People · Operator
Named in public records as an officer, director or promoter · active 2018–2019 · Software / Tech, Other Health Care
| Company | Role | Sector | Stage | Raised · real | Value · est | Tied |
|---|---|---|---|---|---|---|
| r4 Technologies, Inc. | — | Software / Tech | Series A | $22.5M | $39.8M | 2018 |
| Perthera, Inc. | — | Other Health Care | Series A | $17.9M | $49.3M | 2019 |
Neil Callahan 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 Neil Callahan on the same companies — an interlock signal (shared founding team, board, or fund). Name-matched, so verify before acting.
| Operator | Shared | Their companies |
|---|---|---|
| William Lee | 1 | 7 |
| Ron Rose | 1 | 4 |
| John Pavia | 1 | 3 |
| Douglas Maine | 1 | 3 |
| Mike McSherry | 1 | 3 |
| Michael Dendy Young | 1 | 2 |
| Erik Jansen | 1 | 2 |
| Paul Breitenbach | 1 | 2 |
| David Bradley | 1 | 2 |
| Greg Oberholtzer | 1 | 2 |
| Jaswinder Matharu | 1 | 2 |
| Gary Gregory | 1 | 2 |
| Emanuel Petricoin | 1 | 2 |
| M. Dendy Young | 1 | 2 |
| Peter Belton | 1 | 1 |
| Alan Flohr | 1 | 1 |
| Mark McEnroe | 1 | 1 |
| John Robert Walker | 1 | 1 |
| Albert T Kelley | 1 | 1 |
| Federoff Howard | 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.