People · Operator
Named in public records as an officer, director or promoter · active 2015–2015 · Manufacturing
| Company | Role | Sector | Stage | Raised · real | Value · est | Tied |
|---|---|---|---|---|---|---|
| SiGNa Chemistry, Inc. | — | Manufacturing | Series B | $24.5M | $268.8M | 2015 |
Jeffrey Seidel 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 Jeffrey Seidel on the same companies — an interlock signal (shared founding team, board, or fund). Name-matched, so verify before acting.
| Operator | Shared | Their companies |
|---|---|---|
| Nael Kassar | 1 | 11 |
| Michael Lefenfeld | 1 | 2 |
| Peter A. Cash | 1 | 1 |
| Mark A. Lester | 1 | 1 |
| Katherine A. Carney | 1 | 1 |
| Paul A. Krumrine | 1 | 1 |
| Mack A. Knobbe | 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.