Costain - EPC company profile

Costain: Explore engineering capabilities, representative projects and official company contacts.

Costain — Engineering and infrastructure solutions for critical UK systems

Costain is a UK infrastructure solutions company founded in 1865. It combines engineering, consultancy, digital and construction capabilities across transport, water, energy and defence. The company works as contractor, delivery partner or adviser depending on the appointment; framework ceilings and programme estimates are not individual Costain contract values.
  • Legal name: Costain Group PLC
  • Headquarters: London, England, United Kingdom
  • Founded: 1865
  • Official website: Costain
  • URL: https://voltformer.com/epc-contractors/costain
  • Markdown: https://voltformer.com/epc-contractors/costain.md
  • JSON: https://voltformer.com/epc-contractors/costain.json

CEO and leadership profile

Alex Vaughan

Chief Executive Officer

Appointed CEO in May 2019; joined Costain in 1992 and led growth in its consultancy services. A chartered quantity surveyor with more than 30 years in infrastructure.

  • In role since: 2019-05
  • Sources checked: 2026-10-11
  • Profile: Alex Vaughan

Costain · Executive Board

How to select an EPC contractor

EPC means engineering, procurement and construction. Compare contractors by project technology, country, voltage level and contractual delivery scope.

Directory methodology

This directory presents company profiles, not a scored ranking or certification. Company-wide experience may include engineering, EPCM, equipment supply and consortium roles. Confirm the exact role, current qualifications and project references with the official company before shortlisting.

What should an EPC enquiry include?

Specify the project country, capacity, grid voltage, single-line diagram, site conditions, scope boundaries, target schedule and acceptance tests. Clarify who owns permitting, civil works, grid studies, commissioning and performance guarantees.

Equipment enquiries submitted here go to Voltformer. Contact the listed company directly for its EPC services.

Engineering specializations

  • Transport infrastructure
  • Water and wastewater
  • Energy and defence infrastructure
  • Project delivery and programme integration

Declared capabilities

  • Basic and detailed engineering: Listed capability; confirm project-specific scope
  • Procurement and supply: Listed capability; confirm project-specific scope
  • Civil and structural construction: Listed capability; confirm project-specific scope
  • Testing and commissioning: Listed capability; confirm project-specific scope
  • High-voltage substation EPC: Not listed
  • Transmission lines: Not listed
  • Turnkey power plant EPC: Not listed
  • Grid interconnection: Not listed

Representative projects

HS2 tunnel and lineside mechanical and electrical systems

  • Capacity / scope: Minimum £400m contract; seven-year period starting Q1 2025, with possible extensions
  • Country: United Kingdom | Client: HS2 Ltd
  • Description: Awarded on 3 December 2024, the contract covers design, supply, manufacture, installation, testing and commissioning of HS2 tunnel and lineside M&E systems. Scope includes tunnel services and cross-passages, low-voltage power and distribution on the open route, and tunnel ventilation systems. The minimum £400m is Costain’s stated contract value.
  • Technologies: Tunnel M&E and ventilation systems
  • Original source: https://www.costain.com/news/press-releases/2024/costain-wins-major-hs2-rail-systems-tunnel-and-lineside-me-contract/

Thames Tideway Tunnel

South Kensington station upgrade

Technical services

  • Infrastructure solutions: Engineering, consultancy, digital services and delivery for transport, water, energy and defence clients.
  • Engineering and design coordination: Technical development, design management and coordination of multidisciplinary infrastructure packages.
  • Construction and installation delivery: Construction, systems installation and interface management within contracted packages, alliances or joint ventures.
  • Asset maintenance and lifecycle support: Inspection, maintenance, renewals and operational support for infrastructure and building assets where included in the appointed scope.

Standards and certifications

Official contacts

  • Address: London, England, United Kingdom
  • Official website: https://www.costain.com/contact-us/

Reference statistics

  • Founded: 1865
  • Strategic markets: Transport, water, energy, defence
  • Ownership: Publicly listed group

Company and energy news

Other languages

EPC contractors · Voltformer catalog

CEO and leadership profile

Alex Vaughan

Chief Executive Officer

Appointed CEO in May 2019; joined Costain in 1992 and led growth in its consultancy services. A chartered quantity surveyor with more than 30 years in infrastructure.

In role since
2019-05
Sources checked

Official profile and sources

Company news

How to select an EPC contractor

EPC means engineering, procurement and construction. Compare contractors by project technology, country, voltage level and contractual delivery scope.

Directory methodology

This directory presents company profiles, not a scored ranking or certification. Company-wide experience may include engineering, EPCM, equipment supply and consortium roles. Confirm the exact role, current qualifications and project references with the official company before shortlisting.

What should an EPC enquiry include?

Specify the project country, capacity, grid voltage, single-line diagram, site conditions, scope boundaries, target schedule and acceptance tests. Clarify who owns permitting, civil works, grid studies, commissioning and performance guarantees.

Equipment enquiries submitted here go to Voltformer. Contact the listed company directly for its EPC services.

Company information is translated from the same reference record; official names and technical ratings are preserved.