About Costain
Costain is a company based in Aberdeen (United Kingdom) founded in 1865 was acquired by Inflexion in August 2015. The company has 2,170 employees. Costain has completed 4 acquisitions, including ClerkMaxwell, EPC Offshore and Rhead Group.
- Headquarter Aberdeen, United Kingdom
- Employees 2,170
- Stage Public
- SectorsIndustrial Goods & Manufacturing
- Email••••••••
- Phone•••• ••••
- Website costain.com
- Social LinkedIn X Facebook
- Acquired by Inflexion (Aug 2015)
- Legal Name Costain Group Plc
- Annual Revenue$1.41 B (USD)-16.42as on Dec 31, 2025
- Net Profit$50.23 M (USD)21.9as on Dec 31, 2025
- EBITDA$82.14 M (USD)25.26as on Dec 31, 2025
- Latest Funding Round$123.98M (USD), Post-IPO
May 2020
- InvestorsInflexion
& 1 more
- Employee Count2,170
- Investments & AcquisitionsClerkMaxwell
& 3 more
- Acquired byInflexion
(Aug 2015)
Funding Insights of Costain
- Total Rounds 4
- Last Round Post-IPO — $123.98M
- First Round $121.68M
(Sep 2007)
- Investors Count 1
All 4 funding rounds of Costain with amounts and investors; the two latest post-money valuations are shown, the rest are part of the premium plan.
| Date | Amount | Transaction Name | Valuation | Lead Investors | Investors |
|---|---|---|---|---|---|
| May 2020 | $123.98M | Post-IPO | – | – | – |
| Jan 2018 | $67,550 | Grant | – | – | |
| Feb 2014 | $41.67M | Post-IPO | – | – | – |
| Sep 2007 | $121.68M | Post-IPO | – | – | – |
2 investors in total: 2 institutional.
Investors in Costain
Costain has secured backing from 2 investors, including institutional and venture fund investors. Prominent investors backing the company include Inflexion and European Union.
| Investor | Description | Founded Year | Domain | Location |
|---|---|---|---|---|
Inflexion is engaged in mid-market private equity investments across Europe. | 1999 | inflexion.com | London, United Kingdom | |
Government entites focused on freedom, democracy, equality and the rule of law, promoting peace and stability | 1958 | europa.eu | Brussels, Belgium |
Investor details for Costain
The complete investor list, round-by-round participation and investor portfolios require an active premium plan.
- Complete investor list
- Round participation
- Investor portfolios
- Co-investor network
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People of Costain
33 people are tracked at Costain (14 in leadership, 4 in board & advisors, 15 in team); the tracked headcount is 2,170.
| Name | Role | Group |
|---|---|---|
Andrew Wyllie | CEO | Leadership |
Alex Vaughan | Chief Executive Officer | Leadership |
Barry Thorley | Head Of Finance | Leadership |
Ethan Chatters | Head Of Strategy, Governance & Architecture | Leadership |
Catherine Warbrick | Chief People And Sustainability Officer | Leadership |
David Taylor | Commercial Director | Leadership |
Helen Willis | Chief Financial Officer | Leadership |
Simon Shepherd | Finance Director, Transportation | Leadership |
Rebecca Minett | HR Business Partner | Leadership |
Jamie Tebbutt | Finance Director - Water Sector | Leadership |
Gillian Liles | Interim Head Of Shared Services | Leadership |
Luke Fisher | Head Of Finance Water Shared Service | Leadership |
Susannah Taylor | Group Director Of Finance | Leadership |
Abida Lalani | Director Of Strategy And Transformation, Executive Board Member | Leadership |
Bishoy Azmy | Non-Independent Non-Executive Director | Board & advisors |
Kate Rock | Non-Executive Chair | Board & advisors |
Fiona Macaulay | Independent Non-Executive Director | Board & advisors |
Tony Quinlan | Senior Independent Director | Board & advisors |
Richard Sutheran | Senior Project Manager | Team |
Neil McGruer | Corporate Treasurer | Team |
13 more people are available in the full profile.
Complete people profiles for Costain
Full employee and board profiles, team structure, tenure and professional contact details require an active premium plan.
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- Team structure
- Board tenure
- Professional contacts
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IPO & Listings of Costain
Costain is a publicly listed company on the LSE with ticker symbol COST in UK, operating in the Industrial services sector. As a publicly traded entity, the company provides investors with opportunities to participate in its growth story through equity ownership. The listing enables access to capital markets, enhances corporate visibility, and provides liquidity for shareholders while maintaining transparency through regulatory compliance and regular financial disclosures.
- IPO date03 Jan 1979
- Listed onLSE: COST
- Listed entityCostain Group PLC
- Exchange sectorIndustrial services
- ISINGB00B64NSP76
- Share price241.50 GBX (+0.42% on the day) · 2026-10-09
- Market capitalisation628,880,336.00 GBX
- Price to earnings17.2
- EPS (diluted, trailing year)0.14 GBX
- Dividend yield2.16%
- Volume (last session)256,067
Financials of Costain
| Year | Revenue | Net income | EBITDA |
|---|---|---|---|
| 2025 | 1.05B GBP | 37.3M GBP | 61.0M GBP |
| 2024 | 1.25B GBP | 30.6M GBP | 48.7M GBP |
| 2023 | 1.33B GBP | 22.1M GBP | 50.9M GBP |
| 2022 | 1.42B GBP | 25.9M GBP | 56.8M GBP |
| 2021 | 1.14B GBP | -5.8M GBP | 4.5M GBP |
Detailed financial statements for Costain
Statement rows, ratios, five-year trends and downloadable financials of the group companies require an active premium plan.
