People · Operator
Named in public records as an officer, director or promoter · active 2009–2021 · Other, Other Technology
| Company | Role | Sector | Stage | Raised · real | Value · est | Tied |
|---|---|---|---|---|---|---|
| Twitter Inc | — | Other | Series C | $103.4M | $88.6M | 2009 |
| Medium Corp | — | Other Technology | Series B | $31.0M | $587.9M | 2021 |
Evan Williams 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 Evan Williams on the same companies — an interlock signal (shared founding team, board, or fund). Name-matched, so verify before acting.
| Operator | Shared | Their companies |
|---|---|---|
| Peter Fenton | 1 | 16 |
| Fred Wilson | 1 | 15 |
| Bijan Sabet | 1 | 9 |
| Dick Costolo | 1 | 5 |
| Jack Dorsey | 1 | 3 |
| Jason Goldman | 1 | 2 |
| Christopher Isaac Stone | 1 | 2 |
| Colin Isaac Kaepernick | 1 | 1 |
| Teresa Isaac Burlison | 1 | 1 |
| Ben Isaac Horowitz | 1 | 1 |
| Trevor Isaac O'Brien | 1 | 1 |
| Mariam Isaac Naficy | 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.