People · Operator
Named in public records as an officer, director or promoter · active 2018–2025 · Other Health Care, Other, Software / Tech
| Company | Role | Sector | Stage | Raised · real | Value · est | Tied |
|---|---|---|---|---|---|---|
| BrightInsight, Inc. | — | Other Health Care | Series D+ | $166.1M | $2.0B | 2019 |
| Cellares Corp | — | Other | Series C | $82.0M | $1.2B | 2021 |
| Nucleus Radiopharma, Inc. | — | Other Health Care | Series C | $72.1M | $662.9M | 2022 |
| Rune Labs, Inc. | — | Software / Tech | Series B | $56.6M | $60.1M | 2021 |
| Spell Inc. | — | Other | Series A | $13.3M | $200.7M | 2018 |
Justin Butler 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 Justin Butler on the same companies — an interlock signal (shared founding team, board, or fund). Name-matched, so verify before acting.
| Operator | Shared | Their companies |
|---|---|---|
| David Kim | 1 | 17 |
| Peter Sobiloff | 1 | 13 |
| Vijay Lathi | 1 | 8 |
| Victor Tong | 1 | 6 |
| Tyrell Rivers | 1 | 6 |
| Norman Sharpless | 1 | 2 |
| Bob Michitarian | 1 | 2 |
| John Carlson | 1 | 2 |
| Michael Rossi | 1 | 2 |
| Jordi Parramon | 1 | 2 |
| Chris McDonald | 1 | 2 |
| Florian Haupt | 1 | 1 |
| Omar Kurdi | 1 | 1 |
| Mary Kate Wold | 1 | 1 |
| Manu Nair | 1 | 1 |
| Charles Conroy | 1 | 1 |
| Serkan Piantino | 1 | 1 |
| Ferry Tamtoro | 1 | 1 |
| Dan Goldsmith | 1 | 1 |
| Kal Patel | 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.