- Statement rows
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- Downloads
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Investments & Acquisitions by Costain
Costain has strategically engaged in corporate development activities, having acquired 4 companies. Notable acquisitions include ClerkMaxwell, EPC Offshore and Rhead Group.
| Company Name | Description | Domain | Location | Founded | Acquired | Amount |
|---|---|---|---|---|---|---|
Traffic-control systems have been developed since 1979 in Bristol. | simulation-systems.co.uk | Bristol, United Kingdom | 1979 | Jul 2016 | $22.37M | |
Limited information available | rheadgroup.com | Coventry, United Kingdom | 1985 | Aug 2015 | $56.28M | |
Oil and gas exploration and production are conducted offshore. | epcoffshore.com | Aberdeen, United Kingdom | 2009 | Aug 2013 | $18.25M | |
Service provider to oil and gas industry | clerkmaxwell.com | Shoreview, United States | 2008 | Apr 2011 | $5.22M |
Complete acquisition details for Costain
Acquired stakes, deal sources and the complete acquisition history require an active premium plan.
- Acquired stakes
- Deal sources
- Complete history
- Exports
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Timeline of Costain
9 dated milestones of Costain across 155 years, from founding to its latest funding, stage changes and deals.
- Founded Costain is founded.
- IPO Lists on the stock exchange (IPO).
- Funding First funding round of $121.7M.
- Acquisition Acquires ClerkMaxwell.
- Acquisition Acquires EPC Offshore.
- Exit Acquired by Inflexion.
- Acquisition Acquires Rhead Group.
- Acquisition Acquires Simulation Systems.
- Funding Latest funding round, Post-IPO, of $124.0M.
Web traffic of Costain
The website of Costain (costain.com) receives about 26K visits a month.
- Monthly visits26K
▲ 5.6% vs previous month
Websites whose visitors overlap most with Costain. Affinity shows how closely the audiences match.
| Website | Domain | Audience affinity | Monthly visits | Global rank | Profile |
|---|---|---|---|---|---|
| laingorourke.com | 100% | 127.4K | #267,214 | View details | |
| balfourbeatty.com | 98% | 94.3K | #468,674 | View details | |
| watermagazine.co.uk | 97% | – | #1,303,436 | View details | |
| hydrogeninsight.com | 97% | – | #237,424 | View details | |
abb.co.uk | abb.co.uk | 91% | – | – | – |
| •••••••••• | ••••••.com | ••% | •.•M | #••••• | – |
| •••••••••• | ••••••.com | ••% | •.•M | #••••• | – |
| •••••••••• | ••••••.com | ••% | •.•M | #••••• | – |
All 23 similar websites and full traffic analytics for Costain
The complete similar-websites list, audience overlap and engagement analytics require an active premium plan.
- 23 similar websites
- Audience overlap
- Engagement analytics
- Traffic by brand
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Latest news on Costain
Complete news archive for Costain
Full article history, source details, and older brand coverage require an active premium plan.
- Full article archive
- Source and publication date
- Older coverage
- Brand-specific news history
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Similar companies to Costain
10 companies that operate in the same segment as Costain (Engineering & R&D Services), ranked by their profile score on The Company Check.
| Company | Description | Founded | Location | Total funding | Revenue | Employees |
|---|---|---|---|---|---|---|
Engineering and construction management services are provided to diverse industries. | 1969 | Windsor, United States | USD 15.5 M | USD 465.13 M | 4,367 | |
Provider of digital engineering and technology services | 1991 | Hyderabad, Telangana, India | – | USD 774.64 M | 12,020 | |
Provider of BPO engineering services for aerospace & defence, automotive, and energy industry | 1997 | Singapore, Singapore | USD 581 M | – | – | |
Supplier of engineering, manufacturing & supply chain, workforce, and government IT solutions to customers | 1958 | Cincinnati, Ohio, United States | – | USD 5.11 M | 287 | |
Helicopters are designed and manufactured for aviation and defense uses. | 1945 | Bloomfield, United States | – | – | – | |
Engineering consulting services in BIM and design fields are provided. | 1993 | Pune, Maharashtra, India | USD 17.6 M | USD 36.53 M | 1,429 | |
Provider of product engineering, process automation, IT advisory, software development, and other services | 1996 | Ahmedabad, Gujarat, India | – | – | – | |
Engineering and scientific consulting services are provided by Exponent. | 1967 | Atlanta, Georgia, United States | – | USD 582.01 M | 1,170 | |
IT, product engineering, and digital transformation services are provided. | 1989 | Bengaluru, Karnataka, India | USD 22 M | USD 118.63 M | 1,760 | |
Design, engineering, architecture, planning, and advisory services are provided. | 1946 | London, England, United Kingdom | – | – | – |
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Frequently Asked Questions about Costain
Costain was founded in 1865 and raised its 1st funding round 142 years after it was founded.
Costain is headquartered in Aberdeen, United Kingdom. It is registered at Aberdeen, Scotland, United Kingdom.
Andrew Wyllie is the current CEO of Costain.
Costain has 2,170 employees.
Annual revenue of Costain is $1.41B as on Dec 31, 2025.
Founded in 1865 and headquartered in Aberdeen City, