| 1921 | Macco Manufacturing Pte. Ltd. 200817265Z | Active |
| 1922 | Merlin Construction Pte Ltd 198300239N | Active |
| 1923 | Marubeni Itochu Tubulars Asia Pte Ltd 198002599R | Active |
| 1924 | Millice Private Limited 197900822H | Active |
| 1925 | Milworks Embedded Products Llp
| Active |
| 1926 | Mitsubishi Heavy Industries Engine System Asia Pte. Ltd. 198102850N | Active |
| 1927 | Magnum Precision Industries Pte. Ltd. 201023875H | Active |
| 1928 | Metermix Systems Pte. Ltd. 200720266K | Active |
| 1929 | Mui Huat Trading 48394600A | Active |
| 1930 | Mph Cranes (far East) Pte. Ltd. 200509231C | Active |
| 1931 | Metal Image 53173621X | Active |
| 1932 | Mandarin Frp & Contracts Pte. Ltd. 199400251C | Active |
| 1933 | Marubeni Corporation S56FC1196L | Active |
| 1934 | Mainwell Engineering & Services 50809400C | Active |
| 1935 | Ming Kwang Air Conditioning Engineering 53156281J | Active |
| 1936 | Merseyside Enterprises 53164224X | Active |
| 1937 | Moya Asia Pte. Ltd. 198602051G | Active |
| 1938 | Matrix Resource 52863324D | Active |
| 1939 | M.d. Construction Engineering Pte. Ltd. 200902547D | Active |
| 1940 | Minsang Oriental Pte. Ltd. 200900557D | Active |
| 1941 | M E Energetics Pte. Ltd. 200311628D | Active |
| 1942 | Meghna Power Engineering Pte. Ltd. 200912672Z | Active |
| 1943 | Mirage Supplies Enterprises 34366900E | Active |
| 1944 | Macgyver Engineering Pte Ltd 199606791K | Active |
| 1945 | M+w Singapore Pte. Ltd. 199507493C | Active |
| 1946 | Maha Construction & Engineering Pte. Ltd. 201104841K | Active |
| 1947 | Meng Thong Construction Pte Ltd 199503191K | Active |
| 1948 | Modello Pte. Ltd. 200917280N | Active |
| 1949 | Mei Han Sen Engineering & Construction Pte. Ltd. 201021922N | Active |
| 1950 | M Tech Air Con & Security Engineering Pte Ltd 199304048W | Active |