People · Operator
Named in public records as an officer, director or promoter · active 2013–2020 · Healthtech, Other Technology, Business Services
| Company | Role | Sector | Stage | Raised · real | Value · est | Tied |
|---|---|---|---|---|---|---|
| Outset Medical, Inc. | — | Healthtech | Series D+ | $395.4M | $36.2M | 2015 |
| PayPaul, LLC | — | Other Technology | Seed | $2.0M | $61.6M | 2020 |
| Northern Reliability, Inc. | — | Business Services | Pre-Seed | $1.6M | $15.8M | 2013 |
Jeff Mack 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 Jeff Mack on the same companies — an interlock signal (shared founding team, board, or fund). Name-matched, so verify before acting.
| Operator | Shared | Their companies |
|---|---|---|
| Paul Brown | 1 | 12 |
| Noah Knauf | 1 | 9 |
| Michael Baker | 1 | 8 |
| Tony Chou | 1 | 7 |
| Sean Carney | 1 | 6 |
| Thomas Roberts | 1 | 6 |
| Elizabeth H. Weatherman | 1 | 6 |
| In Seon Hwang | 1 | 5 |
| D. Keith Grossman | 1 | 5 |
| Thomas J. Carella | 1 | 4 |
| Jeffrey Mack | 1 | 3 |
| Dale Jones | 1 | 3 |
| Keith Grossman | 1 | 3 |
| Patrick T Hackett | 1 | 2 |
| Bess Weatherman | 1 | 2 |
| Jay Bellows | 1 | 2 |
| Leslie Trigg | 1 | 1 |
| Rohit Vishnoi | 1 | 1 |
| Scott Bartos | 1 | 1 |
| Joseph J. Rasmussen | 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.