Construction & Built Environment
Leading engineering companies in Singapore
Singapore grades its engineering trade: a contractor's registration class with the Building and Construction Authority decides how large a public tender it may hold, and the top L6 grades mark the firms trusted with the island's power, cooling and plant. The engineering companies in Singapore below run that spectrum — the EPC groups that build refineries and terminals on Jurong Island, the M&E contractors wiring data centres and rail depots, the process-automation integrators, and the marine engineers who keep ships' machinery running. An unranked set from the Singapore Industry Index's record; the M&E and building-services specialists also have a dedicated list.
The companies
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ABB (Singapore)
The regional arm of the Swiss-Swedish automation major, long-established in Singapore (around 900 staff) with a main office at Ayer Rajah and a Tuas service centre. Supplies industrial robots, PLC and control systems, drives, process automation and industrial software, with a local Robotics Applications Center. Its Marine & Ports business covers switchboards, drives, power distribution, propulsion control and vessel digital and monitoring solutions.
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CSE Global
An SGX-listed systems integrator delivering turnkey process control, automation, telemetry and communications systems (PLC/SCADA/DCS, control panels, field E&I) for the energy, oil-and-gas, mining, infrastructure and utilities sectors across Asia-Pacific, the Americas and the Middle East. The largest and most-established name in the record for turnkey control-system integration, skewed to energy and infrastructure EPC.
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Cyclect Group
One of Singapore's most established M&E and MEICA (multi-discipline systems-integration) groups, delivering integrated energy solutions across cooling, solar, cogeneration and heat recovery plus integrated facilities management, and holding the BCA ME05 L6 electrical register grade. Sectors served: data centres, semiconductor, pharma, F&B and chemicals manufacturing, infrastructure (airports, ports, water and waste-to-energy) and marine. HQ at Tuas View Crescent.
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DLM Pte Ltd
Holds unrestricted BCA L6 across ME01 (ACMV), ME05 (Electrical) and ME15 (Integrated Building Services). Builds and maintains M&E for data centres (Tier redundancy, liquid cooling), advanced manufacturing and semiconductors, cleanrooms and pharma labs, with LV/HV maintenance, transformer and HT switchgear testing and AI-driven chiller and energy optimisation.
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Emerson Automation Solutions, Singapore
A global OEM supplying DeltaV DCS, Rosemount measurement, Fisher control valves and process analysers; operates a dedicated actuation-technologies and final-control automation centre in Singapore assembling and servicing valve actuation for the region's process industries.
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Goltens Singapore
The Singapore arm of the global Goltens group, focused on in-situ (on-board) machining, marine engine services and green-technology retrofit. It runs turnkey scrubber (EGCS) and ballast-water-treatment (BWTS) retrofit projects, with CNC in-situ machining of crankshafts, bedplates and large engine components to around 10 tonnes, line boring, laser alignment, metal stitching, white-metal bearing re-metalling, and sterntube and shaft-alignment work to class. Class approvals from DNV, LR, BV, ABS and ClassNK.
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Hiap Seng Industries
A long-established process-plant EPC and fabrication contractor for oil, gas and petrochemical clients, based at Tuas with a regional Asia-Pacific presence. Provides plant maintenance, turnaround and shutdown services; fabricates pressure vessels, heat exchangers, process modules and gas compressors; and builds onshore tank farms, terminals and gas-metering facilities. Both an EPC contractor and a fabricator, with a track record on Jurong Island and regional LNG and petrochemical facilities.
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Jurong Engineering Limited (JEL)
A major Singapore EPC and construction contractor with a large completed-project base across refineries, petrochemical, power and desalination plants. Runs two pipe and pipe-support fabrication workshops (Singapore and Thailand) handling super-duplex stainless piping, spool fit-up, welding and blasting and painting, plus mechanical erection of turbines, generators and HRSGs.
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King Wan Construction
An M&E contractor holding the top BCA ME12 (Plumbing & Sanitary Works) grade L6 — among only six firms at that level — and BCA L6 for Electrical Engineering, Integrated Building Services and ACMV. Self-performs whole-building electrical, ELV, communications and security, plumbing, sanitary and ACMV across residential, commercial and institutional projects as part of the listed King Wan Corporation group.
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MAN Energy Solutions Singapore (PrimeServ)
The OEM service hub for MAN B&W two-stroke and four-stroke engines, and MAN's largest service hub outside Europe, attending around 1,000 vessels a year. Dedicated departments cover piston, cylinder-head, fuel-equipment and turbocharger reconditioning, alongside CNC machining and an 18,000 m2 parts warehouse holding some 40,000 SKUs. Provides 24/7 attendance and on-site recovery for major repairs.
