| National Space Development Adminstration | JP | gov defense | 2013 | 0 |
| Russian Navy | RU | gov defense | - | 0 |
| Eurockot Launch Services GmbH (D for RU lanch vehicle) | RU | commercial | - | 0 |
| Space International Services | RU | | - | 0 |
| Korean Committee of Space Technology | KP | gov defense | - | 0 |
| Sepah-e Pasdaran-e Enghelab-e Eslami (Missile Forces) | IR | gov defense | - | 0 |
| RCA Astro Electronics (Astro Space) | US | commercial | 1958 | 0 |
| G T Schjeldahl Inc. | US | commercial | 1955 | 0 |
| Office of Naval Research | US | gov defense | - | 0 |
| Raymond Engineering Laboratories | US | commercial | - | 0 |
| Project OSCAR Inc. | US | ngo | 1960 | 0 |
| Yangel KB | RU | commercial | - | 0 |
| Bell Labs | US | commercial | - | 0 |
| Defense Research Telecommunications Establishment, Canada | CA | gov defense | 1951 | 0 |
| De Havilland, Toronto (Special Products/Appl. Research Div) | CA | commercial | - | 0 |
| Advanced Technologies, Inc. (ATI) | US | commercial | - | 0 |
| OKB-52 (Chelomey) | RU | gov defense | - | 0 |
| HRB-Singer Co. | US | commercial | - | 0 |
| ITT Federal Laboratories | US | commercial | - | 0 |
| UK Dept. of Scientific and Industrial Research | GB | gov civil | 1916 | 0 |
| North American Aviation, Missile Division, Downey | US | commercial | - | 0 |
| Main Rocket Armaments Directorate | RU | gov defense | 1862 | 0 |
| Cutler-Hammer Airborne Instruments Laboratory | US | commercial | - | 0 |
| Naval Avionics Facility, Indianapolis | US | gov defense | 1942 | 0 |
| Bendix Systems Div. | US | commercial | - | 0 |
| Italian Space Research Commission | IT | gov civil | 1988 | 0 |
| Fairchild Hiller Space Systems Division | US | commercial | - | 0 |
| Rohr Corp. | US | commercial | - | 0 |
| Environmental Science Services Administration | US | gov civil | 1965 | 0 |
| Nord Aviation | FR | commercial | - | 0 |
| Institut Kosmicheksiye Issledovaniya | RU | gov civil | - | 0 |
| NPO Lavotchkin | RU | commercial | - | 0 |
| Goodyear Aerospace | US | commercial | - | 0 |
| Machine Building Special Design Bureau | RU | commercial | - | 0 |
| UK Science Research Council | GB | gov civil | 1965 | 0 |
| TsNII Kometa | RU | gov defense | 1973 | 0 |
| Hawker Siddeley Dynamics | GB | commercial | 1963 | 0 |
| Laboratoire Centrale de Telecommunications | FR | academic | - | 0 |
| Junkers Flugzeug- und Motorenwerke GmBH | DE | commercial | 1895 | 0 |
| Communications Research Center | CA | gov civil | - | 0 |
| RCA Victor Ltd. | CA | commercial | - | 0 |
| Interkosmos | RU | gov civil | 1967 | 0 |
| DFVLR | DE | gov civil | 1969 | 0 |
| Gesellschaft fur Weltraumforschung | DE | ngo | 1948 | 0 |
| Seventh Ministry of Machine Building | CN | gov defense | 1964 | 0 |
| Insitute of Medical-Biological Problems | RU | academic | 1963 | 0 |
| Ling-Temco-Vought Missile Systems | US | commercial | - | 0 |
| Glavnoye Razvedyvatelnoe Upravleniye | RU | gov defense | - | 0 |
| MATRA Space | FR | commercial | - | 0 |
| Dornier Flugzeugwerke (Freidrichshafen) | DE | commercial | 1914 | 0 |