| 3S CONSTRUCTION SERVICES PTE. LTD. | 200201242D | Boon Lay | 41009 | 2002 |
| A TO Z ENGINEERING PTE. LTD. | 200401252D | Canberra | 41009 | 2004 |
| ABL CONSULTANTS PTE. LTD. | 201025911R | Eunos | 71121 | 2010 |
| ABTRIC SYSTEMS PTE LTD | 198402861H | Eunos | 43210 | 1984 |
| ACMES AIRCON & ELECTRICAL ENGINEERING PTE. LTD. | 200005698H | Dairy Farm | 43210 | 2000 |
| ACR ENGRG (S) PTE LTD | 199502616Z | Ang Mo Kio | 71121 | 1995 |
| ADF CONSTRUCTION PTE. LTD. | 200400774G | Admiralty | 41009 | 2004 |
| AECOM SINGAPORE PTE. LTD. | 198502653M | Beach Road | 71121 | 1985 |
| AEMP ENGINEERS PTE LTD | 200104158M | Canberra | 41001 | 2001 |
| AH BOON CIVIL ENGINEERING & BUILDING CONTRACTOR PTE LTD | 198301650R | Admiralty | 41009 | 1983 |
| AIR TECH ENGINEERING AND CONSULTANCY PTE LTD | 199706567M | Eunos | 71121 | 1997 |
| AITECH MECHATRONICS (S) PTE. LTD. | 199601268N | Changi | 71121 | 1996 |
| ALFA TECH VESTASIA PTE. LTD. | 201004553W | Orchard | 43909 | 2010 |
| ALL LINK (21) ENGINEERING PTE. LTD. | 200312740M | Bedok | 43210 | 2003 |
| ALLISON INDUSTRIAL SINGAPORE PTE. LTD. | 199801487E | Boon Lay | 46549 | 1998 |
| ALSYS PTE. LTD. | 200313337N | East Coast | 41001 | 2003 |
| ANG & ONG CONSULTANTS PTE. LTD. | 200513999G | Ang Mo Kio | 71121 | 2005 |
| ARC URBAN SERVICES PTE. LTD. | 200406281M | Eunos | 41009 | 2004 |
| ASPEC LIGHTING & BUILDING SERVICES PTE. LTD. | 199508955C | Ang Mo Kio | 41009 | 1995 |
| ASSOCIATED GEOTECHNICAL SERVICES PTE LTD | 198000930G | Hougang | 43121 | 1980 |
| ATECH FACILITY MAINTENANCE PTE. LTD. | 200302037R | Bedok | 43210 | 2003 |
| ATKINS DESIGN ENGINEERING CONSULTANTS PTE. LTD. | 199608765H | Boat Quay | 71121 | 1996 |
| ATMOSPHERE AIRCONDITIONING & ENGINEERING PTE LTD | 200008268C | Eunos | 28191 | 2000 |
| AURECON SINGAPORE (PTE.) LTD. | 197700873R | Beach Road | 71121 | 1977 |
| AWE ENVIRONMENTAL SYSTEMS PTE LTD | 199905188C | Boon Lay | 71121 | 1999 |
| B M ENGINEERING CONTRACTOR AND TRADING PTE. LTD. | 201216439C | Eunos | 41001 | 2012 |
| BALANCED ENGINEERING & CONSTRUCTION PTE LTD | 200005548K | Boon Lay | 41009 | 2000 |
| BDME PTE. LTD. | 200106104W | Eunos | 71121 | 2001 |
| BELMACS PTE LTD | 199402908H | Alexandra | 71129 | 1994 |
| BESCON CONSULTING ENGINEERS PTE | 198300648N | East Coast | 71121 | 1983 |
| BESCON ENGINEERING SERVICES PTE. LTD. | 198900110W | East Coast | 71121 | 1989 |
| BIMECO PTE. LTD. | 199602472G | Ang Mo Kio | 71121 | 1996 |
| BLUE WIN TECHNOLOGY PTE LTD | 200106215R | Canberra | 41009 | 2001 |
| BMS ENGINEERING AND TRADING PTE. LTD. | 200618787H | Mandai | 43292 | 2006 |
| BROWN CONSULTING PTE. LTD. | 200300889E | Eunos | 71125 | 2003 |
| BRUKER SINGAPORE PTE. LTD. | 199802900R | Buona Vista | 71121 | 1998 |
| BUILDERS 265 PRIVATE LIMITED | 200210636N | Admiralty | 41001 | 2002 |
| BUILDERS PRIDE PTE. LTD. | 200100415G | East Coast | 71121 | 2001 |
| BUILDING SYSTEM AND DIAGNOSTICS PTE. LTD. | 200303877Z | Farrer Park | 71121 | 2003 |
| BUREAU VERITAS BUILDINGS & INFRASTRUCTURE PTE. LTD. | 198905587D | Buona Vista | 41009 | 1989 |
| C@NSPECS PTE. LTD. | 200618293E | Eunos | 41001 | 2006 |
| CALYTRON ENGINEERING PTE LTD | 199004471G | Boon Lay | 71121 | 1990 |
| CAMBRIAN ENGINEERING CORPORATION PTE LTD | 199701215C | Eunos | 43121 | 1997 |
| CAST LABORATORIES PTE LTD | 198100652N | Boon Lay | 71121 | 1981 |
| CAVASIA PTE. LTD. | 200722225C | Buona Vista | 71121 | 2007 |
| CBRE GWS PTE. LTD. | 199602432R | East Coast | 71121 | 1996 |
| CD ENGINEERS PTE. LTD. | 200206278H | Boon Lay | 71121 | 2002 |
| CDA CONSULTANCY PTE. LTD. | 199904472K | Dairy Farm | 71121 | 1999 |
