John Patrick Koehn is named as a lobbyist on federal disclosure filings for 1 client through Northrop Grumman Corporation. The most recent filing naming them posted in October 2026. Issues reported include Defense, Aerospace, Taxation/Internal Revenue Code and Budget/Appropriations.
| Client | Registrant | Latest | Issues |
|---|---|---|---|
| NORTHROP GRUMMAN CORPORATION | NORTHROP GRUMMAN CORPORATION | Q3 2026 | Budget/Appropriations, Taxation/Internal Revenue Code, Aerospace |
| Year | Clients | Registrants |
|---|---|---|
| 2026 | 1 | 1 |
| 2025 | 1 | 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 Patrick Koehn. See the Capitol Clarity rankings and method.