| 1951 | Ann Huat & Co 03832800C | Active |
| 1952 | Animal Recovery Centre Pte Ltd The
| Active |
| 1953 | Ang Tong Seng Bros Enterprises Pte Ltd
| Active |
| 1954 | Ann Tan & Associates 53131114K | Active |
| 1955 | Alltek Technology (S'pore) Pte Ltd
| Active |
| 1956 | All Big Trading Company 24773900J | Active |
| 1957 | Al'fresco Elite System Pte Ltd 199301190Z | Active |
| 1958 | All Watches Pte Ltd 198402065R | Active |
| 1959 | Agro Flora & Landscape Pte. Ltd. 198602224K | Active |
| 1960 | Afpd Pte., Ltd. 200101686M | Active |
| 1961 | Allied Metalcraft Co Pte Ltd
| Active |
| 1962 | Alcap Stationery Pte. Ltd. 200312446N | Active |
| 1963 | All Breeds Pets 26811600L | Active |
| 1964 | Ahe Pte. Ltd. 200206207H | Active |
| 1965 | Ah Seng Stainless Steel Pte. Ltd. 200301818C | Active |
| 1966 | Ah Heng Furniture Co 08093200B | Active |
| 1967 | Agilent Technologies Singapore (sales) Pte. Ltd. 199904761K | Active |
| 1968 | Age D'or Pte Ltd 198305357N | Active |
| 1969 | Ag Industries Asia-pacific Pte Ltd
| Active |
| 1970 | Acuaire S'pore Pte Ltd
| Active |
| 1971 | Activia Engineering Pte. Ltd. 200416639M | Active |
| 1972 | Acro Pte Ltd
| Active |
| 1973 | Active Learners 52816402C | Active |
| 1974 | Act 3 Theatrics Pte. Ltd. 198401061R | Active |
| 1975 | A&k Industrial Supply 49591700A | Active |
| 1976 | Aci Worldwide (asia) Pte. Ltd. 199409251H | Active |
| 1977 | Act 3 Int'l Pte Ltd
| Active |
| 1978 | Actus Guards Pte. Ltd. 200413389D | Active |
| 1979 | Advance Cell Corpn Pte Ltd
| Active |
| 1980 | Achtizm Asia Pacific Pte Ltd 200000697R | Active |