| CE ENGINEERING PTE. LTD. | 200506783K | Boon Lay | 71121 | 2005 |
| CHEMLAB TECHNOLOGIES (SINGAPORE) PTE LTD | 198200254C | MacPherson | 71121 | 1982 |
| CHENG SENG ELECTRIC CO. PTE LTD | 198802500M | Eunos | 43210 | 1988 |
| CHIN LOY ENGINEERING PTE LTD | 200101819E | Admiralty | 43210 | 2001 |
| CHINA HARBOUR (SINGAPORE) ENGINEERING COMPANY PTE. LTD. | 198600104W | Boon Lay | 42909 | 1986 |
| CHINA RAILWAY TUNNEL GROUP CO., LTD. (SINGAPORE BRANCH) | T13FC0140G | MacPherson | 42200 | 2013 |
| CKMBT INTERNATIONAL PTE. LTD. | 200000927K | Eunos | 71121 | 2000 |
| CNS ELECTRICAL PTE LTD | 198201720H | MacPherson | 71121 | 1982 |
| COMFORT AIRCONDITIONING & ENGINEERING PTE. LTD. | 200405637R | Hougang | 71121 | 2004 |
| CONTEEM ENGINEERS PTE LTD | 198301800C | Eunos | 71121 | 1983 |
| COPERION PTE LTD | 199303074R | Orchard | 71121 | 1993 |
| CS CREATIVE PTE. LTD. | 200615047G | Bedok | 43301 | 2006 |
| CS INTERNATIONAL DESIGN CONSORTIUM PTE. LTD. | 199601370N | Dairy Farm | 71121 | 1996 |
| CSE COMMUNICATIONS & SECURITY PTE. LTD. | 199704405G | Boat Quay | 58202 | 1997 |
| CUNDALL SINGAPORE PTE. LTD. | 201111540E | Orchard | 71121 | 2011 |
| CUTECH QUALITY SOLUTIONS PTE. LTD. | 201203708H | Boon Lay | 71121 | 2012 |
| CWD PROJECT INVESTMENT & MANAGEMENT PTE. LTD. | 198301227R | Eunos | 71121 | 1983 |
| DACTT ENGINEERS PTE. LTD. | 197600060K | Eunos | 71121 | 1976 |
| DB ACOUSTICS PTE LTD | 199004490C | Boon Lay | 71121 | 1990 |
| DEMAX MACHINE TOOLS PTE LTD | 198800417N | Admiralty | 71121 | 1988 |
| DENZAI HUATIONG PTE. LTD. | 200503744C | Admiralty | 71121 | 2005 |
| DESHENG ENGINEERING PTE. LTD. | 201224078H | Canberra | 41001 | 2012 |
| DIGO CORPORATION PTE. LTD. | 200313006C | Canberra | 43210 | 2003 |
| DJ BUILDERS & CONTRACTORS PTE LTD | 198702588W | Beach Road | 41009 | 1987 |
| DK OUTSOURCE PTE. LTD. | 200711106W | Pasir Ris | 41009 | 2007 |
| DOKA FORMWORK PTE LTD | 198402903H | Boon Lay | 43909 | 1984 |
| DONJON PTE. LTD. | 200301519H | Boon Lay | 41001 | 2003 |
| DYNAMECH SYSTEM PTE. LTD. | 201538584E | Alexandra | 71121 | 2015 |
| E2000 PTE. LTD. | 199702894R | Beach Road | 71121 | 1997 |
| ECAROH CAPITAL INTERNATIONAL PTE. LTD. | 198104189C | Chinatown | 41009 | 1981 |
| ECAS CONSULTANTS PTE. LTD. | 199609242N | Alexandra | 71121 | 1996 |
| EE HUP CONSTRUCTION PTE LTD | 197902194K | Farrer Park | 42909 | 1979 |
| ENG SENG TECH PTE. LTD. | 200517625R | Mandai | 43904 | 2005 |
| ENGINEERS 2002 PRIVATE LIMITED | 199206778G | Hougang | 71121 | 1992 |
| ENKON INTERNATIONAL CONSULTING ENGINEERS PTE LTD | 199900832M | Ang Mo Kio | 71121 | 1999 |
| EPRO ENGINEERING PTE. LTD. | 200210253H | Admiralty | 43210 | 2002 |
| ETS (S) PTE LTD | 199105713R | Boon Lay | 68101 | 1991 |
| EWC ENGINEERS PTE. LTD. | 197302397K | Balestier | 71121 | 1973 |
| EXCEL MARINE & ENGINEERING PTE. LTD. | 201005995E | Boon Lay | 71121 | 2010 |
| EXCELSIOR ENGINEERING PTE LTD | 198500183E | Boon Lay | 71121 | 1985 |
| EXPANSION SEAL TECHNOLOGIES GROUP ASIA PTE. LTD. | 200100529W | Ang Mo Kio | 28300 | 2001 |
| EXPLOMO CORPORATION PTE. LTD. | 201615186G | Eunos | 74909 | 2016 |
| EXYTE SINGAPORE PTE. LTD. | 199507493C | Boon Lay | 71121 | 1995 |
| FAST FLOW SINGAPORE PTE. LTD. | 199600818C | Tanglin | 42902 | 1996 |
| FAST FLOW SYSTEMS PTE. LTD. | 200208639Z | Tanglin | 42902 | 2002 |
| FAST-TRACK SYSTEMS & SERVICES PTE LTD | 200002876C | Eunos | 71121 | 2000 |
| FIBRWRAP CONSTRUCTION PTE. LTD. | 200203354E | Alexandra | 41001 | 2002 |
| FITTERLAB ENGINEERING PTE. LTD. | 200412868D | Eunos | 71121 | 2004 |
| FLEXCITY ENGINEERING PTE. LTD. | 200409853M | Ang Mo Kio | 43210 | 2004 |
