| 1921 | Ang Skin & Hair Clinic
T07CM2172F | Active |
| 1922 | Altra Enterprises Pte Ltd
198104997H | Active |
| 1923 | Alliance Chemicals Pte Ltd
198802757C | Active |
| 1924 | Abacus Corpn Pte Ltd
| Active |
| 1925 | Annex Automation
52813678W | Active |
| 1926 | Alliance Manpower Pte. Ltd.
200901521R | Active |
| 1927 | Abletron Pte Ltd
199406327C | Active |
| 1928 | Aa Forklift Tyres Pte. Ltd.
201103689D | Active |
| 1929 | Aquablu Pools (pte) Ltd
197101176C | Active |
| 1930 | Angliss Singapore Pte Ltd
194800011H | Active |
| 1931 | Alliance Marine Services Pte Ltd
199001306H | Active |
| 1932 | Alliance Francaise De Singapour
S61SS0085C | Active |
| 1933 | Alliance Airsupport Pte Ltd
198904042H | Active |
| 1934 | Alles Energy Supplies Pte. Ltd.
199705114C | Active |
| 1935 | Allergy Arthritis Rheumatism Clinic
| Active |
| 1936 | Aquatic Style S'pore
| Active |
| 1937 | Ann Hock Transport Service
52811646X | Active |
| 1938 | Apollo Ess Pte. Ltd.
199607796C | Active |
| 1939 | Apro Asian Protection Pte Ltd
198500840D | Active |
| 1940 | Ang Seng Eggs Supplier
36795800K | Active |
| 1941 | Ang Peng Chye Dr
| Active |
| 1942 | Ang Mo Kio Methodist Church
| Active |
| 1943 | Alliance Int'l Builders Pte Ltd
| Active |
| 1944 | Allercare Pte Ltd
199608766Z | Active |
| 1945 | Alloy Technology Pte Ltd
199304399R | Active |
| 1946 | Ansell International Company
20913100D | Active |
| 1947 | Ango Plumbing & Engineering Enterprises
| Active |
| 1948 | Allpets & Aqualife Vets Pte. Ltd.
200202976D | Active |
| 1949 | Aquametro (South East Asia) Pte Ltd
| Active |
| 1950 | Aqua-terra Supply Co Ltd
| Active |