| .sony | Sony Corporation | — |
| .soy | Charleston Road Registry Inc. | — |
| .spa | Asia Spa and Wellness Promotion Council Limited | — |
| .space | Radix Technologies Inc. | — |
| .sport | SportAccord | — |
| .spot | Amazon Registry Services, Inc. | — |
| .srl | InterNetX Corp. | — |
| .stada | STADA Arzneimittel AG | — |
| .staples | Staples, Inc. | — |
| .star | Star India Private Limited | — |
| .statebank | STATE BANK OF INDIA | — |
| .statefarm | State Farm Mutual Automobile Insurance Company | — |
| .stc | Saudi Telecom Company | — |
| .stcgroup | Saudi Telecom Company | — |
| .stockholm | Stockholms kommun | — |
| .storage | XYZ.COM LLC | — |
| .store | Radix Technologies Inc. | — |
| .stream | dot Stream Limited | — |
| .studio | Dog Beach, LLC | — |
| .study | Registry Services, LLC | — |
| .style | Binky Moon, LLC | — |
| .sucks | Vox Populi Registry Ltd. | — |
| .supplies | Binky Moon, LLC | — |
| .supply | Binky Moon, LLC | — |
| .support | Binky Moon, LLC | — |
| .surf | Registry Services, LLC | — |
| .surgery | Binky Moon, LLC | — |
| .suzuki | SUZUKI MOTOR CORPORATION | — |
| .swatch | The Swatch Group Ltd | — |
| .swiss | Swiss Confederation | — |
| .sydney | State of New South Wales, Department of Premier and Cabinet | — |
| .systems | Binky Moon, LLC | — |
| .tab | Tabcorp Holdings Limited | — |
| .taipei | Taipei City Government | — |
| .talk | Amazon Registry Services, Inc. | — |
| .taobao | Alibaba Group Holding Limited | — |
| .target | Target Domain Holdings, LLC | — |
| .tatamotors | Tata Motors Ltd | — |
| .tatar | Limited Liability Company "Coordination Center of Regional Domain of Tatarstan Republic" | — |
| .tattoo | Registry Services, LLC | — |
| .tax | Binky Moon, LLC | — |
| .taxi | Binky Moon, LLC | — |
| .tci | Emergency Back-End Registry Operator Program - ICANN | — |
| .tdk | TDK Corporation | — |
| .team | Binky Moon, LLC | — |
| .tech | Radix Technologies Inc. | — |
| .technology | Binky Moon, LLC | — |
| .temasek | Temasek Holdings (Private) Limited | — |
| .tennis | Binky Moon, LLC | — |
| .teva | Teva Pharmaceutical Industries Limited | — |