| 1921 | Jefferson Watkins Interiors 38726500K | Active |
| 1922 | Jamboree Design & Construction 39378600E | Active |
| 1923 | June Supplier & Services 39498500A | Active |
| 1924 | J W H Packaging & Trading 40059700D | Active |
| 1925 | Jk Properties 39565300B | Active |
| 1926 | Jia Yun Trading Enterprise 40062400A | Active |
| 1927 | Jia Lin Industry 39974700A | Active |
| 1928 | Johnnie Zheng Interior Design And Trading 37461800C | Active |
| 1929 | Joesin Trading 40333100E | Active |
| 1930 | Joo Lan Florist 38971300K | Active |
| 1931 | J Salon 38265300M | Active |
| 1932 | Jill's Transport 53325660K | Active |
| 1933 | Joo Huat Trading 37511400M | Active |
| 1934 | Jayasom Pte. Ltd. 201424666H | Active |
| 1935 | J Dan Marketing 37380100M | Active |
| 1936 | Jurong East Furniture 38466500D | Active |
| 1937 | Jin Wan Li Mini Mart 39911000C | Active |
| 1938 | Jin Quan Motor Trading 38316100B | Active |
| 1939 | Jupiter Soft Pte. Ltd. 201536967W | Active |
| 1940 | Jp Advertising & Promotion 40332000C | Active |
| 1941 | Jimmy Marketing Agencies 37610800B | Active |
| 1942 | Jacintha Wee Pte. Ltd. 201424600G | Active |
| 1943 | Jen Chen Buddhist Book Publisher 39182500C | Active |
| 1944 | Jimmy Cafe 39206200C | Active |
| 1945 | Jonathan Y H Goh Advertising. Marketing.pr Consultants 40138800W | Active |
| 1946 | Jack Singing Training & Musical Centre 36389100E | Active |
| 1947 | Jackson Bakery & Confectionery 38014300C | Active |
| 1948 | Jasper Photography 38024400D | Active |
| 1949 | Joseph Consultants & Management 38183200K | Active |
| 1950 | Jc Food Consultants 37816600W | Active |