People · Operator
Named in public records as an officer, director or promoter · active 2021–2025 · Energy
| Company | Role | Sector | Stage | Raised · real | Value · est | Tied |
|---|---|---|---|---|---|---|
| Johnson Energy Storage, Inc. | — | Energy | Series A | $14.5M | $3.4M | 2021 |
Mack Bertram Wilbourn 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 Mack Bertram Wilbourn on the same companies — an interlock signal (shared founding team, board, or fund). Name-matched, so verify before acting.
| Operator | Shared | Their companies |
|---|---|---|
| U Bertram Ellis | 1 | 5 |
| Michael S McQuary | 1 | 3 |
| Lonnie G. Johnson | 1 | 2 |
| U. Betram Ellis | 1 | 1 |
| Clyde Bertram Tuggle | 1 | 1 |
| Brandon Bertram Martin | 1 | 1 |
| Mack Betram Wilbourn | 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.