 Philae | March 2, 2004 | European Space Agency | Ariane 5G+ |
 Rosetta | March 2, 2004 | European Space Agency | Ariane 5G+ |
| USA-176 | February 14, 2004 | — | Titan IV |
| AMC-10 | February 5, 2004 | — | Atlas II |
 Progress M1-11 | January 29, 2004 | Roscosmos State Corporation | Soyuz-U |
| Telstar 14 | January 11, 2004 | Telesat | Zenit-3SL |
| Double Star 1 | December 29, 2003 | European Space Agency, China National Space Administration | Long March 2C |
| Ekspress AM22 | December 28, 2003 | Russian Satellite Communications Company | Proton-K |
| AMOS-2 | December 27, 2003 | Spacecom | Soyuz-FG |
 USA-175 | December 21, 2003 | United States Air Force | Delta II |
| UFO 11 | December 18, 2003 | — | Atlas IIIB |
| Kosmos 2402 | December 10, 2003 | Russian Space Forces | Proton-K |
| Kosmos 2403 | December 10, 2003 | Russian Space Forces | Proton-K |
| Kosmos 2404 | December 10, 2003 | Russian Space Forces | Proton-K |
| Jamal 201 | November 24, 2003 | Gazprom Space Systems | Proton-K |
| Yamal 202 | November 24, 2003 | Gazprom Space Systems | Proton-K |
| Zhongxing 20 | November 14, 2003 | — | Long March 3A |
| FSW-3 1 | November 3, 2003 | — | Long March 2D |
| SERVIS-1 | October 30, 2003 | — | Rokot |
 CBERS-2 | October 21, 2003 | China National Space Administration | Long March 4B |
| DMSP 5D-3/F16 | October 18, 2003 | — | Titan 23G |
 Soyuz TMA-3 | October 18, 2003 | Roscosmos State Corporation | Soyuz-FG |
| RESOURCESAT-1 | October 17, 2003 | Indian Space Research Organisation | Polar Satellite Launch Vehicle-G |
 Shenzhou 5 | October 15, 2003 | China Aerospace Science and Technology Corporation | Long March 2F |
| Horizons 1 | October 1, 2003 | — | Zenit-3SL |
| BILSAT-1 | September 27, 2003 | TÜBİTAK Space Technologies Research Institute | Kosmos-3M |
| Eutelsat 33A | September 27, 2003 | Eutelsat | Ariane 5G |
 INSAT-3E | September 27, 2003 | Indian Space Research Organisation | Ariane 5G |
 Korea Advanced Institute of Science and Technology Satellite 4 | September 27, 2003 | KAIST Satellite Technology Research Center | Kosmos-3M |
| Larets | September 27, 2003 | — | Kosmos-3M |
| NigeriaSat 1 | September 27, 2003 | — | Kosmos-3M |
 SMART-1 | September 27, 2003 | European Space Agency | Ariane 5G |
| UK-DMC | September 27, 2003 | British National Space Centre | Kosmos-3M |
| USA 171 | September 9, 2003 | — | Titan IV |
 Progress M-48 | August 29, 2003 | — | Soyuz-U |
| USA-170 | August 29, 2003 | — | Delta IV Medium |
 Spitzer Space Telescope | August 25, 2003 | Infrared Processing and Analysis Center, Jet Propulsion Laboratory | Delta II |
| Cosmos 2400 | August 19, 2003 | — | Kosmos-3M |
| Cosmos 2401 | August 19, 2003 | — | Kosmos-3M |
| SCISAT-1 | August 13, 2003 | Canadian Space Agency | Pegasus |
| Cosmos 2399 | August 12, 2003 | — | Soyuz-U |
| Galaxy 23 | August 8, 2003 | Intelsat | Zenit-3SL |
| EchoStar XII | July 17, 2003 | Cablevision | Atlas V 521 |
 Challenger Memorial Station | July 8, 2003 | Jet Propulsion Laboratory | Delta II |
 Opportunity | July 8, 2003 | Jet Propulsion Laboratory | Delta II |
| AAU CubeSat | June 30, 2003 | — | Rokot |
| CanX-1 | June 30, 2003 | University of Toronto Institute for Aerospace Studies | Rokot |
| Cubesat XI-IV | June 30, 2003 | University of Tokyo | Rokot |