People · Operator
Named in public records as an officer, director or promoter · active 2019–2025 · Other Technology, Software / Tech
| Company | Role | Sector | Stage | Raised · real | Value · est | Tied |
|---|---|---|---|---|---|---|
| Datch Inc. | — | Other Technology | Series A | $15.5M | $154.3M | 2019 |
| Parametrix Group Holdings, Inc. | — | Other Technology | Series A | $14.3M | $54.0M | 2024 |
| Nuclearn Inc. | — | Other Technology | Series A | $13.1M | $38.1M | 2025 |
| Axiom Cloud Inc. | — | Software / Tech | Series A | $11.9M | $133.4M | 2022 |
Ernst 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 Ernst Sack on the same companies — an interlock signal (shared founding team, board, or fund). Name-matched, so verify before acting.
| Operator | Shared | Their companies |
|---|---|---|
| William Clark | 1 | 12 |
| JACK FUCHS | 1 | 6 |
| AMRIT ROBBINS | 1 | 2 |
| Jessica Pacheco | 1 | 1 |
| Hank Hattemer | 1 | 1 |
| Hayley Nystrom | 1 | 1 |
| Hank Hattemar | 1 | 1 |
| NIKHIL SARALKAR | 1 | 1 |
| ERNST STACK | 1 | 1 |
| Ben Purcell | 1 | 1 |
| Mark Fosdike | 1 | 1 |
| Aric Thorn | 1 | 1 |
| Jerrold Vincent | 1 | 1 |
| Bradley Fox | 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.