| 1951 | K K Lim Hardware 52799931L | Active |
| 1952 | Koyee (unisex) Hair & Beauty Saloon 52799804D | Active |
| 1953 | Kokono Trends 53067613C | Active |
| 1954 | Khee Aluminium & Engineering Pte. Ltd. 201226026R | Active |
| 1955 | Kpm International Pte. Ltd. 201408250C | Active |
| 1956 | Kenzar's International Exporters 52802420E | Active |
| 1957 | Ksbh Pte. Ltd. 201325874C | Active |
| 1958 | Kampong Glam Selegie Residents' Committee S86SS0107K | Active |
| 1959 | Kensfield Housing Agency 52802492B | Active |
| 1960 | Kidsmart Place 53317671M | Active |
| 1961 | K S Wong Contract Enterprise 52842815B | Active |
| 1962 | Koonex Group Pte Ltd 199507048N | Active |
| 1963 | Kh Fitness Pte. Ltd. 201535853K | Active |
| 1964 | Kindling Technologies Pte. Ltd. 201536288M | Active |
| 1965 | Kian Teck Interior Renovation 52801957X | Active |
| 1966 | Kia Hock Furniture & Renovation 52804366L | Active |
| 1967 | Kong Lim Machinery Construction 52557700M | Active |
| 1968 | Kjm Autoist Chauffeur 53318172X | Active |
| 1969 | Kia Mui Seafood Supplier 52808022M | Active |
| 1970 | Kkr Jupiter Aggregator L.p. T15UF4283E | Active |
| 1971 | Kk Chemicals 53145723X | Active |
| 1972 | Kanga Organics 53144164D | Active |
| 1973 | Kembangan Punggol Vale Residents' Committee S88SS0079A | Active |
| 1974 | K A Hair Salon 53322386E | Active |
| 1975 | Kwee Repair Services 52808141A | Active |
| 1976 | Koon Seng House Residents' Association S93SS0008C | Active |
| 1977 | Khush Khabri Fellowship S92SS0004C | Active |
| 1978 | Kim Beng Heong And Trading 52804926K | Active |
| 1979 | Ka Soh Fish Head Noodles 52429400C | Active |
| 1980 | Kukdong Electric Wires & Cables 52803403X | Active |