People · Operator
Named in public records as an officer, director or promoter · active 2021–2021 · Environmental Services
| Company | Role | Sector | Stage | Raised · real | Value · est | Tied |
|---|---|---|---|---|---|---|
| Summit Carbon Holdings, LLC | — | Environmental Services | Growth/Late | $1.1B | $21.7B | 2021 |
Jonathan B. Garfinkel 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 Jonathan B. Garfinkel on the same companies — an interlock signal (shared founding team, board, or fund). Name-matched, so verify before acting.
| Operator | Shared | Their companies |
|---|---|---|
| Bruce Rastetter | 1 | 13 |
| Justin Kirchhoff | 1 | 7 |
| William B. Berry | 1 | 2 |
| Jeong B. Joon Yu | 1 | 1 |
| Jonathan Probst | 1 | 1 |
| Mike B. Stone | 1 | 1 |
| Harold G. Hamm | 1 | 1 |
| Emil B. Henry | 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.