North America

Our North America team provides full-service EPCC capability for projects in the LNG, refining, petrochemical, chemical, and midstream industries. Our in-house engineering and direct hire construction and commissioning capabilities include piping, civil, mechanical and equipment setting, E&I, as well as specialty crafts.

Our self-perform, construct-only services are what set us apart in the Downstream sector. Clough manages the construction process from beginning to end and provides schedule optimization and cost efficiencies with a single point-of-contact approach to each client.

We also provide multidisciplined engineering, integrated EPCM-EPC solutions and operational readiness and commissioning to our clients in North America.



Clough provides a full spectrum of services to the energy market, encompassing engineering, procurement, construction, commissioning and asset support for upstream, downstream, onshore and offshore oil & gas and petrochemical facilities.

Specialist services includes:

  • Oil & Gas
  • Coal Seam Gas
  • Petrochemicals
  • Renewable Energy

Clough has been delivering infrastructure projects for over 60 years. In 1959 Clough completed its first major bridge project and since that time has been successfully delivering major public and private infrastructure projects.

Specialist services include:

  • Marine
  • Water and wastewater
  • Power
  • Roads and bridges

Clough has been serving mining and resources clients for over 55 years. Our comprehensive engineering, procurement and construction (EPC) services assist clients to extract, process, store and export a variety of minerals including iron ore, coal, alumina, aluminium, copper, gold, limestone, mineral sands, nickel, pig iron, zinc and lead. Clough’s fully integrated EPC services provide value at every phase of a project.



CH·IV International (CH·IV) is a global engineering and consulting firm that provides full spectrum solutions to asset developers, regulators, owners, operators and lenders across the energy, infrastructure and resources industries. The team of expert advisors work in close partnership with their clients to ensure that their assets are developed, designed, constructed and operated safely, in accordance with the project’s technical and commercial specifications while adhering to regulatory and environmental requirements. CH·IV is the independent consulting arm of Clough, providing fully integrated, end-to-end solutions.

With over 150 years of combined engineering experience, CH·IV takes pride in maintaining the highest standards of technical accuracy, proficiency and integrity, setting new safety and performance benchmarks every single day. CH·IV was established in 2001 and is a wholly owned company of Clough.

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