| 1891 | Kopi Alley 53078385A | Active |
| 1892 | Kheng Siew Buddhist Centre T05SS0216G | Active |
| 1893 | Kater Dorje Ling T07SS0029F | Active |
| 1894 | K L Goh Secretarial Services 52900085K | Active |
| 1895 | Keelson Group Pte. Ltd. 201536246Z | Active |
| 1896 | Katong News Agency 03253900B | Active |
| 1897 | Ksw163 Pte. Ltd. 201536478H | Active |
| 1898 | Kim Lan Senior Citizens' Mutual Association T06SS0084G | Active |
| 1899 | Krijan Enterprise 52896887D | Active |
| 1900 | King Artifact Services Pte. Ltd. 201536430K | Active |
| 1901 | Kindness Senior Citizens Club T06SS0079D | Active |
| 1902 | Koon Sing Friendly Association T06SS0217H | Active |
| 1903 | Korean Buddhist Association Sajahujungsa (vihara Singha) T08SS0169L | Active |
| 1904 | Khangmar Yeshe Shen Dharma Centre T08SS0011E | Active |
| 1905 | Kwan Zi Zai Buddhist Society T06SS0064H | Active |
| 1906 | Kangling Professional Performing Arts Association T05SS0307L | Active |
| 1907 | Kingdom Of Jesus Christ Society T01SS0001J | Active |
| 1908 | Kai Kok Tian T03SS0080H | Active |
| 1909 | Kingdom City Church T06SS0179F | Active |
| 1910 | Kuan Im Tng Temple (joo Chiat) T03SS0021G | Active |
| 1911 | Kian Kun Tian T08SS0094L | Active |
| 1912 | Katani Co., Ltd. T07UF0023C | Active |
| 1913 | Keepers Management Services 52846261W | Active |
| 1914 | Kolours Consultancy Services 52857416K | Active |
| 1915 | Kong Beng Tong Temple Association S84SS0011E | Active |
| 1916 | Kwan Siang Tng S84SS0002G | Active |
| 1917 | Koon Teck Tng S90SS0006G | Active |
| 1918 | Kmx Tools Machinery Services 52857689E | Active |
| 1919 | Kai Hock Tong Temple S87SS0078L | Active |
| 1920 | K One Marketing 52842965E | Active |