| .hsbc | HSBC Global Services (UK) Limited | — |
| .hughes | Hughes Satellite Systems Corporation | — |
| .hyatt | Hyatt GTLD, L.L.C. | — |
| .hyundai | Hyundai Motor Company | — |
| .ibm | International Business Machines Corporation | — |
| .icbc | Industrial and Commercial Bank of China Limited | — |
| .ice | IntercontinentalExchange, Inc. | — |
| .icu | Shortdot SA | — |
| .ieee | IEEE Global LLC | — |
| .ifm | ifm electronic gmbh | — |
| .ikano | Ikano S.A. | — |
| .imamat | Fondation Aga Khan (Aga Khan Foundation) | — |
| .imdb | Amazon Registry Services, Inc. | — |
| .immo | Binky Moon, LLC | — |
| .immobilien | Dog Beach, LLC | — |
| .inc | Intercap Registry Inc. | — |
| .industries | Binky Moon, LLC | — |
| .infiniti | NISSAN MOTOR CO., LTD. | — |
| .info | Identity Digital Limited | — |
| .ing | Charleston Road Registry Inc. | — |
| .ink | Registry Services, LLC | — |
| .institute | Binky Moon, LLC | — |
| .insurance | fTLD Registry Services LLC | — |
| .insure | Binky Moon, LLC | — |
| .international | Binky Moon, LLC | — |
| .intuit | Intuit Administrative Services, Inc. | — |
| .investments | Binky Moon, LLC | — |
| .ipiranga | Ipiranga Produtos de Petroleo S.A. | — |
| .irish | Binky Moon, LLC | — |
| .ismaili | Fondation Aga Khan (Aga Khan Foundation) | — |
| .ist | Istanbul Metropolitan Municipality | — |
| .istanbul | Istanbul Metropolitan Municipality | — |
| .itau | Itau Unibanco Holding S.A. | — |
| .itv | ITV Services Limited | — |
| .jaguar | Jaguar Land Rover Ltd | — |
| .java | Oracle Corporation | — |
| .jcb | JCB Co., Ltd. | — |
| .jeep | FCA US LLC. | — |
| .jetzt | Binky Moon, LLC | — |
| .jewelry | Binky Moon, LLC | — |
| .jio | Reliance Industries Limited | — |
| .jll | Jones Lang LaSalle Incorporated | — |
| .jmp | Matrix IP LLC | — |
| .jnj | Johnson & Johnson Services, Inc. | — |
| .joburg | ZA Central Registry NPC trading as ZA Central Registry | — |
| .jot | Amazon Registry Services, Inc. | — |
| .joy | Amazon Registry Services, Inc. | — |
| .jpmorgan | JPMorgan Chase Bank, National Association | — |
| .jprs | Japan Registry Services Co., Ltd. | — |
| .juegos | Dog Beach, LLC | — |