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Mun Siong Engineering
A five-decade process-plant specialist at 26 Gul Way serving the refining and petrochemical majors. Covers plant, term and turnaround maintenance — rotating and static equipment, furnace re-coiling and heat-exchanger hydrojetting; ASME-code pressure vessels, shell-and-tube exchangers, modules and pipe spools from workshops running automated spool output; API 650/620 storage-tank build and API 653 rehabilitation; and an E&I division for field instruments, DCS-panel and analyser-house work, calibration and loop checking.
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PEC Ltd
An SGX-listed plant-and-terminal engineering contractor and one of Singapore's largest, combining project works (EPC) with integrated turnaround and standing maintenance for refineries, petrochemical plants and bulk-liquid terminals on Jurong Island and across the Gulf. Scope spans ASME-stamped pressure-vessel and piping fabrication, static and rotating equipment, storage-tank and terminal services, and electrical and instrumentation; peak turnaround mobilisation runs into the thousands of workers. Its module-fabrication arm also serves offshore markets.
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Puretech Engineering is a Singapore mechanical and electrical contractor established in 1995, wiring rail depots, airport terminals, shipyards and commercial buildings. Its current book spans four LTA rail contracts — Kim Chuan Depot, Hume Station, the Sengkang-Punggol LRT depot and Tengah Depot — plus the Shaw Tower redevelopment and the Mandai Lake Road resort development, and it fabricates switchboards and control panels rated to 22kV.
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Rotary Engineering
A long-established Jurong Island EPC and plant-services group (privatised in 2021) whose core strength is turnkey onshore plant and terminal EPC — tank farms and refineries. Delivers integrated maintenance, shutdown and turnaround; operates its own fabrication yards for pressure vessels, pipe spools and structural steel to ASME code stamps; builds storage tankage; and, through Rotary Electrical & Instrumentation, provides field instruments, gas and fire detection, SCADA/PLC, analyser integration and in-house calibration labs.
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Sanli M&E Engineering
The M&E arm of SGX Catalist-listed Sanli Environmental, on the BCA ME05 L6 register, delivering electrical and mechanical work for water, environmental and building projects.
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ST Engineering (Urban Solutions)
The urban and smart-infrastructure line of ST Engineering. Its Cloud & Data Centre Solutions entity holds BCA ME05 L6 for large power and electrical scopes in the data-centre segment, and its AGIL Smart Energy Building line delivers integrated building management, energy-decarbonisation dashboards and integrated security management (AGIL Secure) for smart-estate and campus deployments.
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Tai Sin Electric
An SGX-listed total power-distribution solutions provider manufacturing LV/MV and instrumentation cables and supplying power-distribution products across industrial, commercial and marine, with switchboard arms in the group.
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Tru-Marine
An independent turbocharger, governor and fuel-system MRO house globally headquartered in Singapore at Tuas Basin Link, offering overhaul, laser-cladding repair and spares. Authorised by Napier, Kawasaki, MHI, KBB, Bosch, Woodward and Garrett, with a 24-hour hotline and maker-trained engineers across a global station network.
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UG M&E Pte Ltd
Carries one of the fullest L6 stacks on the BCA ME register — ME01 (ACMV) L6, ME05 (Electrical) L6, ME11 (Mechanical Engineering) L6 and ME15 (Integrated Building Services) L6 — as a specialist in integrated M&E installation.
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Wah Loon Engineering
A full-scope integrated M&E contractor across Singapore and Malaysia, part of VINCI Energies, self-performing mechanical, electrical, air-conditioning and mechanical ventilation, systems integration and fire protection within building packages. One of the larger established M&E houses, active in data-centre and industrial M&E.
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Wartsila Singapore
The Singapore arm of the Finnish marine major, running OEM lifecycle support on three lines: maintenance and repair for Wartsila two- and four-stroke engines and other makers' units; electrical and automation service covering automation systems, drives, switchboards and power management; and propulsion work from an 18,600 m2 workshop, with stated competence in underwater thruster and propeller repair. Runs 24/7 spare-parts and field-service support for the region.
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Yokogawa Engineering Asia, Singapore
Operates Yokogawa's South-East Asia head office and engineering centre in Singapore; supplies CENTUM VP DCS, ProSafe-RS safety instrumented systems, field instruments and process analysers, with dedicated control-and-safety-system and SIS (IEC 61511) offerings for oil, gas and petrochemical plants.
How this list was made
Engineering companies operating in Singapore across plant and terminal EPC, mechanical and electrical contracting, process automation and marine engineering, identified from public record and the Singapore Industry Index's own research, presented as an unranked set.
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