People · Operator
Named in public records as an officer, director or promoter · active 2020–2022 · Software / Tech
| Company | Role | Sector | Stage | Raised · real | Value · est | Tied |
|---|---|---|---|---|---|---|
| Proof Technology, Inc. | — | Software / Tech | Series B | $47.4M | $100.2M | 2020 |
Joe J Hemmer 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 Joe J Hemmer on the same companies — an interlock signal (shared founding team, board, or fund). Name-matched, so verify before acting.
| Operator | Shared | Their companies |
|---|---|---|
| James Brown | 1 | 10 |
| Christopher J. Weiler | 1 | 2 |
| Christopher Weiler | 1 | 1 |
| Zach Posner | 1 | 1 |
| David Dart | 1 | 1 |
| David Stearns | 1 | 1 |
| Mark Kreloff | 1 | 1 |
| Jessica Hunt | 1 | 1 |
| Eric Voogt | 1 | 1 |
| Devin Stearns | 1 | 1 |
| Mark J Kreloff | 1 | 1 |
| Eric J Voogt | 1 | 1 |
| Zach J Posner | 1 | 1 |
| Joe Hemmer | 1 | 1 |
| Matt J Jaffe | 1 | 1 |
| Stefan J Ramsbott | 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.