| FONG CONSULT PTE. LTD. | 200900115M | Buona Vista | 71121 | 2009 |
| FYFE ASIA PTE LTD | 200105989N | Alexandra | 41009 | 2001 |
| G - ENERGY GLOBAL PTE. LTD. | 200512464E | MacPherson | 43220 | 2005 |
| G3 SYSTEM PTE LTD | 199701195H | City Hall | 71121 | 1997 |
| GAIN MAX DUCTING ENGRG PTE. LTD. | 199707915C | Pasir Ris | 41001 | 1997 |
| GENERAL ELECTRONICS & INSTRUMENTATION CORPORATION PRIVATE LIMITED | 196600298Z | Farrer Park | 71121 | 1966 |
| GEOSCAN PTE LTD | 198900924K | Eunos | 41001 | 1989 |
| GEOTECH INTERNATIONAL PTE. LTD. | 199402838M | Boat Quay | 42909 | 1994 |
| GIMTRONIC ENGINEERS PTE. LTD. | 200415600Z | MacPherson | 71121 | 2004 |
| GOLDWIN ENGINEERING & CONSTRUCTION PTE. LTD. | 200718918D | Ang Mo Kio | 71121 | 2007 |
| GUTHRIE ENGINEERING (S) PTE LTD | 195100006K | Eunos | 71121 | 1951 |
| HAK KIAN ENTERPRISE PTE LTD | 199205373W | Eunos | 41009 | 1992 |
| HENRY ONG BUILDER PTE LTD | 198903466Z | MacPherson | 41009 | 1989 |
| HEPTACON CONSTRUCTION PTE. LTD. | 200902017M | Boon Lay | 41001 | 2009 |
| HETAT PTE. LTD. | 200303795H | Boon Lay | 71121 | 2003 |
| HKA GLOBAL (SINGAPORE) PTE. LTD. | 198801834C | Beach Road | 71113 | 1988 |
| HOE HOE ENGINEERING PTE LTD | 198300164D | Canberra | 71121 | 1983 |
| HONG HAN INTERNATIONAL PTE. LTD. | 201133089K | Dairy Farm | 43210 | 2011 |
| HPC BUILDERS PTE. LTD. | 200414934H | Alexandra | 41001 | 2004 |
| HY BUILDING & MAINTENANCE SERVICES PTE. LTD. | 200608620D | Eunos | 71121 | 2006 |
| HY M&E CONSULTANCY SERVICES PTE. LTD. | 198205488N | Hougang | 71121 | 1982 |
| IMASPEED PTE. LTD. | 197801674W | Boat Quay | 28300 | 1978 |
| IMCS CONSTRUCTION PTE. LTD. | 200605717M | Canberra | 41009 | 2006 |
| INFIVIC PTE. LTD. | 201837780E | Pasir Ris | 71121 | 2018 |
| INTEGRATED SERVICES MANAGEMENT PTE. LTD. | 199503979H | Ang Mo Kio | 43210 | 1995 |
| INTER-EQUIP SUPPLIES PTE LTD | 198104826N | Ang Mo Kio | 71121 | 1981 |
| INTERNATIONAL TESTING CO. PTE LTD | 199404857Z | Admiralty | 71121 | 1994 |
| INTERSOURCING TECHNOLOGY PTE. LTD. | 200403636M | Pasir Ris | 86901 | 2004 |
| IPM OPERATION & MAINTENANCE SERVICES PTE. LTD. | 199706648M | Boat Quay | 71121 | 1997 |
| ISO-TEAM CORPORATION PTE LTD | 199608218E | Changi | 41009 | 1996 |
| ITEC PROJECT SOLUTIONS PTE. LTD. | 199506627H | Boat Quay | 71121 | 1995 |
| J'S MECH PTE. LTD. | 200507424W | Admiralty | 71121 | 2005 |
| JACK ENTERPRISE PTE. LTD. | 200413238N | Buona Vista | 71121 | 2004 |
| JACOBS INTERNATIONAL CONSULTANTS PTE. LTD. | 198905658K | Beach Road | 71121 | 1989 |
| JD ACOUSTIC PTE. LTD. | 201116582Z | Eunos | 43294 | 2011 |
| JFD SINGAPORE PTE. LTD. | 199600117H | Changi | 71121 | 1996 |
| JFE ENGINEERING CORPORATION SINGAPORE BRANCH | S90FC4092B | Boon Lay | 41001 | 1990 |
| JIAN MAN CONSTRUCTION PTE LTD | 198700419M | Eunos | 41009 | 1987 |
| JIB SPECIALIST CONSULTANTS PTE. LTD. | 201001270W | Hougang | 71125 | 2010 |
| JOHNSON CONTROLS (S) PTE. LTD. | 198205221M | Buona Vista | 71121 | 1982 |
| JRZ ENGINEERING & CONSTRUCTION PTE. LTD. | 201101836D | Alexandra | 71121 | 2011 |
| JS CONSTRUCTION PTE. LTD. | 200307429E | Pasir Ris | 71121 | 2003 |
| JUNNIMED SERVICES PTE. LTD. | 200403128H | Eunos | 46461 | 2004 |
| JURONG INTEGRATED SOLUTIONS PTE. LTD. | 199502564G | Boon Lay | 70201 | 1995 |
| K.B.C. ENGINEERING (PTE. LTD.) | 200810712C | Eunos | 43210 | 2008 |
| K&L ENGINEERING PTE. LTD. | 200313112E | Ang Mo Kio | 71121 | 2003 |
| KAER PTE. LTD. | 199308292K | Buona Vista | 71121 | 1993 |
| KAIZEN PTE. LTD. | 200512144R | Canberra | 71121 | 2005 |
