People · Operator
Named in public records as an officer, director or promoter · active 2009–2021 · Manufacturing, Other, Retailing
| Company | Role | Sector | Stage | Raised · real | Value · est | Tied |
|---|---|---|---|---|---|---|
| Quantum Holdings LLC | — | Manufacturing | Seed | $3.6M | $6.2M | 2015 |
| Trade Service Holdings, Inc. | — | Other | Seed | $1.0M | $19.1M | 2009 |
| Airnoggin, Inc. | — | Retailing | Pre-Seed | $240K | $1.4M | 2021 |
Jeffrey Klein 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 Jeffrey Klein on the same companies — an interlock signal (shared founding team, board, or fund). Name-matched, so verify before acting.
| Operator | Shared | Their companies |
|---|---|---|
| Joshua Lamstein | 1 | 5 |
| Erik Baker | 1 | 2 |
| Gordon Gardiner | 1 | 2 |
| Bill Lewis | 1 | 1 |
| Laurence R. Klein | 1 | 1 |
| Robert G. Friedenrich | 1 | 1 |
| David C. Blatte | 1 | 1 |
| Jim Milgard Jr. | 1 | 1 |
| Steven Borgardt | 1 | 1 |
| Anthony Dubreville | 1 | 1 |
| Peter Nitze | 1 | 1 |
| Bill Douglass | 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.