| SKC | S-Klasse Club 
| Others |
| SKC | Sacramento Kings Coverage
| Others |
| SKC | Saint Kentigern College
| Others |
| SKC | Salish Kootenai College
| Others |
| SKC | Sampa Kombi Clube
| Others |
| SKC | Sarcoma Karposi Coolie
| Others |
| SKC | Sarrah Kathleen Cox
| Others |
| SKC | Scalable Knowledge Composition
| Others |
| SKC | School Kids Connection
| Others |
| SKC | Seattle Karting Club
| Others |
| SKC | Secret Key Code
| Others |
| SKC | Secret Key Cryptography
| Others |
| SKC | Sega Karaoke Commander
| Others |
| SKC | Selkirk Crew
| Others |
| SKC | Selman Kautz and Cohen
| Others |
| SKC | Serial Killer Channel
| Others |
| SKC | Serialized Key Control
| Others |
| SKC | Series Keith Carlock
| Others |
| SKC | Session Key Changeover
| Others |
| SKC | Shidokan Kendo Club
| Others |
| SKC | Shinano Kenshi Corporation
| Others |
| SKC | Simlish Kennel Club
| Others |
| SKC | Simon Kenton Council
| Others |
| SKC | Simplex Knowledge Company
| Others |
| SKC | Singapore Karting Championship
| Others |
| SKC | Singapore Kennel Club
| Others |
| SKC | SKy Clear
| Others |
| SKC | Solving Kids Cancer
| Others |
| SKC | Soul Keepers Clan
| Others |
| SKC | South Kensington Club
| Others |
| SKC | South Korea Club
| Others |
| SKC | Southend Koi Carp Centre, Essex, United Kingdom
| Others |
| SKC | Sport Kite Championship
| Others |
| SKC | Sporting Kansas City
| Others |
| SKC | Steam Kettle Cooking
| Others |
| SKC | Stockholm Karting Center
| Others |
| SKC | Storekeeper Chief Petty Officer
| Others |
| SKC | Suki, Papua New Guinea
| Others |
| SKC | Sun Knowledge Connection
| Others |
| SKC | Super Kart Club
| Others |
| SKC | Super Kids Clubhouse
| Others |
| SKC | Sweetu Kara Coffee
| Others |
| SKC | Symmetric Key Certificates
| Others |
| SKC | Symmetric Key Cryptography
| Others |
| SKC | The Selkirk Crew
| Others |