- Hainan Meijieda Technology Limited // China Domains Registrar
- Hang Ten Domains, LLC // United States of America Domains Registrar
- HANGANG Systems, Inc. dba Doregi.com // Korea, Republic of Domains Registrar
- Hanging Curve Domains LLC // United States of America Domains Registrar
- Hangzhou AiMing Network Co., Ltd. // China Domains Registrar
- Hangzhou Dianshang Internet Technology Co., LTD // China Domains Registrar
- Hangzhou MarkSmile Technology Co., Ltd // China Domains Registrar
- Hangzhou Midaizi Network Co., Ltd. // China Domains Registrar
- Haveaname, LLC // United States of America Domains Registrar
- Hawthornedomains.com LLC // United States of America Domains Registrar
- HazelDomains, Inc. // China Domains Registrar
- Heavydomains.net LLC // United States of America Domains Registrar
- Hefei Juming Network Technology Co., Ltd // China Domains Registrar
- Hefei Xunyun Network Technology Co., Ltd // China Domains Registrar
- Hello Internet Corp // United States of America Domains Registrar
- Henan Weichuang Network Technology Co. Ltd // China Domains Registrar
- Hetzner Online GmbH // Germany Domains Registrar
- HLJ E-Link Network Co., Ltd // China Domains Registrar
- Hogan Lovells International LLP // United Kingdom of Great Britain and Northern Ireland Domains Registrar
- Hong Kong Juming Network Technology Co., Ltd // Hong Kong, China Domains Registrar
- HongKong Di En Si International Co., Limited // Hong Kong, China Domains Registrar
- Hongkong Domain Name Information Management Co., Limited // Hong Kong, China Domains Registrar
- Hongkong Kouming International Limited // Hong Kong, China Domains Registrar
- Host SpA // Italy Domains Registrar
- Hosteur SARL // France Domains Registrar
- Hosting Concepts B.V. d/b/a Registrar.eu // Netherlands Domains Registrar
- Hosting Ukraine LLC // Ukraine Domains Registrar
- Hostinger, UAB // Lithuania Domains Registrar
- Hostlane, LLC // United States of America Domains Registrar
- Hostnet bv // Netherlands Domains Registrar
- Hostpoint AG // Switzerland Domains Registrar
- HostPro Lab // Ukraine Domains Registrar
- Hotdomaintrade.com, LLC // India Domains Registrar
- House of Domains, LLC // United States of America Domains Registrar
- http.net Internet GmbH // Germany Domains Registrar
- Hu Yi Global Information Hong Kong Limited // Hong Kong, China Domains Registrar
- humbly LLC // United States of America Domains Registrar
