People · Operator
Named in public records as an officer, director or promoter · active 2009–2009 · Other Energy
| Company | Role | Sector | Stage | Raised · real | Value · est | Tied |
|---|---|---|---|---|---|---|
| UP Holdings Inc. | — | Other Energy | Series B | $27.2M | $316.0M | 2009 |
Charles Gwirtsman 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 Charles Gwirtsman on the same companies — an interlock signal (shared founding team, board, or fund). Name-matched, so verify before acting.
| Operator | Shared | Their companies |
|---|---|---|
| Eric Hayes | 1 | 3 |
| James Alexander | 1 | 3 |
| John Holmlund | 1 | 2 |
| Timothy J. Coughlon | 1 | 2 |
| Charles A. Hamilton | 1 | 2 |
| Howard S. Lipshutz | 1 | 2 |
| Richard Spears | 1 | 1 |
| Felipe Gonzalez | 1 | 1 |
| Jerry Mayfield | 1 | 1 |
| Carl Shelburne, Jr. | 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.