| KAJIMA CORPORATION | S64FC1626A | Bedok | 42100 | 1964 |
| KASSBELL INNOVATIONS PTE. LTD. | 199005676G | Tanglin | 70201 | 1990 |
| KENTON MARINE SINGAPORE PTE. LTD. | 197201423M | Boon Lay | 71121 | 1972 |
| KENWA CONSTRUCTORS PTE. LTD. | 199603603N | Hougang | 41001 | 1996 |
| KILOWATTS ENGINEERING AND CONSTRUCTION PTE LTD | 198303042K | Boon Lay | 41009 | 1983 |
| KIM CHUAN GAS, SANITARY & CONSTRUCTION PTE. LTD. | 199600655K | Changi | 71121 | 1996 |
| KINGSFORCE CONSTRUCTION & ENGINEERING PTE. LTD. | 199903943Z | Alexandra | 71122 | 1999 |
| KISO-JIBAN SINGAPORE PTE LTD | 199606235E | MacPherson | 71121 | 1996 |
| KK LIM & ASSOCIATES PTE. LTD. | 200705663C | Alexandra | 71121 | 2007 |
| KKM CONSTRUCTION & ENGINEERING PTE LTD | 199903135M | City Hall | 71121 | 1999 |
| KONGSBERG NORCONTROL PTE. LTD. | 199705844C | Buona Vista | 71121 | 1997 |
| KONTOURZ PTE. LTD. | 200719021E | Canberra | 43210 | 2007 |
| KOOL-AIR (SINGAPORE) PTE LIMITED | 196600422N | Ang Mo Kio | 43220 | 1966 |
| KYO EI DENKO PTE. LTD. | 200208577N | Boon Lay | 41009 | 2002 |
| L-QUBE PTE. LTD. | 201325890D | Dairy Farm | 43292 | 2013 |
| LCH GEOENG PTE. LTD. | 199705018K | Clementi Park | 71125 | 1997 |
| LEADS ENGINEERING (S) PTE LTD | 198304806R | Mandai | 41009 | 1983 |
| LEADS TECH SYSTEMS PTE. LTD. | 199302889D | Mandai | 43210 | 1993 |
| LEE HONG CONSTRUCTION CO. (PTE ). LTD | 197800544H | Ang Mo Kio | 41009 | 1978 |
| LEWE ENGINEERING PTE LTD | 199004395C | MacPherson | 41009 | 1990 |
| LIFT WORKS PTE. LTD. | 199901647G | Dairy Farm | 43291 | 1999 |
| LIFTRON PTE. LTD. | 200614831H | Eunos | 71121 | 2006 |
| LIUSING ENGINEERING PTE. LTD. | 200500671D | Boon Lay | 71121 | 2005 |
| LKK AUTO CONSULTANTS PTE LTD | 199607198R | Eunos | 71121 | 1996 |
| LSK ENGINEERING (S) PTE LTD | 199000237G | Ang Mo Kio | 43210 | 1990 |
| LSW CONSULTING ENGINEERS PTE. LTD. | 200910996Z | Beach Road | 71121 | 2009 |
| LUFT ENV TECHNOLOGIES PTE. LTD. | 201120683E | Canberra | 41009 | 2011 |
| LWC ALLIANCE PTE. LTD. | 200103734N | Beach Road | 41009 | 2001 |
| M & C ENGINEERING AND TRADING (S) PTE LTD | 199607162M | MacPherson | 26511 | 1996 |
| MACRO SOLUTIONS PTE. LTD. | 200907856K | Boon Lay | 71121 | 2009 |
| MACTECH ENGINEERING & TRADING PTE. LIMITED | 200809572W | Pasir Ris | 42100 | 2008 |
| MAINLAND ENGINEERING PTE. LTD. | 200204229D | Eunos | 71121 | 2002 |
| MAXXA PTE LTD | 199903403R | Dairy Farm | 71121 | 1999 |
| MCCOOL PTE. LTD. | 200203642N | Admiralty | 41001 | 2002 |
| MEINHARDT (SINGAPORE) PTE LTD | 197400199N | Alexandra | 71121 | 1974 |
| MING SIA CONSTRUCTION & ENGINEERING PTE. LTD. | 200703403D | Hougang | 41001 | 2007 |
| MONITORING SOLUTION PROVIDERS PTE. LTD. | 200210421W | Eunos | 71121 | 2002 |
| MOTT MACDONALD SINGAPORE PTE LIMITED | 197302421K | Beach Road | 82999 | 1973 |
| MTECH CONSULTANTS PTE. LTD. | 200206655H | Beach Road | 71121 | 2002 |
| NAVION PTE. LTD. | 201330340D | Clementi Park | 43220 | 2013 |
| NEWSTEPS PTE. LTD. | 200513775H | Eunos | 41009 | 2005 |
| NORTHCROFT LIM CONSULTANTS PTE LTD | 199000328Z | City Hall | 71113 | 1990 |
| NOVEL HOPE CONSTRUCTION PTE LTD | 199901869D | Eunos | 71121 | 1999 |
| NPC CONSTRUCTION PTE LTD | 198305706W | Alexandra | 25999 | 1983 |
| NTH CONSTRUCTION PTE LTD | 198403324N | Eunos | 71121 | 1984 |
| NV5 PRIVATE LIMITED | 199907077R | Boat Quay | 71121 | 1999 |
| O W ELECTRICAL ENGINEERING SERVICE PTE LTD | 198102316R | Boon Lay | 71121 | 1981 |
| OCTA METIER PTE. LTD. | 201835879M | Buona Vista | 41009 | 2018 |
| OGP KONSULT PTE. LTD. | 200720531C | Dairy Farm | 41001 | 2007 |
| OMNI ENGINEERING & TRADING PTE LTD | 199903194W | Boon Lay | 71121 | 1999 |
