| 1921 | Halisha Maintenance & Construction Pte. Ltd. 200713397E | 启用 |
| 1922 | He Shun Xin Construction Pte. Ltd. 200818530G | 启用 |
| 1923 | Hoong Huat Engineering Works Pte. Ltd. 200603713R | 启用 |
| 1924 | Hengs (os) Corporation Pte. Ltd. 200806291Z | 启用 |
| 1925 | Heptacon Construction Pte. Ltd. 200902017M | 启用 |
| 1926 | Hock Hwa Builders Pte. Ltd. 200820939K | 启用 |
| 1927 | Hanako Construction Pte. Ltd. 200514516K | 启用 |
| 1928 | Haru Engineering Pte. Ltd. 200604605G | 启用 |
| 1929 | Hoyi System Pte. Ltd. 200600071Z | 启用 |
| 1930 | Hup Rich Engineering Pte. Ltd. 200708664C | 启用 |
| 1931 | Han Fong Aluminium Pte. Ltd. 200801537K | 启用 |
| 1932 | Hitachi T&d Systems Asia Pte. Ltd. 200411493M | 启用 |
| 1933 | Hung Yuen Enterprise Pte. Ltd. 200709417W | 启用 |
| 1934 | Hks Engineering & Trading Pte. Ltd. 200716324M | 启用 |
| 1935 | Hrd Professional Handyman Pte. Ltd. 200410805C | 启用 |
| 1936 | Hong Seng Sports Surfaces Pte. Ltd. 200706060W | 启用 |
| 1937 | Homeland Construction Pte. Ltd. 200721933W | 启用 |
| 1938 | Hensen (s) Pte. Ltd. 200610461D | 启用 |
| 1939 | Hoga Iyota Communications & Technology (s) Pte. Ltd. 200304868N | 启用 |
| 1940 | Heng Leong Engineering Pte. Ltd. 200604886H | 启用 |
| 1941 | Hb Glass & Aluminium Pte. Ltd. 200604092C | 启用 |
| 1942 | Huason Engineering Pte. Ltd. 200517598D | 启用 |
| 1943 | Huang He Logistics Pte. Ltd. 200504599G | 启用 |
| 1944 | Hai Khim Engineering Pte. Ltd. 200402572H | 启用 |
| 1945 | His Intersecure Solutions (s) Pte Ltd 200101615M | 启用 |
| 1946 | Hwa Tong Engineering Pte. Ltd. 200416733C | 启用 |
| 1947 | Holdlandson Construction Pte. Ltd. 200416140N | 启用 |
| 1948 | Huashi Builders Pte. Ltd. 199605299H | 启用 |
| 1949 | Heng Ghee Construction Pte Ltd 199902474Z | 启用 |
| 1950 | Hon Industries Pte. Ltd. 200209767G | 启用 |