| Huai'an Youth Comprehensive Development Base (Huai'an) |
 China |
Academic / research |
2010 |
0 |
0 |
0 |
| Huami Technology (Huami Tech) |
China |
Commercial |
|
0 |
0 |
0 |
| Huayi Hongda Technology Dev. Co. Ltd (Huayi) |
China |
Commercial |
2021 |
0 |
0 |
0 |
| Huazhong University of Science and Technology (Huazhong U.) |
China |
Academic / research |
1953 |
0 |
0 |
0 |
| Hubei University of Technology (Hubei U. Tech) |
China |
Academic / research |
1952 |
0 |
0 |
0 |
| Hughes (HUGH) |
 United States |
Commercial |
|
0 |
0 |
0 |
| Hughes Aircraft (HAC) |
United States |
Commercial |
1932 |
0 |
0 |
0 |
| Hughes Aircraft Co., Culver City (HAC) |
United States |
Commercial |
1948 |
0 |
0 |
0 |
| Hughes Global Services (HGS) |
United States |
Commercial |
1997 |
0 |
0 |
0 |
| Hughes Government Services (HGS) |
United States |
Commercial |
1996 |
0 |
0 |
0 |
| Hughes Missile Systems Co. Pomona (Hughes-Pomona) |
United States |
Commercial |
1992 |
0 |
0 |
0 |
| Hughes Missile Systems, AF Plant 44 (Hughes Missiles) |
United States |
Commercial |
1951 |
0 |
0 |
0 |
| Hughes Santa Barbara Research Corp. (SBRC) |
United States |
Commercial |
1960 |
0 |
0 |
0 |
| Hughes-Danbury Optical Systems (Hughes Danbury) |
United States |
Commercial |
1990 |
0 |
0 |
0 |
| Hunan Satellite Intelligent Manufacturing Factory (Hunan Saidlet) |
China |
Commercial |
2024 |
0 |
0 |
0 |
| Hunan University of Science and Technology (HUST) |
China |
Academic / research |
1949 |
0 |
0 |
0 |
| Hungarian Air Force (Hungarian AF) |
 Hungary |
Government / agency |
1918 |
0 |
0 |
0 |
| Hungarian Ministry of Foreign Affairs and Trade |
Hungary |
Government / agency |
|
0 |
0 |
0 |
| Hungarian Space Office (HSO) |
Hungary |
Government / agency |
|
0 |
0 |
0 |
| Hungarian Space Research Office (HSO) |
Hungary |
Government / agency |
1992 |
0 |
0 |
0 |
| Hunting Engineering (Hunting Eng.) |
 United Kingdom |
Commercial |
1957 |
0 |
0 |
0 |
| Huntsville, Alabama L5 Society (HAL5) |
United States |
Academic / research |
1997 |
0 |
0 |
0 |
| Huoyan Position Digital Intelligence Tech Service Co Ltd. (Huoyan) |
China |
Commercial |
2019 |
0 |
0 |
0 |
| HyImpulse (HYI) |
 Germany |
Commercial |
2018 |
0 |
0 |
2 |
| Hypergiant Galactic Systems (SEOPS LLC) (Hypergiant Gal.) |
United States |
Commercial |
2019 |
0 |
0 |
0 |
| Hypersonica GmbH (Hypersonica) |
Germany |
Commercial |
2024 |
0 |
0 |
0 |
| Hypersonix Launch Systems Pty Ltd (Hypersonix) |
 Australia |
Commercial |
2019 |
0 |
0 |
0 |
| HyPrSpace (HyPrSpace) |
 France |
Commercial |
2019 |
0 |
0 |
1 |
| HySpecIQ (HyspecIQ) |
United States |
Commercial |
2014 |
0 |
0 |
0 |
| i-Space (i-Space) |
China |
Commercial |
2016 |
0 |
0 |
2 |
| I.S. Turgenev Oryol State University (OGU) |
 Russia |
Academic / research |
1931 |
0 |
0 |
0 |
| IBM Inc. (IBM) |
United States |
Commercial |
1964 |
0 |
0 |
0 |
| IBM Satellite Transponder Leasing Corp. (IBM STLC) |
United States |
Commercial |
1986 |
0 |
0 |
0 |
| ICO Global Communications (ICO) |
United Kingdom |
Commercial |
1995 |
0 |
0 |
0 |
| ICO Global Communications (Holdings) Ltd (ICO Holdings) |
United States |
Commercial |
2000 |
0 |
0 |
0 |
| Ideia Space (Ideia Space) |
 Brazil |
Academic / research |
2020 |
0 |
0 |
0 |
| IHI Aerospace (former Nissan) (IHI Aerospace) |
 Japan |
Commercial |
2000 |
0 |
0 |
0 |
| IHI Corporation (IHI) |
Japan |
Commercial |
2000 |
0 |
0 |
1 |
| IMAX Corporation (IMAX) |
United States |
Commercial |
1967 |
0 |
0 |
0 |
| IMI Summerfield Rocket Research Station (IMI Summerfield) |
United Kingdom |
Government / agency |
1952 |
0 |
0 |
0 |
| Imperial College of Science and Technology (ICST) |
United Kingdom |
Academic / research |
1907 |
0 |
0 |
0 |
| In-Space Missions (In-Space) |
United Kingdom |
Commercial |
2015 |
0 |
0 |
0 |
| INCOSPAR (Indian Committee on Space Research), TIFR (INCOSP) |
 India |
Government / agency |
1962 |
0 |
0 |
0 |
| INCOSPAR, TERLS (INCOSPAR-TERLS) |
India |
Government / agency |
1962 |
0 |
0 |
0 |
| India Meteorological Department, New Delhi (IMD) |
India |
Government / agency |
1875 |
0 |
0 |
0 |
| Indian Institute of Space Science and Technology (IIST Kerala) |
India |
Academic / research |
2007 |
0 |
0 |
0 |
| Indian Institute of Technology, Madras (IITMD) |
India |
Academic / research |
1959 |
0 |
0 |
0 |
| Indian Institute of Tropical Meteorology (IITM) |
India |
Academic / research |
1971 |
0 |
0 |
0 |
