People · Operator
Named in public records as an officer, director or promoter · active 2010–2024 · Other Technology, Biotechnology, Other Health Care
| Company | Role | Sector | Stage | Raised · real | Value · est | Tied |
|---|---|---|---|---|---|---|
| T2 Biosystems, Inc. | — | Other Technology | Series D+ | $477.6M | $1.3B | 2010 |
| Glympse Bio, Inc. | — | Biotechnology | Series C | $114.0M | $325.1M | 2023 |
| Cytrellis Biosystems, Inc. | — | Other Health Care | Series C | $82.7M | $182.1M | 2020 |
| Orca Systems, Inc. | — | Other Technology | Series A | $8.0M | $138.7M | 2010 |
| BioPorto A/S | — | Other Health Care | Pre-Seed | $110K | $774K | 2023 |
John McDonough 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 McDonough on the same companies — an interlock signal (shared founding team, board, or fund). Name-matched, so verify before acting.
| Operator | Shared | Their companies |
|---|---|---|
| Robert Langer | 2 | 36 |
| Michael Greeley | 1 | 15 |
| Amy Schulman | 1 | 11 |
| Michael Singer | 1 | 11 |
| George Zachary | 1 | 9 |
| Alan Crane | 1 | 9 |
| Theresia Gouw | 1 | 8 |
| Alexandra Cantley | 1 | 8 |
| Stanley Lapidus | 1 | 7 |
| Harry Wilcox | 1 | 6 |
| Diane Marcou | 1 | 5 |
| Adrian M. Jones | 1 | 5 |
| Michael L Peterson | 1 | 4 |
| Michael Cima | 1 | 4 |
| Raghuveer Mendu | 1 | 3 |
| Sirshendu Roopom Banerjee | 1 | 3 |
| R. ROX ANDERSON | 1 | 3 |
| Keith L. Crandell | 1 | 3 |
| Stacy Feld | 1 | 2 |
| Thomas Lowery | 1 | 2 |
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.