People · Operator
Named in public records as an officer, director or promoter · active 2009–2025 · Biotechnology, Other Health Care, Pharma, Pharmaceuticals, Software / Tech, Other
| Company | Role | Sector | Stage | Raised · real | Value · est | Tied |
|---|---|---|---|---|---|---|
| Arsenal Biosciences, Inc. | — | Biotechnology | Series D+ | $579.2M | $3.5B | 2020 |
| RAPT Therapeutics, Inc. | — | Biotechnology | Series D+ | $317.0M | $1.4B | 2016 |
| Practice Fusion Inc | — | Other Health Care | Series C | $222.5M | $57.2M | 2013 |
| Tmunity Therapeutics, Inc. | — | Biotechnology | Series C | $175.0M | $3.1B | 2019 |
| Sagimet Biosciences Inc. | — | Biotechnology | Series C | $166.6M | $2.4B | 2009 |
| Star Therapeutics LLC | — | Pharma | Series D+ | $125.0M | $935.3M | 2025 |
| iPierian, Inc. | — | Pharmaceuticals | Series B | $87.3M | $985.1M | 2009 |
| Auxogyn Inc | — | Other Health Care | Series B | $73.1M | $327.3M | 2012 |
| Vera Therapeutics, Inc. | — | Biotechnology | Series C | $70.7M | $2.6B | 2020 |
| Latigo Biotherapeutics, Inc. | — | Biotechnology | Series C | $50.0M | $357.5M | 2025 |
| Cell Design Labs, Inc. | — | Biotechnology | Series B | $26.9M | $158.8M | 2016 |
| Breathe Technologies Inc | — | Software / Tech | Series A | $20.0M | $353.7M | 2017 |
| Breathe Technologies, Inc. | — | Biotechnology | Series A | $14.8M | $225.9M | 2017 |
| Kinsa Inc. | — | Other | Series A | $10.4M | $120.1M | 2016 |
| Hx Diagnostics Inc | — | Other Health Care | Series A | $4.7M | $93.8M | 2009 |
Beth Seidenberg 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 Beth Seidenberg on the same companies — an interlock signal (shared founding team, board, or fund). Name-matched, so verify before acting.
| Operator | Shared | Their companies |
|---|---|---|
| Brook Byers | 3 | 13 |
| Fred Cohen | 2 | 12 |
| Sean Parker | 2 | 10 |
| Maha Katabi | 2 | 6 |
| John Miclot | 2 | 5 |
| Nancy Stagliano | 2 | 5 |
| Matthew Fust | 2 | 4 |
| Lawrence Mastrovich | 2 | 3 |
| Ted Huber | 2 | 2 |
| Carl Gordon | 1 | 24 |
| John Walker | 1 | 17 |
| Richard Lim | 1 | 14 |
| Corey Goodman | 1 | 13 |
| Rebecca Lynn | 1 | 12 |
| Mark Goines | 1 | 11 |
| Patrick Enright | 1 | 10 |
| David Goeddel | 1 | 10 |
| Patrick Gray | 1 | 10 |
| David Mott | 1 | 9 |
| Risa Stack | 1 | 9 |
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.