| Name | Family | Manufacturer | Maiden Flight Date | Active | Reusable | Launch Count | Length (m) | Max Diameter (m) | LEO Capacity (kg) | GTO Capacity (kg) | Thrust at Liftoff (kN) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Atlas Agena A | Atlas | Convair | 02/26/1960 | ✘ | ✘ | 3 | 36.0 | 3.0 | 1000.0 | — | 1340.0 |
| Atlas Agena B | Atlas | United States Air Force | 01/31/1961 | ✘ | ✘ | 29 | 20.27 | 3.05 | — | — | 363.0 |
| Atlas Agena D | Atlas | Convair | 07/12/1963 | ✘ | ✘ | 15 | 36.0 | 3.0 | 1000.0 | — | 1340.0 |
| Atlas D | Atlas, Atlas D | Convair | 04/14/1959 | ✘ | ✘ | 9 | 25.15 | 3.0 | 1400.0 | — | 1880.0 |
| Atlas F/Agena D | Atlas, Atlas F | Convair | 06/27/1978 | ✘ | ✘ | 1 | — | — | — | — | — |
| Atlas SLV-3A Agena D | Atlas, Atlas D | Convair | 03/04/1968 | ✘ | ✘ | 12 | 36.0 | 3.0 | 1000.0 | — | 1340.0 |
| Atlas SLV-3 Agena B | Atlas, Atlas D | Convair | 06/07/1966 | ✘ | ✘ | 1 | 36.0 | 3.0 | 1000.0 | — | 1340.0 |
| Atlas SLV-3 Agena D | Atlas, Atlas D | Convair | 08/14/1964 | ✘ | ✘ | 48 | 36.0 | 3.0 | 1000.0 | — | 1340.0 |
| Thorad SLV-2G Agena D | Thor, Thorad-Agena | McDonnell Douglas | 08/09/1966 | ✘ | ✘ | 30 | 32.9 | 2.44 | — | — | 1444.0 |
| Thorad SLV-2H Agena D | Thor, Thorad-Agena | McDonnell Douglas | 06/05/1969 | ✘ | ✘ | 13 | 34.0 | 2.44 | — | — | 1571.0 |
| Thor Agena A | Thor, Thor-Agena | McDonnell Douglas | 01/21/1959 | ✘ | ✘ | 15 | 28.0 | 2.44 | 250.0 | — | 667.0 |
| Thor Agena D | Thor, Thor-Agena | McDonnell Douglas | 06/28/1962 | ✘ | ✘ | 13 | 31.0 | 2.44 | — | — | 667.0 |
| Thor DM-21 Agena-B | Thor, Thor-Agena | United States Air Force | 10/26/1960 | ✘ | ✘ | 40 | — | — | — | — | — |
| Thor SLV-2A Agena B | Thor, Thor-Agena | McDonnell Douglas | 06/29/1963 | ✘ | ✘ | 2 | 31.0 | 2.44 | — | — | 1571.0 |
| Thor SLV-2A Agena D | Thor, Thor-Agena | McDonnell Douglas | 02/28/1963 | ✘ | ✘ | 61 | 31.0 | 2.44 | — | — | 1571.0 |
| Thor SLV-2 Agena B | Thor, Thor-Agena | McDonnell Douglas | 01/25/1964 | ✘ | ✘ | 3 | 27.2 | 2.44 | 400.0 | — | 756.0 |
| Thor SLV-2 Agena D | Thor, Thor-Agena | McDonnell Douglas | 05/31/1967 | ✘ | ✘ | 8 | 27.2 | 2.44 | — | — | 756.0 |
| Titan 23B | Titan, Titan III, Titan IIIB | Lockheed Martin | 08/23/1969 | ✘ | ✘ | 9 | 45.0 | 3.05 | 3000.0 | — | 2300.0 |
| Titan 24B | Titan, Titan III, Titan IIIB | Lockheed Martin | 08/12/1971 | ✘ | ✘ | 23 | 45.0 | 3.05 | 3000.0 | — | 2410.0 |
| Titan 33B | Titan, Titan III, Titan IIIB | Lockheed Martin | 03/21/1971 | ✘ | ✘ | 3 | 45.0 | 3.05 | 3000.0 | — | 2300.0 |
| Titan 34B | Titan, Titan III, Titan IIIB | Lockheed Martin | 03/10/1975 | ✘ | ✘ | 11 | 48.0 | 3.05 | 3500.0 | — | 1997.0 |
| Titan IIIB | Titan, Titan III | Lockheed Martin | 07/29/1966 | ✘ | ✘ | 22 | 45.0 | 3.05 | 3000.0 | — | 1913.0 |