People · Operator
Named in public records as an officer, director or promoter · active 2013–2013 · Other Health Care
| Company | Role | Sector | Stage | Raised · real | Value · est | Tied |
|---|---|---|---|---|---|---|
| ITC Nexus Holding Company, Inc. | — | Other Health Care | Series C | $191.8M | $353.7M | 2013 |
John Sperzel 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 Sperzel on the same companies — an interlock signal (shared founding team, board, or fund). Name-matched, so verify before acting.
| Operator | Shared | Their companies |
|---|---|---|
| Risa Stack | 1 | 9 |
| Noah Knauf | 1 | 9 |
| Richard Wallman | 1 | 4 |
| William Gerber | 1 | 3 |
| Elizabeth Weatherman | 1 | 3 |
| Joseph Nemmers | 1 | 3 |
| James Merselis | 1 | 3 |
| Bess Weatherman | 1 | 2 |
| Tony Arnerich | 1 | 2 |
| Gregory Tibbitts | 1 | 2 |
| Scott Cramer | 1 | 2 |
| Tom Whalen | 1 | 1 |
| Brett Giffin | 1 | 1 |
| Matt Bastardi | 1 | 1 |
| Frank La Duca | 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.