| HiveTech | Hanoi |
| HK Soft | |
| Ho Chi Minh City Open University | Ho Chi Minh City |
| Ho Chi Minh City University of Education | |
| Ho Chi Minh City University of Technology | |
| Ho Chi Minh Cty University of Technology | |
| Hoa Sen University | |
| Hoan Long Computer | Ho Chi Minh City |
| HOÀNG TÍN | Hanoi |
| Hoàng Web | |
| HỘI TIN HỌC VIỆT NAM | Hanoi |
| Hola Tech | |
| Hong Bang International University | Ho Chi Minh City |
| Hong Lam University | Ho Chi Minh City |
| Hosting Vietnam | Hanoi |
| HOSTVN | Hanoi |
| HPT Vietnam Corporation | |
| HSBC Vietnam | |
| HTL Information Technologies JSC | Ho Chi Minh City |
| Hue College of Economics | |
| Hue University | |
| Hưng Hà | Hanoi |
| Hung Vuong University | |
| Hung Yen University of Technology and Education | |
| HuviTek | Hanoi |
| Hyra Holdings | |
| ICBC Ltd Hanoi City Branch | |
| Icetea Software | |
| ICSC Corporation | |
| ICTS | |
| ICTS Digital Transformation | |
| IDS Software | |
| Impact Technical Resources | |
| IMT Solutions | Ho Chi Minh City |
| InApps Technology | Ho Chi Minh City |
| Industrial University of Ho Chi Minh City | |
| iNET Corporation | Hanoi |
| Infina | Ho Chi Minh City |
| Infinity Blockchain Labs Co., Ltd | Ho Chi Minh City |
| InfraTech Technology JSC | |
| INNOMIZE Co., Ltd | Ho Chi Minh City |
| Innotech Vietnam Corporation | Ho Chi Minh City |
| Institute of Mathematics, VAST | Hanoi |
| International Digital Media | Ho Chi Minh City |
| International Training Institute for Materials Science | |
| International University, Vietnam National University - Ho Chi Minh City | |
| Internet Marketing Solutions | Ho Chi Minh City |
| Investidea.tech Co., Ltd | |
| Iris Data-driven Marketing Agency | |
| Irkawebdesign | Ho Chi Minh City |