People · Operator
Named in public records as an officer, director or promoter · active 2008–2015 · Other Health Care
| Company | Role | Sector | Stage | Raised · real | Value · est | Tied |
|---|---|---|---|---|---|---|
| Elements Behavioral Health, Inc. | — | Other Health Care | Series C | $165.2M | $1.4B | 2008 |
| Ebh Holding Company, Inc. | — | Other Health Care | Series B | $70.9M | $871.1M | 2012 |
David Sack 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 David Sack on the same companies — an interlock signal (shared founding team, board, or fund). Name-matched, so verify before acting.
| Operator | Shared | Their companies |
|---|---|---|
| Mohamad Makhzoumi | 2 | 10 |
| Nader Naini | 2 | 6 |
| Thomas Cooper | 2 | 6 |
| Richard Whitney | 2 | 5 |
| David Kosloff | 2 | 2 |
| Rob Mahan | 2 | 2 |
| Jennifer Gallagher | 1 | 3 |
| Greg Scott | 1 | 3 |
| Jim Adams | 1 | 2 |
| Chris Karkenny | 1 | 2 |
| Chip Linehan | 1 | 1 |
| David Sack, M.D. | 1 | 1 |
| Keith Arnold | 1 | 1 |
| Vera Appleyard | 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.