A person may appear in more than one office. A confirmation date is not proof someone still serves.
| Record | |||
|---|---|---|---|
| Peter Hegseth | Secretary of Defense | Jan 24, 2025 | Senate record |
| Michael Payne | Director of Cost Assessment and Program Evaluation, Department of Defense | Dec 18, 2025 | Senate record |
| Amy Henninger | Director of Operational Test and Evaluation, Department of Defense | Dec 18, 2025 | Senate record |
| Stephen Feinberg | Deputy Secretary of Defense | Mar 14, 2025 | Senate record |
| Roger Mason | Director of the National Reconnaissance Office | Aug 7 | Senate record |
| Troy Meink | Secretary of the Air Force | May 13, 2025 | Senate record |
| John Phelan | Secretary of the Navy | Mar 24, 2025 | Senate record |
| Daniel Driscoll | Secretary of the Army | Feb 25, 2025 | Senate record |
| Erich Hernandez-Baquero | an Assistant Secretary of the Air Force | Aug 7 | Senate record |
| Jules Hurst III | Under Secretary of Defense (Comptroller) | Aug 7 | Senate record |
| Mark Ditlevson | an Assistant Secretary of Defense | May 18 | Senate record |
| James Mazol | a Deputy Under Secretary of Defense | Dec 18, 2025 | Senate record |
| Brendan Rogers | an Assistant Secretary of the Navy | Dec 18, 2025 | Senate record |
| Kirsten Davies | Chief Information Officer of the Department of Defense | Dec 18, 2025 | Senate record |
| Michael Powers | Deputy Under Secretary of Defense | Dec 18, 2025 | Senate record |
| William Lane III | General Counsel of the Department of the Air Force | Dec 18, 2025 | Senate record |
| Charles Young III | General Counsel of the Department of the Army | Dec 18, 2025 | Senate record |
| David Denton, Jr. | General Counsel of the Department of the Navy | Dec 18, 2025 | Senate record |
| Platte Moring | Inspector General, Department of Defense | Dec 18, 2025 | Senate record |
| Marc Andersen | an Assistant Secretary of the Army | Oct 7, 2025 | Senate record |
| Hung Cao | Under Secretary of the Navy | Oct 1, 2025 | Senate record |
| Michael Obadal | Under Secretary of the Army | Sep 18, 2025 | Senate record |
| Earl Matthews | General Counsel of the Department of Defense | Jul 29, 2025 | Senate record |
| Matthew Lohmeier | Under Secretary of the Air Force | Jul 24, 2025 | Senate record |
| Bradley Hansell | Under Secretary of Defense for Intelligence and Security | Jul 22, 2025 | Senate record |
| Anthony Tata | Under Secretary of Defense for Personnel and Readiness | Jul 15, 2025 | Senate record |
| Michael Duffey | Under Secretary of Defense for Acquisition and Sustainment | Jun 3, 2025 | Senate record |
| Emil Michael | Under Secretary of Defense for Research and Engineering | May 14, 2025 | Senate record |
| Elbridge Colby | Under Secretary of Defense for Policy | Apr 8, 2025 | Senate record |
