People · Operator
Named in public records as an officer, director or promoter · active 2010–2026 · Other, Other Technology, Manufacturing, Other Health Care
| Company | Role | Sector | Stage | Raised · real | Value · est | Tied |
|---|---|---|---|---|---|---|
| IntegriCo Composites, Inc. | — | Other | Series A | $20.8M | $90.8M | 2013 |
| HSP International, Inc. | — | Other | Series A | $20.3M | $120.8M | 2013 |
| Oversight Systems, Inc. | — | Other Technology | Series A | $16.0M | $201.9M | 2012 |
| United Rail, Inc. | — | Other Technology | Seed | $6.1M | $2.6M | 2013 |
| PatientOne, Inc. | — | Other | Seed | $2.1M | $4.2M | 2019 |
| IngMar Medical Holdings, LLC | — | Manufacturing | Seed | $1.5M | $18.9M | 2018 |
| wrkr solutions, inc. | — | Other Technology | Seed | $1.4M | $48.1M | 2016 |
| 3Dicon Corp | — | Other | Pre-Seed | $838K | $4.5M | 2013 |
| DoseMatters Solutions LLC | — | Other Health Care | Pre-Seed | $610K | $1.1M | 2026 |
| Gaia Metrics, Inc. | — | Other Technology | Pre-Seed | $600K | $4.2M | 2010 |
John O'Connor 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 John O'Connor on the same companies — an interlock signal (shared founding team, board, or fund). Name-matched, so verify before acting.
| Operator | Shared | Their companies |
|---|---|---|
| William A. Halter | 1 | 18 |
| Jeffrey Samberg | 1 | 14 |
| Benedict Rocchio | 1 | 10 |
| James Green | 1 | 9 |
| John Mandile | 1 | 7 |
| Chris Hollenbeck | 1 | 7 |
| Paul Flanagan | 1 | 6 |
| Thomas Noonan | 1 | 5 |
| Matthew McCooe | 1 | 5 |
| Jeff Samberg | 1 | 5 |
| Michael Duffy | 1 | 4 |
| Victor F. Keen | 1 | 3 |
| Michael Barron | 1 | 3 |
| Gilbert Lamphere | 1 | 3 |
| Ronald Robinson | 1 | 2 |
| Daniel Lyons | 1 | 2 |
| LAWRENCE M. HARDING | 1 | 2 |
| Matt McCooe | 1 | 2 |
| John Marino | 1 | 2 |
| John A. O'Connor | 1 | 2 |
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.