People · Operator
Named in public records as an officer, director or promoter · active 2010–2026 · Other, Other Technology, Other Energy, Hospitals and Physicians, Mining & Resources, Climate / Cleantech
| Company | Role | Sector | Stage | Raised · real | Value · est | Tied |
|---|---|---|---|---|---|---|
| Viridis Energy Inc. | — | Other | Series A | $16.4M | $74.2M | 2010 |
| Constant Contact, Inc. | — | Other Technology | Seed | $3.7M | $124.7M | 2010 |
| Purify Fuels, Inc. | — | Other Energy | Pre-Seed | $635K | $3.4M | 2017 |
| Tri-State Surgery Center LLC | — | Hospitals and Physicians | Pre-Seed | $565K | $673K | — |
| First Star Resources Inc. | — | Other | Pre-Seed | $554K | $12.8M | 2011 |
| Bevcanna Enterprises Inc. | — | Other | Pre-Seed | $464K | $383K | 2020 |
| Varlio INC | — | Other Technology | Pre-Seed | $300K | $12.7M | 2019 |
| Sixty North Gold Mining Ltd. | — | Mining & Resources | Pre-Seed | $234K | $433K | 2025 |
| Battery X Metals Inc. | — | Climate / Cleantech | Pre-Seed | $109K | $211K | 2026 |
John Campbell 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 Campbell on the same companies — an interlock signal (shared founding team, board, or fund). Name-matched, so verify before acting.
| Operator | Shared | Their companies |
|---|---|---|
| Robert Gardner | 2 | 4 |
| MARTINO CIAMBRELLI | 2 | 3 |
| Brian R.D. Smith | 2 | 2 |
| DALLAS PRETTY | 2 | 2 |
| HOWARD BLANK | 2 | 2 |
| Greg Smith | 1 | 17 |
| John Carter | 1 | 3 |
| Andriyko Herchak | 1 | 3 |
| Jon Anda | 1 | 2 |
| Gail F. Goodman | 1 | 2 |
| John Carroll | 1 | 2 |
| William S. Kaiser | 1 | 2 |
| Richard Coleman | 1 | 2 |
| Robert P. Badavas | 1 | 2 |
| Patrick Lee Gallagher | 1 | 2 |
| Stefan Olander | 1 | 2 |
| Dave Webb | 1 | 2 |
| Marcello Leone | 1 | 2 |
| Phil Fontaine | 1 | 2 |
| Howard Goldberg | 1 | 2 |
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.