People · Operator
Named in public records as an officer, director or promoter · active 2015–2023 · Other Technology, Healthtech, Other
| Company | Role | Sector | Stage | Raised · real | Value · est | Tied |
|---|---|---|---|---|---|---|
| Zesty, Inc. | — | Other Technology | Series B | $19.6M | $595.8M | 2015 |
| Playback Health Inc. | — | Healthtech | Series A | $10.3M | $28.7M | 2022 |
| Amphibian GP LLC | — | Other | Seed | $1.7M | $10.9M | 2023 |
David Langer 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 David Langer on the same companies — an interlock signal (shared founding team, board, or fund). Name-matched, so verify before acting.
| Operator | Shared | Their companies |
|---|---|---|
| Danny Rimer | 1 | 16 |
| Richard Mulry | 1 | 2 |
| John Lema | 1 | 2 |
| Jon Martin Phillips | 1 | 1 |
| Richard Martin Mulry | 1 | 1 |
| Gregory Martin Odland | 1 | 1 |
| Matt Martin Whelan | 1 | 1 |
| John Martin Lema | 1 | 1 |
| Sam Martin Singh | 1 | 1 |
| David Martin Langer | 1 | 1 |
| Gregory Odland | 1 | 1 |
| Chris Hollindale | 1 | 1 |
| James Hodges | 1 | 1 |
| Todd Bendell | 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.