| ON ENGINEERS PTE. LTD. | 200007306C | Boon Lay | 71121 | 2000 |
| ONESYSTEMS TECHNOLOGIES PTE. LTD. | 200504143Z | Canberra | 71121 | 2005 |
| ONG & ONG PTE. LTD. | 199204938M | Newton | 71111 | 1992 |
| OREX ENGINEERING PTE LTD | 199804045D | Boon Lay | 71121 | 1998 |
| OTAKA ENGINEERING AND SUPPLIES PTE. LTD. | 200511610K | Canberra | 41001 | 2005 |
| P & T CONSULTANTS PTE. LTD. | 198200137N | Beach Road | 71121 | 1982 |
| P.S.E. ENGINEERING & CONSTRUCTION PTE LTD | 199402350W | Boon Lay | 71121 | 1994 |
| PASSIONAIR M&E PTE LTD | 200005084E | Eunos | 71121 | 2000 |
| PERITA ELECTRICAL ENGINEERING PTE LTD | 199000173Z | MacPherson | 43210 | 1990 |
| PH CONSULTING PTE. LTD. | 200921752K | Ang Mo Kio | 71125 | 2009 |
| PIKASA BUILDERS PTE. LTD. | 201113963N | Ang Mo Kio | 71121 | 2011 |
| PLACEMENTS INTERNATIONAL (SG) PTE. LTD. | 198703588N | Boat Quay | 71121 | 1987 |
| PLUS ENGINEERING PTE. LTD. | 199900128D | Bedok | 47414 | 1999 |
| PM LINK PTE LTD | 200102406W | Boon Lay | 71121 | 2001 |
| POWERHOUSE CONTROLS PTE. LTD. | 200602584K | Ang Mo Kio | 43210 | 2006 |
| PQ ENGINEERING PTE. LTD. | 199805596G | Boon Lay | 71121 | 1998 |
| PRECAST CONCRETE PTE. LTD. | 201001696G | Hougang | 43904 | 2010 |
| PRK ENGINEERING PTE. LTD. | 201002052C | Hougang | 71121 | 2010 |
| PROLIGHT ENGINEERING PTE. LTD. | 198601899E | Dairy Farm | 71121 | 1986 |
| R.J. CROCKER CONSULTANTS PTE. LTD. | 199105462E | Mandai | 71121 | 1991 |
| RAMBOLL PTE. LTD. | 199605843G | Boat Quay | 71121 | 1996 |
| RANKINE & HILL (SINGAPORE) PTE. LTD. | 198003384R | Newton | 28300 | 1980 |
| RANKO SECURITY & ENGINEERING PTE. LTD. | 200301843E | MacPherson | 71121 | 2003 |
| RAYMOND CONSTRUCTION PTE LTD | 198801081R | Changi | 41009 | 1988 |
| RDT ENGINEERING PTE LTD | 199908037C | Canberra | 41009 | 1999 |
| RICH CONSTRUCTION & ENGINEERING PTE. LTD. | 200609835R | Farrer Park | 71121 | 2006 |
| RICO CONSTRUCTION & ENGINEERING PTE. LTD. | 200301499R | Ang Mo Kio | 41009 | 2003 |
| RIGEL TECHNOLOGY (S) PTE LTD | 197501991D | Bedok | 71121 | 1975 |
| RONNIE & KOH CONSULTANTS PTE. LTD. | 200612224H | Ang Mo Kio | 71121 | 2006 |
| RSA GLOBAL CONSTRUCTION PTE. LTD. | 200601748R | Eunos | 71121 | 2006 |
| RSP ARCHITECTS PLANNERS & ENGINEERS (PTE) LTD | 199200865W | Boat Quay | 71111 | 1992 |
| S. MARK SERVICES PTE. LTD. | 200501532E | Eunos | 71121 | 2005 |
| S. R. ZHENG CONSTRUCTION PTE. LTD. | 200208080W | Eunos | 71121 | 2002 |
| SAC ENERGY (S) PRIVATE LIMITED | 201511085M | Canberra | 71121 | 2015 |
| SAFETECH DEVICES PTE. LTD. | 200405277H | Eunos | 41001 | 2004 |
| SAVILLS PROJECTS SINGAPORE PTE. LTD. | 200107358K | Boat Quay | 71121 | 2001 |
| SD SOLUTIONS PTE. LTD. | 200612755K | Ang Mo Kio | 41001 | 2006 |
| SEMBCORP ARCHITECTS & ENGINEERS PTE. LTD. | 199202243R | Bedok | 71121 | 1992 |
| SH ENGINEERING & CONSTRUCTION PTE. LTD. | 200923252K | Pasir Ris | 41009 | 2009 |
| SHIMIZU CORPORATION | S73FC2334H | Balestier | 41001 | 1973 |
| SINGAPORE TECHNOLOGICAL INNOVATION SERVICES PTE. LTD. | 200008092E | Boon Lay | 62021 | 2000 |
| SINGAPORE UNION LAND PTE. LTD. | 200413949Z | Clementi Park | 41001 | 2004 |
| SINGBUILD CONSTRUCTION PTE. LTD. | 201612112E | Eunos | 41001 | 2016 |
| SIPM CONSULTANTS PTE. LTD. | 200701816N | Boon Lay | 70201 | 2007 |
| SKYWAVE PTE. LTD. | 199608061D | Alexandra | 71121 | 1996 |
| SKYY CREATIVE CONSULTANT PTE. LTD. | 201017755R | Hougang | 82303 | 2010 |
| SMA MANAGEMENT PTE. LTD. | 198700263C | MacPherson | 71121 | 1987 |
| SOUTH FORWARD CONSTRUCTION PTE. LTD. | 201023371M | Eunos | 41001 | 2010 |
