Engineering-procurement-construction (EPC) companies deliver projects under a single contract, taking responsibility for design, materials and building works. The model transfers project risks from owners to contractors, while providing as much certainty around cost as is possible on large construction projects.
The approach emerged in the 1970s oil and gas sector before expanding into power generation, infrastructure and industrial facilities.
EPC firms evolved from construction-only roots to handle engineering and procurement. Digital technologies now enable virtual design, remote monitoring and automated procurement. Many EPC contractors developed specialist divisions for renewables, life sciences and data centres.
The model suits projects with defined specifications. Oil companies use EPC for refineries, utilities for power plants, and manufacturers for production facilities. Governments employ EPC for transport infrastructure. Pharmaceutical companies commission facilities through EPC contracts. Mining firms rely on EPC delivery for processing plants.
Fluor Corporation
Market cap: $4.85bn
HQ: US
Fluor Corporation provides engineering, procurement, construction and maintenance services across energy, chemicals, infrastructure and mining sectors. The firm's EPC portfolio evolved from oil and gas roots to include renewable energy and critical minerals projects. Its modular construction approach reduces on-site labour requirements.
The company works on government contracts as well as commercial, and its clients include Shell, ExxonMobil and Rio Tinto. Fluor maintains fabrication yards in Mexico, Canada and the Philippines.
Jacobs Solutions
Market cap: $16.41bn
HQ: US
Jacobs Solutions operates across infrastructure, national security and space sectors. The company transformed its EPC capabilities from traditional infrastructure to include nuclear decommissioning and environmental remediation. Its digital twin technology integrates with construction execution. Jacobs delivers projects for NASA, the US Department of Defense and Network Rail. The firm's programme management services support complex infrastructure schemes including London's Thames Tideway tunnel.
Quanta Services
Market cap: $24.15bn
HQ: US
Quanta Services specialises in electric power, renewable energy and communications infrastructure construction. The firm expanded its EPC services from power line construction to encompass renewable energy facilities and battery storage systems. Quanta maintains a fleet of specialised construction equipment and trains workers at its own facilities.
The company works with utilities including American Electric Power and National Grid. Its underground construction division serves telecommunications providers.
Aecom
Market cap: $24.53bn
HQ: US
AECOM delivers infrastructure projects across transportation, water and defence sectors. The firm's EPC capabilities developed from civil engineering origins to include environmental restoration and disaster recovery services. AECOM implements building information modelling throughout project delivery.
The company serves government agencies including the US Army Corps of Engineers. Its construction services support major transit schemes including Crossrail and Sydney Metro.
Emerson Electric
Market cap: $50.99bn
HQ: US
Emerson Electric provides automation technologies and engineering services. The company evolved its EPC offerings from industrial systems to incorporate digital transformation and sustainability solutions.
Its PlantWeb digital ecosystem enables connected construction and operations. Emerson delivers projects for Shell, Saudi Aramco and BASF. The firm's expertise spans process industries including petrochemicals, life sciences and power generation.
Honeywell International
Market cap: $131.37bn
HQ: US
Honeywell operates across aerospace, building technologies and performance materials sectors. The firm expanded its EPC services from control systems to include integrated building management and industrial automation.
Its Forge platform enables construction monitoring and lifecycle management. Honeywell executes projects for Boeing, Airbus and Johnson Controls. The company provides renewable energy solutions including battery storage systems.
Siemens AG
Market cap: $132.68bn
HQ: Germany
Siemens delivers digital industry, smart infrastructure and mobility solutions. The firm transformed its EPC capabilities from electrical systems to encompass grid modernisation and smart city projects. Its COMOS platform integrates engineering and construction workflows. Siemens serves Deutsche Bahn, Network Rail and ADNOC.
The company's electrification expertise supports major rail and metro schemes worldwide.
General Electric
Market cap: $136.80bn
HQ: US
GE focuses on power generation, renewable energy and aerospace. The firm's EPC portfolio shifted from conventional power plants to include offshore wind and grid modernisation projects. Its digital tools enable advanced construction planning and asset management.
GE delivers projects for EDF, Iberdrola and Enel. The company maintains manufacturing facilities for turbines and generators globally.
ABB
Market cap: $140.22bn
HQ: Switzerland
ABB provides electrification and automation technology. The company developed its EPC services from power distribution to incorporate robotics and industrial digitisation. Its Ability platform supports construction and commissioning processes. ABB executes projects for Shell, Tesla and BMW. The firm's expertise spans marine vessels, data centres and manufacturing facilities. Its electrification solutions support transport infrastructure worldwide.
Danaher Corporation
Market cap: $193.64bn
HQ: US
Danaher Corporation operates in life sciences, diagnostics and environmental solutions. The firm expanded its EPC capabilities from water treatment to include bioprocessing facilities and laboratory infrastructure.
Its DBS toolset standardises project delivery methods. Danaher serves pharmaceutical companies including Pfizer and Novartis. The company provides water and product quality monitoring systems for industrial facilities.
