People · Operator
Named in public records as an officer, director or promoter · active 2023–2023 · Other Energy
| Company | Role | Sector | Stage | Raised · real | Value · est | Tied |
|---|---|---|---|---|---|---|
| Hart Energy Publishing LLC | — | Other Energy | Series A | $11.8M | $26.2M | 2023 |
John Hartig 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 John Hartig on the same companies — an interlock signal (shared founding team, board, or fund). Name-matched, so verify before acting.
| Operator | Shared | Their companies |
|---|---|---|
| Robert Teufel | 1 | 3 |
| Michael Perlis | 1 | 3 |
| E. Alexander Wiegers | 1 | 2 |
| George A. Wiegers | 1 | 2 |
| Harold Logan | 1 | 2 |
| George Green | 1 | 1 |
| Chris Alexander Arndt | 1 | 1 |
| Chris A. Arndt | 1 | 1 |
| Richard Eichler | 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.