| Hi Tech Centre | Academic & Science |
| High Technology Center | Academic & Science |
| Harvard Theatre Collection, Houghton Library | Academic & Science |
| Harvard Theatre Collection | Academic & Science |
| Highland Theological College | Academic & Science |
| Hard-Twist Carpet | Academic & Science |
| Holy Trinity College | Academic & Science |
| Heat Treated Cream | Business |
| Hollywood Trading Company | Business |
| Harrisonville Telephone Company | Business |
| Happy Telephone Company | Business |
| Hungarian Telephone & Cable Corporation | Business |
| High Tech Computer | Business |
| Horry Telephone Cooperative | Business |
| Heat Transfer Coefficient | Chemistry |
| Help The Children | Community |
| Healing The Children | Community |
| High Tech Computer Corporation | Company Name |
| Halt and Toss Cookies | Computer Assembly Language |
| Houston Technology Center | Computing |
| High Technology Company | Computing |
| High Technology Computer | Computing |
| Html Components | Computing |
| Hi-Tech C Compiler | Computing |
| Hat Swap City | Cryptocurrency |
| Hebrew Theological College | Educational Institute |
| Hold The Cat | General |
| Hacking The Country | General |
| Hipster Troll Carwash | General |
| High Tech Crap | General |
| Husky Tissue Camp | General |
| Humongous Tinfoil Catamaran | General |
| Hair Trimming Contraption | General |
| Humongous Tantalizing Champagne | General |
| Hyperactive Tackling Cubical | General |
| Horribly Troubled Contraption | General |
| Home Training Center | General |
| Hilarious Theorizing Cubical | General |
| High Transmission Circular | General |
| Hydrogen Transfer Catalysis | General |
| High Tech Cable | General |
| Tool Cutter | General |
| Hydraulic Turbo Charger | General |
| Hard Top Coupe | General |
| Hard Top Convertible | General |
| Hyundai Tournament of Champions | General |
| Honda Trading Canada | General |
| Honda Taiwan Company | General |
| Honda Technical Centre | General |
| Hyundai Thanh Cong | General |
| Heinkel Trojan Club | General |
| Hydraulic Truck Crane | General |
| High Torque Capacity | General |
| Historic Transport Club | General |
| Holden Torana Club | General |
| Heritage Touring Cars | General |
| Hemi Truck Club | General |
| Honda Total Care | General |
| Homologation and Technology Centre | General |
| Hijet Trenggalek Community | General |
| Hyundai Tucson Club | General |
| Hull Maintenance Technician Chief Petty Officer | Governmental |
| House Transportation Committee | Governmental |
| HATHRAS CITY | Indian Railway Station |
| High-Throughput Computing | Information Technology |
| Hemophilia Treatment Center | Medical |
| HIV Testing and Counseling | Medical |
| Hyberbolic Time Chamber | Messaging |
| Hit The Cell | Messaging |
| Chief Hull Technician | Military and Defence |
| Host/target Communication | Networking |
| Hybrid Technology Computer | Space Science |
