People · Operator
Named in public records as an officer, director or promoter · active 2018–2018 · Other
| Company | Role | Sector | Stage | Raised · real | Value · est | Tied |
|---|---|---|---|---|---|---|
| Altum Investments, Inc. | — | Other | Series B | $20.3M | $54.3M | 2018 |
Mark Grindeland 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 Grindeland on the same companies — an interlock signal (shared founding team, board, or fund). Name-matched, so verify before acting.
| Operator | Shared | Their companies |
|---|---|---|
| Peter Flint | 1 | 14 |
| David Rosenthal | 1 | 4 |
| Lisa McClung | 1 | 1 |
| Jim Flanigan | 1 | 1 |
| Elizabeth Cooke | 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.