People · Operator
Named in public records as an officer, director or promoter · active 2024–2024 · Software / Tech
| Company | Role | Sector | Stage | Raised · real | Value · est | Tied |
|---|---|---|---|---|---|---|
| Tantalus Systems Holding Inc. | — | Software / Tech | Pre-Seed | $366K | $1.9M | 2024 |
John J. McEwen 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 John J. McEwen on the same companies — an interlock signal (shared founding team, board, or fund). Name-matched, so verify before acting.
| Operator | Shared | Their companies |
|---|---|---|
| Francis J. Harvey | 1 | 2 |
| Gregory D. Williams | 1 | 2 |
| Michael D. Julian | 1 | 1 |
| Thomas D. Allen | 1 | 1 |
| Peter J. Londa | 1 | 1 |
| Douglass D. Campbell | 1 | 1 |
| Laura Formusa | 1 | 1 |
| George D. Reznik | 1 | 1 |
| Harold D. Hankel | 1 | 1 |
| Michael D. Grandis | 1 | 1 |
| Param D. Pawar | 1 | 1 |
| Thomas J. Liston | 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.