Sara K. Hagan is named as a lobbyist on federal disclosure filings for 14 clients through Invariant LLC. The most recent filing naming them posted in October 2026. Issues reported include Defense, Energy/Nuclear, Small Business and Government Issues.
Filers must list covered executive or legislative branch positions held. As filed:
| Client | Registrant | Latest | Issues |
|---|---|---|---|
| ARMADA SYSTEMS, INC. | INVARIANT LLC | Q3 2026 | Defense |
| HADRIAN AUTOMATION | INVARIANT LLC | Q3 2026 | Defense |
| MATSYS, INC. | INVARIANT LLC | Q3 2026 | Defense |
| GENERAL MATTER INC | INVARIANT LLC | Q3 2026 | Defense, Energy/Nuclear |
| POPLICUS INC. DBA AIR | INVARIANT LLC | Q3 2026 | Defense |
| MACH INDUSTRIES INC. | INVARIANT LLC | Q3 2026 | Defense |
| MERLIN LABS | INVARIANT LLC | Q3 2026 | Defense |
| COOK INLET REGION INCORPORATED (CIRI) | INVARIANT LLC | Q3 2026 | Defense, Small Business |
| ADVANCED MANUFACTURING COMPANY OF AMERICA, INC. (AMCA) | INVARIANT LLC | Q2 2026 | Defense |
| VALTHOS INC. | INVARIANT LLC | Q2 2026 | Defense |
| CORE POWER (US) INC. | INVARIANT LLC | Q1 2026 | Defense |
| MATTERMOST, INC. | INVARIANT LLC | Q1 2026 | Defense, Government Issues |
| METREA MANAGEMENT LLC | INVARIANT LLC | Q3 2025 | Defense |
| LILT | INVARIANT LLC | Q3 2025 | Defense |
| Year | Clients | Registrants |
|---|---|---|
| 2026 | 12 | 1 |
| 2025 | 7 | 1 |
| Year | Items | Total |
|---|---|---|
| 2026 | 4 | $2K |
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 Sara K. Hagan. See the Capitol Clarity rankings and method.