| HONG TECK HUAT COLOUR WORLD ENTERPRISE | 31229900A | BLK 10 #02-02 ANSON ROAD INTL PLAZA | 079903 |
| HONG TECK TIMBER CONTRACTOR | 29351400C | BLK 32 #06-10 ANG MO KIO IND. PK. 2 SING INDUSTRIAL COMPLEX | 569510 |
| HONG YI ALUMINIUM WORKS | 53246144D | BLK 6 #06-19 GAMBAS WAY ASCENT@GAMBAS | 756939 |
| HONG YUN ALUMINIUM CONSTRUCTION | 53173162J | BLK 30 #04-15 KAKI BUKIT ROAD 3 EMPIRE TECHNOCENTRE | 417819 |
| HOON HOE BROS RENOVATION & TRADING | 23499100C | BLK 1 #01-37 EVERTON PARK | 081001 |
| HOONG FATT HENG RENOVATION PTE. LTD. | 201500100R | BLK 322F CHANGI ROAD | 419797 |
| HORIZON CONTRACTS PTE LTD | 201411400K | BLK 39 #02-23 WOODLANDS CLOSE MEGA @ WOODLANDS | 737856 |
| HOUSEOFCHAIS PTE. LTD. | 201836449M | BLK 1 #08-01 Kampong Ampat OneKA | 368314 |
| HOUSING DESIGN CONTRACTOR | 53191793B | BLK 109B #05-210 BIDADARI PARK DRIVE | 342109 |
| HOW 2 DESIGN BY TW ENGINEERING | 53236046W | BLK 5062 #01-1293 Ang Mo Kio Industrial Park 2 | 569565 |
| HOWDYMAN PTE. LTD. | 202008828H | BLK 3 #05-01 Ubi Avenue 3 Crocodile House | 408857 |
| HOYI SYSTEM PTE. LTD. | 200600071Z | BLK 280 #03-14 WOODLANDS INDUSTRIAL PARK E5 HARVEST @ WOODLANDS | 757322 |
| HOYO MARKETING PTE. LTD. | 200511768R | BLK 9003 #01-158 TAMPINES STREET 93 TAMPINES INDUSTRIAL PARK A | 528837 |
| HRD PROFESSIONAL HANDYMAN PTE. LTD. | 200410805C | BLK 9003 #04-192 TAMPINES ST 93 TAMPINES INDUSTRIAL PARK A | 528837 |
| HROOF PTE LTD | 201501590E | BLK 18 #10-102 BOON LAY WAY TRADEHUB 21 | 609966 |
| HSE MANAGEMENT PTE. LTD. | 201134852H | BLK 7 #02-01 Gambas Crescent ARK@Gambas | 757087 |
| HT DESIGNN BUILD | 53250410X | BLK 5 #06-33 ANG MO KIO INDUSTRIAL PARK 2A AMK TECH II | 567760 |
| HUA BEE INTERIOR DESIGN & RENOVATION | 53195893X | BLK 30 #07-370 JALAN BAHAGIA | 320030 |
| HUA KWANG FURNITURE & DECORATION | 27937700B | BLK 1 #03-43 QUEENSWAY QUEENSWAY SHOPPING CENTER | 149053 |
| HUA QIN FURNITURE CONSTRUCTION | 44364000M | BLK 20 #04-22 ANG MO KIO IND PK 2A AMK TECHLINK | 567761 |
| HUA SENG CONTRACTORS PTE. LTD. | 201010101G | BLK 11 #07-07 WOODLANDS CLOSE WOODLANDS 11 | 737853 |
| HUA SUN CONSTRUCTION PTE LTD | 198305414E | BLK 7030 #08-38 Ang Mo Kio Ave 5 Northstar @ AMK | 569880 |
| HUANG KEE BUILDING MAINTENANCE PTE LTD | 200311601C | BLK 3 #06-32 Ang Mo Kio St 62 LINK@AMK | 569139 |
| HUASON CONSTRUCTION PTE LTD | 199102849E | BLK 15 #02-09 LOR 8 TOA PAYOH BRADDELL TECH | 319262 |
| HUAT HOME GROOMER'S PTE. LTD. | 201132054C | BLK 10 #03-24 KAKI BUKIT ROAD 2 FIRST EAST CENTRE | 417868 |
| HUGO CONCEPTS | 53147848C | BLK 60 #01-03 Chestnut Ave Tree House | 679517 |
| HUME DESIGN & TILING | 53334681M | BLK 10 #05-65 ADMIRALTY STREET NORTH LINK BUILDING | 757695 |
| HUP ENG CONTRACTOR & CO | 07020800W | BLK 20 #11-1359 ANG MO KIO AVE 10 Midview City | 560436 |
| HUP FENG LOONG BUILDING CONSTRUCTION & RENOVATION | 38342000L | BLK 9 #09-40 Marsiling drive | 730009 |
| HUP HENG LEONG INTERIOR DECORATION (1999) | 52907077D | BLK 471 #11-774 ANG MO KIO AVE 10 | 560471 |