People · Operator
Named in public records as an officer, director or promoter · active 2010–2017 · Other Technology
| Company | Role | Sector | Stage | Raised · real | Value · est | Tied |
|---|---|---|---|---|---|---|
| Demandbase, Inc. | — | Other Technology | Series C | $108.2M | $1.5B | 2015 |
| Jumptap Inc | — | Other Technology | Series B | $47.5M | $838.0M | 2011 |
| Quantifind Inc | — | Other Technology | Series B | $34.9M | $915.2M | 2016 |
| Apptera Inc | — | Other Technology | Series A | $10.0M | $277.4M | 2010 |
David Karnstedt 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 David Karnstedt on the same companies — an interlock signal (shared founding team, board, or fund). Name-matched, so verify before acting.
| Operator | Shared | Their companies |
|---|---|---|
| John Simon | 1 | 11 |
| Stacey Bishop | 1 | 9 |
| Anthony Lee | 1 | 8 |
| GREGORY SANDS | 1 | 7 |
| George Bell | 1 | 7 |
| Matthew McCall | 1 | 7 |
| John Walecka | 1 | 6 |
| Scott Johnston | 1 | 6 |
| Edward Gilhuly | 1 | 6 |
| Mary Coleman | 1 | 6 |
| Carl Showalter | 1 | 5 |
| John Stockton | 1 | 5 |
| Scott Raney | 1 | 5 |
| Denis Barrier | 1 | 5 |
| Bryan Morris | 1 | 4 |
| ROBERT SPINNER | 1 | 4 |
| Henry Vogel | 1 | 4 |
| Frank Verdecanna | 1 | 4 |
| Bob Spinner | 1 | 3 |
| Gary Rubinoff | 1 | 3 |
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.