People · Operator
Named in public records as an officer, director or promoter · active 2019–2019 · Other Health Care
| Company | Role | Sector | Stage | Raised · real | Value · est | Tied |
|---|---|---|---|---|---|---|
| HeartBeam, Inc. | — | Other Health Care | Pre-Seed | $200K | $6.2M | 2019 |
Willem Pieter Elfrink 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 Willem Pieter Elfrink on the same companies — an interlock signal (shared founding team, board, or fund). Name-matched, so verify before acting.
| Operator | Shared | Their companies |
|---|---|---|
| Branislav Vajdic | 1 | 1 |
| Rick Brounstein | 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.