J. Strickland, III | 1 | 1 |
| E. Lyle Cain | 1 | 1 |
| Arie Vance, III | 1 | 1 |
| Alonzo J. Strickland | 1 | 1 |
| Edward Lyle Cain | 1 | 1 |
| Arie R. Vance | 1 | 1 |
| Adam R. Krazer | 1 | 1 |
| Mark J. Covin | 1 | 1 |
| Joshua R. Smithey | 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.