- GKART
- GKB
- GKE
- GKK Etzenricht
- GKN
- GKNPZ Khrunichev
- GKO
- Gkoot-elektronisk
- GKP Gorzów Wielkopolski
- GKrellM
- gksu
- GKS BeÅchatów
- GKS Bełchatów
- GKS JastrzÄbie
- GKS Jastrzębie
- GKS Katowice
- GKS Katowice (fodbold)
- GKS Katowice (ishockey)
- GKS Tychy (fodbold)
- GKS Tychy (ishockey)
- GKV Network Television
- GK Dürnrohr
- GK Elite Sportswear
- GK Persei
- GK Wien-Südost