People · Operator
Named in public records as an officer, director or promoter · active 2018–2025 · Software / Tech, Business Services
| Company | Role | Sector | Stage | Raised · real | Value · est | Tied |
|---|---|---|---|---|---|---|
| Direct Digital Holdings, Inc. | — | Software / Tech | Series B | $25.0M | $126.9M | 2025 |
| Nue IO, Inc. | — | Software / Tech | Series B | $20.0M | $127.3M | 2024 |
| Eka Solutions, Inc. | — | Business Services | Series A | $15.8M | $2.9M | 2018 |
Mark Walker 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 Mark Walker on the same companies — an interlock signal (shared founding team, board, or fund). Name-matched, so verify before acting.
| Operator | Shared | Their companies |
|---|---|---|
| Dinesh Patel | 1 | 13 |
| Keith Smith | 1 | 6 |
| David Osborne | 1 | 4 |
| Robert Antoniades | 1 | 3 |
| Alex Millar | 1 | 3 |
| Karamdeep Nijjar | 1 | 2 |
| Diana P. Diaz | 1 | 1 |
| Richard R. Cohen | 1 | 1 |
| Anu P. Pillai | 1 | 1 |
| Mistelle R. Locke | 1 | 1 |
| Tinglan Kung | 1 | 1 |
| Brian Keare | 1 | 1 |
| Jagjit Singh | 1 | 1 |
| Rajnish Tahiliani | 1 | 1 |
| DARREL WILSON | 1 | 1 |
| Maria Vilchez Lowrey | 1 | 1 |
| Antoinette R. Leatherberry | 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.