People · Operator
Named in public records as an officer, director or promoter · active 2021–2025 · Manufacturing, Other
| Company | Role | Sector | Stage | Raised · real | Value · est | Tied |
|---|---|---|---|---|---|---|
| Three Rivers VC Group, LLC | — | Manufacturing | Series B | $19.5M | $169.6M | 2021 |
| Midwest Tubular Group LLC | — | Manufacturing | Series A | $11.5M | $14.5M | 2024 |
| Sanford Aluminum Group, LLC | — | Manufacturing | Series A | $11.0M | $72.8M | 2022 |
| Three Rivers Preferred Group LLC | — | Manufacturing | Seed | $4.0M | $29.6M | 2022 |
| Pittsburgh Extrusion Group LLC | — | Other | Seed | $2.6M | $35.4M | 2021 |
Mark Sherwin 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 Sherwin on the same companies — an interlock signal (shared founding team, board, or fund). Name-matched, so verify before acting.
| Operator | Shared | Their companies |
|---|---|---|
| Mark McDonel | 5 | 6 |
| Matt Homme | 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.