| 1951 | Kampung Senang Charity And Education Foundation S99SS0044C | 有効 |
| 1952 | Kang Liang Chinese Physician 52827756A | 有効 |
| 1953 | Knowell Trading (s) Pte. Ltd. 201427259Z | 有効 |
| 1954 | Kangen Earth 53274035A | 有効 |
| 1955 | Karlton Pte. Ltd. 201427240H | 有効 |
| 1956 | Kang Li Hung Garments Trading 52833939K | 有効 |
| 1957 | Kvm Singapore Pte. Ltd. 201606032D | 有効 |
| 1958 | Kiat Heng Audio Visual System 52832405E | 有効 |
| 1959 | Kiat Ann Trading 52731400E | 有効 |
| 1960 | Kwang Tong Auto Electrical & Battery Service 52823934A | 有効 |
| 1961 | K L Chong Construction 53180651X | 有効 |
| 1962 | K L Yap Consultants 52880076X | 有効 |
| 1963 | Khuang Chan Plasterceil Decor 52877666E | 有効 |
| 1964 | K K Soh Precision Engineering 52872164W | 有効 |
| 1965 | Kian Hong Press 52971872C | 有効 |
| 1966 | Kok Yew Construction 52936167A | 有効 |
| 1967 | Kemquip Engineering 52869176K | 有効 |
| 1968 | Kwee Lim Nursery 1996 52826340D | 有効 |
| 1969 | Kok Sen Coffee Shop 52877331C | 有効 |
| 1970 | Kaplan Professional 52876327W | 有効 |
| 1971 | Kah Fatt Engineering Works 52813511B | 有効 |
| 1972 | Knowhow Management 52866912E | 有効 |
| 1973 | Kai Kheng Plumbing & Paint Supplies 52824563E | 有効 |
| 1974 | Kuehs And Snacks 52877435B | 有効 |
| 1975 | Kiat Seng Nursery 52877290B | 有効 |
| 1976 | Kwik Pc & Monitor Services 52869112X | 有効 |
| 1977 | Kwang Hua Buddhist Monastery S92SS0035C | 有効 |
| 1978 | Kiat Fu Services 52815351W | 有効 |
| 1979 | Kris Link International 52938072B | 有効 |
| 1980 | K.s. Machinery & Trading Enterprise 52814166W | 有効 |