| SQUIRE MECH PRIVATE LIMITED | 197700742M | Boat Quay | 71121 | 1977 |
| ST DIVERS TECHNICS PTE LTD | 200100559R | Boon Lay | 71121 | 2001 |
| ST ENGINEERING MARINE LTD. | 196800180M | Boon Lay | 30110 | 1968 |
| STIB TECHNOLOGIES PTE. LTD. | 200500616C | City Hall | 71121 | 2005 |
| STORMWATER PTE LTD | 199901951W | Canberra | 42902 | 1999 |
| STRATEGIC ENGINEERING & CONSTRUCTION PTE. LTD. | 201407993K | Ang Mo Kio | 71121 | 2014 |
| SURBANA JURONG CONSULTANTS PTE. LTD. | 200304951Z | Boon Lay | 71121 | 2003 |
| SURBANA JURONG INFRASTRUCTURE PTE. LTD. | 199701398K | Boon Lay | 71121 | 1997 |
| SWHAINCHOR CORPORATION PTE LTD | 197700313G | Newton | 41009 | 1977 |
| SWISSLOG HEALTHCARE ASIA PACIFIC PTE. LTD. | 199300788E | Eunos | 71121 | 1993 |
| SYT CONSULTANTS PTE. LTD. | 201102430R | Alexandra | 71121 | 2011 |
| T H CHUAH & PARTNERS LLP | T06LL0829E | Eunos | 71121 | 2006 |
| T-DYNAMIC SYSTEMS PTE LTD | 199602762W | Pasir Ris | 46900 | 1996 |
| TEAM GLASS ENGINEERING PTE. LTD. | 201003103Z | Canberra | 71121 | 2010 |
| TECHNICDELTA ENGINEERING PTE. LTD. | 200201604M | Hougang | 28300 | 2002 |
| TECHNICDELTA M & E ENGINEERING PTE. LTD. | 199005077K | Hougang | 43210 | 1990 |
| TEP CONSULTANTS PTE LTD | 198103043N | Beach Road | 71121 | 1981 |
| THERMAL PRIVATE LIMITED | 197302451H | Boon Lay | 71121 | 1973 |
| THI ENGINEERING & CONSTRUCTION PTE LTD | 200104370Z | Boon Lay | 71121 | 2001 |
| THK DESIGN ENGINEERING PTE. LTD. | 200604527Z | Beach Road | 71121 | 2006 |
| THOMSON INDUSTRIAL ASIA PACIFIC PTE. LTD. | 199701594R | Hougang | 41001 | 1997 |
| TIEN SENG E&C PTE. LTD. | 200919601N | Eunos | 41001 | 2009 |
| TIEN SENG ENGINEERING PTE. LTD. | 201201150E | Eunos | 41001 | 2012 |
| TMS ALLIANCES PTE. LTD. | 200410149N | Changi | 41009 | 2004 |
| TOKYO KEISO ASIA PACIFIC PTE. LTD. | 199701134C | Boon Lay | 71121 | 1997 |
| TONG HAI YANG CONSTRUCTION PTE LTD | 198301377N | Hougang | 41009 | 1983 |
| TOPMOST ENGINEERING PTE LTD | 198702140C | Boon Lay | 28223 | 1987 |
| TOPZONE BUILDERS PTE LTD | 199902962W | Boon Lay | 41009 | 1999 |
| TQC BUILDERS PTE. LTD. | 200710388N | Eunos | 41001 | 2007 |
| TRANSCONTROL TECHNICAL SERVICES (S) PTE LTD | 199105981M | Boon Lay | 71121 | 1991 |
| TTH SERVICES PTE. LTD. | 200307527W | Dairy Farm | 41009 | 2003 |
| TURNER & TOWNSEND PTE. LIMITED | 200001179R | East Coast | 71121 | 2000 |
| TWA CONSULTANTS PTE. LTD. | 198404285D | Ang Mo Kio | 71121 | 1984 |
| TWIN-NET PTE LTD | 198502346H | Eunos | 71121 | 1985 |
| UNIMECH ENGINEERING (PTE) LTD | 197300517E | Balestier | 41001 | 1973 |
| UNIPAC CONSULTING ENGINEERS LLP | T06LL0233L | Beach Road | 71121 | 2006 |
| UOL PROJECT MANAGEMENT SERVICES PTE. LTD. | 200200102C | Newton | 71121 | 2002 |
| VISION SECURITY TECHNOLOGIES PTE. LTD. | 200412967G | Ang Mo Kio | 71121 | 2004 |
| VLAND CONSULTANTS PTE. LTD. | 201209861C | Eunos | 71121 | 2012 |
| VMK ENGINEERING PTE. LTD. | 200610096W | East Coast | 71121 | 2006 |
| VSL SINGAPORE PTE. LTD. | 197501943C | Ang Mo Kio | 71121 | 1975 |
| WATERCRAFT ENGINEERING PTE LTD | 199805340H | Canberra | 81292 | 1998 |
| WELL & ABLE INTERNATIONAL PTE. LTD. | 198804440C | MacPherson | 41009 | 1988 |
| WESMECH ENGINEERING PTE LTD | 200102890E | Dairy Farm | 71121 | 2001 |
| WORLEY PTE. LIMITED | 199401759W | Buona Vista | 71121 | 1994 |
| WRX ENGINEERS PTE. LTD. | 201112863D | Beach Road | 71121 | 2011 |
| WYNNCORP ENGINEERING & CONSTRUCTION PTE. LTD. | 200710978H | Canberra | 71121 | 2007 |
| YEE CONSTRUCTION AND RENOVATION PTE. LTD. | 200301525W | Eunos | 43301 | 2003 |
| YEE HONG PTE LTD | 197600657C | Boon Lay | 41009 | 1976 |
