People · Operator
Named in public records as an officer, director or promoter · active 2009–2024 · Other Technology, Edtech
| Company | Role | Sector | Stage | Raised · real | Value · est | Tied |
|---|---|---|---|---|---|---|
| Market Science, Inc. | — | Other Technology | Series A | $13.7M | $168.9M | 2009 |
| MeshNet, Inc. | — | Other Technology | Seed | $3.0M | $4.6M | 2020 |
| Mindprint Learning, Inc. | — | Edtech | Seed | $1.7M | $10.5M | 2023 |
John Martinson 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 Martinson on the same companies — an interlock signal (shared founding team, board, or fund). Name-matched, so verify before acting.
| Operator | Shared | Their companies |
|---|---|---|
| John Ryan | 1 | 17 |
| Eric Weinstein | 1 | 2 |
| Mark Visco | 1 | 1 |
| Angela Visco | 1 | 1 |
| Mark Visco, Jr. | 1 | 1 |
| Nancy Weinstein | 1 | 1 |
| Eric Cantor | 1 | 1 |
| Gregory Mistele | 1 | 1 |
| Steven Wray | 1 | 1 |
| Ron Cacciola | 1 | 1 |
| Vincent T Dolan | 1 | 1 |
| Matthew C Reichert | 1 | 1 |
| John T Ryan | 1 | 1 |
| Dominic Visco | 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.