People · Operator
Named in public records as an officer, director or promoter · active 2012–2026 · Other Health Care, Pharmaceuticals, Biotechnology, Pharma, Other Technology
| Company | Role | Sector | Stage | Raised · real | Value · est | Tied |
|---|---|---|---|---|---|---|
| Relievant MedSystems Inc | — | Other Health Care | Series C | $200.1M | $523.3M | 2015 |
| PhaseBio Pharmaceuticals Inc | — | Pharmaceuticals | Series C | $102.1M | $912.3M | 2018 |
| ChromaCode, Inc. | — | Biotechnology | Series B | $94.2M | $21.4M | 2025 |
| Advanced Cardiac Therapeutics Inc | — | Pharma | Series C | $64.1M | $1.6B | 2014 |
| CV Ingenuity Corp. | — | Other Technology | Series B | $56.3M | $339.2M | 2012 |
| Ventaris Surgical, Inc. | — | Biotechnology | Series B | $30.7M | $114.2M | 2026 |
Justin Klein 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 Justin Klein on the same companies — an interlock signal (shared founding team, board, or fund). Name-matched, so verify before acting.
| Operator | Shared | Their companies |
|---|---|---|
| Ryan Drant | 2 | 24 |
| Duke Rohlen | 2 | 10 |
| John Ryan | 1 | 17 |
| Clay Thorp | 1 | 10 |
| Doug Koo | 1 | 8 |
| Amir Abolfathi | 1 | 8 |
| Robert Thomas | 1 | 8 |
| James C. Blair | 1 | 8 |
| Douglas Koo | 1 | 7 |
| Brent Ahrens | 1 | 7 |
| Ross Jaffe | 1 | 7 |
| Peter Justin Klein | 1 | 7 |
| Tyrell Rivers | 1 | 6 |
| Roy Tanaka | 1 | 6 |
| Mark McDonough | 1 | 5 |
| David Amerson | 1 | 5 |
| Michael Henson | 1 | 5 |
| Peter Klein | 1 | 5 |
| Linda Tufts | 1 | 5 |
| Varun Gupta | 1 | 4 |
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.