| YINSHENG ENGINEERING PTE. LTD. | 201900106R | Admiralty | 41001 | 2019 |
| YPP PTE LTD | 199602244C | Eunos | 43220 | 1996 |
| YWL ENGINEERING PTE LTD | 199804921E | Boat Quay | 71121 | 1998 |
| 8BUILD PTE. LTD. Not yet published | 201015289M | Chinatown | 41001 | 2010 |
| ACM CONTRACTING PTE. LTD. Not yet published | 201015903G | Canberra | 43210 | 2010 |
| AGRESSO SERVICES PTE. LTD. Not yet published | 200910249G | Canberra | 28191 | 2009 |
| AMPERE ENGINEERING PTE. LTD. Not yet published | 201021612W | Boat Quay | 71129 | 2010 |
| ARCADE ENGINEERING (ASIA) PTE. LTD. Not yet published | 200703734R | Canberra | 71121 | 2007 |
| ARCHTECH ENGINEERING PTE. LTD. Not yet published | 200806697D | Changi | 43210 | 2008 |
| ATC CONSTRUCTION PTE. LTD. Not yet published | 200502862D | Boon Lay | 71121 | 2005 |
| AUTOMATED LAB PTE. LTD. Not yet published | 200922236M | Eunos | 43292 | 2009 |
| BYARD SPIRAL MILL ENGINEERING PTE. LTD. Not yet published | 200614578M | Pasir Ris | 71129 | 2006 |
| CAMPO ENGINEERING PTE. LTD. Not yet published | 201010436D | Eunos | 43299 | 2010 |
| CAPSTONE ALUMINIUM PTE. LTD. Not yet published | 200907575C | Dairy Farm | 71121 | 2009 |
| CES BUILDING AND CONSTRUCTION PTE. LTD. Not yet published | 200802641H | Hougang | 71121 | 2008 |
| CM WERKZ PTE. LTD. Not yet published | 201006401K | Eunos | 71129 | 2010 |
| CONSTRUKT PTE. LTD. Not yet published | 201103561R | Admiralty | 41001 | 2011 |
| COOLZONE ENGINEERING PTE. LTD. Not yet published | 201024565H | Balestier | 35300 | 2010 |
| CTG ENGINEERING & TRADING PTE. LTD. Not yet published | 200708178E | Admiralty | 71121 | 2007 |
| DK WORKZ PTE. LTD. Not yet published | 201105693D | Pasir Ris | 43210 | 2011 |
| DOVER ENVIRONMENTAL ENGINEERING PTE. LTD. Not yet published | 200911319Z | Boon Lay | 71129 | 2009 |
| DP M&E ENGINEERING PTE. LTD. Not yet published | 200900960W | Boon Lay | 41009 | 2009 |
| DYNAMICX CONSTRUCTION PTE. LTD. Not yet published | 200307424K | MacPherson | 71121 | 2003 |
| EVEREST ENGINEERING & CONSTRUCTION PTE. LTD. Not yet published | 200918875Z | Boon Lay | 71121 | 2009 |
| EZRA & MACQUARIE PTE. LTD. Not yet published | 200801907K | Hougang | 71121 | 2008 |
| FIBER TECH SOLUTIONS PTE. LTD. Not yet published | 200723441H | Eunos | 71121 | 2007 |
| FSP PTE. LTD. Not yet published | 200407078D | Bedok | 43291 | 2004 |
| FUJIAN ANZHUANG (S) ENGINEERING PTE. LTD. Not yet published | 200801894W | MacPherson | 43220 | 2008 |
| G H ONG ENGINEERING PTE. LTD. Not yet published | 201109632C | Boon Lay | 41001 | 2011 |
| GEOHAN PTE. LTD. Not yet published | 200707631N | Admiralty | 43901 | 2007 |
| GERRICH INTERNATIONAL PTE. LTD. Not yet published | 200804913H | Eunos | 71121 | 2008 |
| GMC INTEGRATED PTE. LTD. Not yet published | 200619445H | East Coast | 71121 | 2006 |
| GNG CONSULTANTS PTE. LTD. Not yet published | 200913174E | Alexandra | 71121 | 2009 |
| GOLD WIND ENGINEERING (S) PTE. LTD. Not yet published | 201106694K | Admiralty | 71121 | 2011 |
| GREEN ENGINEERING & CONSTRUCTION PTE. LTD. Not yet published | 201009623R | Balestier | 41009 | 2010 |
| GREEN ENGINEERING AND SERVICES LLP Not yet published | T10LL1179B | Hougang | 71121 | 2010 |
| HELPLINE ENGINEERING PTE. LTD. Not yet published | 200816574H | Boon Lay | 28300 | 2008 |
| HOE GUAN ENTERPRISE PTE. LTD. Not yet published | 200804024C | Canberra | 42100 | 2008 |
| HONG RONG CONSTRUCTION PRIVATE LIMITED Not yet published | 200711093E | Eunos | 71121 | 2007 |
| HUB BEE CORPORATION PTE. LTD. Not yet published | 200807699C | Admiralty | 41009 | 2008 |
