People · Operator
Named in public records as an officer, director or promoter · active 2010–2017 · Other Technology, Other Health Care, Other
| Company | Role | Sector | Stage | Raised · real | Value · est | Tied |
|---|---|---|---|---|---|---|
| Redseal, Inc. | — | Other Technology | Series A | $45.6M | $27.0M | 2015 |
| Socialvibe, Inc | — | Other Technology | Series B | $39.6M | $609.1M | 2010 |
| Casual Collective Inc | — | Other Technology | Series B | $17.5M | $533.0M | 2011 |
| Zephyr Health, Inc. | — | Other Health Care | Series B | $17.5M | $387.2M | 2015 |
| Devicescape Software, Inc | — | Other Technology | Series A | $11.6M | $97.1M | 2011 |
| Mimosa Systems Inc | — | Other Technology | Series A | $10.6M | $50.4M | 2010 |
| Attributor Corp | — | Other | Seed | $5.7M | $52.5M | 2011 |
Joseph Horowitz 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 Joseph Horowitz on the same companies — an interlock signal (shared founding team, board, or fund). Name-matched, so verify before acting.
| Operator | Shared | Their companies |
|---|---|---|
| Paul Sallaberry | 2 | 5 |
| Jeremy Liew | 1 | 18 |
| Sumant Mandal | 1 | 13 |
| Brook Byers | 1 | 13 |
| GREG MARTIN | 1 | 12 |
| Navin Chaddha | 1 | 12 |
| Patricia Nakache | 1 | 11 |
| Ray Rothrock | 1 | 10 |
| Nick Sturiale | 1 | 10 |
| Robert Young | 1 | 9 |
| Vivek Mehra | 1 | 8 |
| Kevin Mosher | 1 | 6 |
| Joe Marchese | 1 | 6 |
| Jay Samit | 1 | 6 |
| JOHN JOHNSTON | 1 | 5 |
| Pete Sinclair | 1 | 5 |
| Greg Gretsch | 1 | 5 |
| Kurt Johnson | 1 | 5 |
| DAVID FRASER | 1 | 4 |
| Mark Ashida | 1 | 4 |
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.