Michael S Callahan is named as a lobbyist on federal disclosure filings for 3 clients through Ccmsc Corporation. The most recent filing naming them posted in October 2026. Issues reported include Energy/Nuclear.
| Client | Registrant | Latest | Issues |
|---|---|---|---|
| GOVERNMENTAL STRATEGIES INC (ON BEHALF OF WASTE CONTROL SPECIALISTS | CCMSC CORPORATION | Q3 2026 | Energy/Nuclear |
| GOVERNMENTAL STRATEGIES INC (ON BEHALF OF THE DECOMMISSIONING PLANT COALITION) | CCMSC CORPORATION | Q3 2026 | Energy/Nuclear |
| GOVERNMENTAL STRATEGIES INC (ON BEHALF OF ORANOUSA LLC) | CCMSC CORPORATION | Q2 2026 | Energy/Nuclear |
| Year | Clients | Registrants |
|---|---|---|
| 2026 | 3 | 1 |
| 2025 | 3 | 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 Michael S Callahan. See the Capitol Clarity rankings and method.