| HUB SENG CONSTRUCTION & TRADING PTE. LTD. Not yet published | 200700074R | Eunos | 71121 | 2007 |
| ICON ENGINEERS LLP Not yet published | T07LL0298D | Dairy Farm | 71121 | 2007 |
| IMPEL TECHNOLOGIES PTE. LTD. Not yet published | 200706613N | Buona Vista | 71121 | 2007 |
| KAI LUN ENGINEERING PTE. LTD. Not yet published | 201011032W | Hougang | 71121 | 2010 |
| LIAN TONG ELECTRICAL ENGINEERING PRIVATE LIMITED Not yet published | 201000712Z | Eunos | 43210 | 2010 |
| MAGNETO POWER PTE. LTD. Not yet published | 200405144D | Ang Mo Kio | 43210 | 2004 |
| MAGNETO TECHNOLOGY PTE. LTD. Not yet published | 200808254N | Ang Mo Kio | 71121 | 2008 |
| MAINSOLUTIONS PTE. LTD. Not yet published | 200605079H | Eunos | 71121 | 2006 |
| MECHTRONS PTE. LTD. Not yet published | 201020813C | Boon Lay | 71121 | 2010 |
| MIDAS ENGINEERING & SERVICES PRIVATE LIMITED Not yet published | 200720526D | Ang Mo Kio | 71121 | 2007 |
| MILLENNIUM INTERNATIONAL BUILDERS PTE. LTD. Not yet published | 200815288E | MacPherson | 71121 | 2008 |
| MODERN ENGINEERING & BUILDING SERVICES PTE. LTD. Not yet published | 201005140K | Admiralty | 71121 | 2010 |
| NEK ELECTRICAL ENGINEERING PTE. LTD. Not yet published | 201104302W | Mandai | 43210 | 2011 |
| PIKASA CONSTRUCTION ENGINEERING PTE. LTD. Not yet published | 201106725G | Ang Mo Kio | 41001 | 2011 |
| RICH ENGINEERING PTE. LTD. Not yet published | 200907005Z | MacPherson | 71121 | 2009 |
| SAS M & E PTE. LTD. Not yet published | 201019107Z | Dairy Farm | 43220 | 2010 |
| SENG HUP CHAI ENGINEERING PTE. LTD. Not yet published | 200800176R | Admiralty | 71121 | 2008 |
| SETSCO CONSULTANCY INTERNATIONAL PTE. LTD. Not yet published | 200817950N | Buona Vista | 42909 | 2008 |
| SG E&C PTE. LTD. Not yet published | 200808717H | Canberra | 71121 | 2008 |
| SING FU SENG BUILDING CONSTRUCTION PTE. LTD. Not yet published | 201101298N | Chinatown | 41009 | 2011 |
| SQ GROUP PTE. LTD. Not yet published | 200400931M | Boat Quay | 71121 | 2004 |
| SRM ELECTRICAL ENGINEERING PTE. LTD. Not yet published | 201108466W | Eunos | 43210 | 2011 |
| STACE INTEGRATED BUILDING SERVICES PTE. LTD. Not yet published | 200912915Z | Ang Mo Kio | 71121 | 2009 |
| SURBANA CONSULTANTS PTE. LTD. Not yet published | 200302582W | Boon Lay | 71121 | 2003 |
| SYNERGY BUILDING SERVICES PTE. LTD. Not yet published | 200910536E | Dairy Farm | 43210 | 2009 |
| THREESIXTY COST MANAGEMENT PTE. LTD. Not yet published | 200305143H | Boon Lay | 71121 | 2003 |
| TORA DENKI M&E PTE. LTD. Not yet published | 201024130W | Balestier | 43210 | 2010 |
| TSM CONSULTANCY PTE. LTD. Not yet published | 200416745R | MacPherson | 71121 | 2004 |
| UNITED ASPHALT PTE. LTD. Not yet published | 200905093Z | Admiralty | 42200 | 2009 |
| VENTURE INTEGRATED PTE. LTD. Not yet published | 200708519W | Balestier | 41009 | 2007 |
| VISION FUTURE PTE. LTD. Not yet published | 200616193W | Eunos | 71121 | 2006 |
| VOLT ENGINEERING SERVICES PTE. LTD. Not yet published | 200917561D | Eunos | 43210 | 2009 |
| WELDONE ELECTRICAL ENGINEERING PTE. LTD. Not yet published | 200918383W | MacPherson | 43210 | 2009 |
| WESTLITE ACCOMMODATION MANAGEMENT PTE. LTD. Not yet published | 200411537N | Eunos | 64202 | 2004 |
| WILLY DESIGN & ENGINEERING PTE. LTD. Not yet published | 200808003K | Pasir Ris | 71121 | 2008 |
| WKH CONSTRUCTION & ENGINEERING PTE. LTD. Not yet published | 200723128R | Canberra | 71121 | 2007 |
| XUAN-U INTERIOR CONSTRUCTION & ENGINEERING PTE. LTD. Not yet published | 200823564E | MacPherson | 71121 | 2008 |
| YONG TAI YONG ELECTRICAL ENGINEERING PTE. LTD. Not yet published | 200912096C | Mandai | 71121 | 2009 |