| 1951 | Kingsway Asia 52819620X | Active |
| 1952 | Karisma Inter Trade & Services 52833913C | Active |
| 1953 | Kian Sin Refrigeration & Airconditioning Service 22732900K | Active |
| 1954 | Kjl Management 52821182W | Active |
| 1955 | Kartikeya International Pte. Ltd. 201427194C | Active |
| 1956 | Knotty Shop (1995) 52812643A | Active |
| 1957 | Kps Engineering Pte. Ltd. 200807941N | Active |
| 1958 | Khai Rick Enterprise 53256275E | Active |
| 1959 | Khoon Kang Lian Ngee Sia (singapore) S95SS0154A | Active |
| 1960 | Kbc Advanced Technologies Limited S90UF0022F | Active |
| 1961 | Kes Tech 52868096W | Active |
| 1962 | Kheng Chiu Loke Tin Kee Home S92SS0060E | Active |
| 1963 | Kiat Leng San Temple S94SS0054E | Active |
| 1964 | Kampung Senang Charity And Education Foundation S99SS0044C | Active |
| 1965 | Kang Liang Chinese Physician 52827756A | Active |
| 1966 | Knowell Trading (s) Pte. Ltd. 201427259Z | Active |
| 1967 | Kangen Earth 53274035A | Active |
| 1968 | Karlton Pte. Ltd. 201427240H | Active |
| 1969 | Kang Li Hung Garments Trading 52833939K | Active |
| 1970 | Kvm Singapore Pte. Ltd. 201606032D | Active |
| 1971 | Kiat Heng Audio Visual System 52832405E | Active |
| 1972 | Kiat Ann Trading 52731400E | Active |
| 1973 | Kwang Tong Auto Electrical & Battery Service 52823934A | Active |
| 1974 | K L Chong Construction 53180651X | Active |
| 1975 | K L Yap Consultants 52880076X | Active |
| 1976 | Khuang Chan Plasterceil Decor 52877666E | Active |
| 1977 | Kebun Baru Grove Residents' Committee S84SS0115B | Active |
| 1978 | Kampong Glam Rochor Centre Residents' Committee S84SS0122H | Active |
| 1979 | K K Soh Precision Engineering 52872164W | Active |
| 1980 | Kian Hong Press 52971872C | Active |