John Hamma is named as a lobbyist on federal disclosure filings for 5 clients through Clark Street Associates. The most recent filing naming them posted in May 2026. Issues reported include Budget/Appropriations, Defense and Agriculture.
| Client | Registrant | Latest | Issues |
|---|---|---|---|
| CELESTIAL.AI | CLARK STREET ASSOCIATES | Q1 2026 | Defense, Budget/Appropriations |
| QORVO | CLARK STREET ASSOCIATES | Q1 2026 | Defense, Budget/Appropriations |
| VULCANFORMS, INC. | CLARK STREET ASSOCIATES | Q4 2025 | Defense, Budget/Appropriations |
| GRAYMATTER ROBOTICS INC. | CLARK STREET ASSOCIATES | Q4 2025 | Defense, Budget/Appropriations |
| AIGEN INC. | CLARK STREET ASSOCIATES | Q2 2025 | Agriculture, Budget/Appropriations |
| Year | Clients | Registrants |
|---|---|---|
| 2026 | 2 | 1 |
| 2025 | 5 | 1 |
Pay is not disclosed for individual lobbyists. Filings do not confirm that records with the same name are one person, so this page may combine people who share the name John Hamma. See the Capitol Clarity rankings and method.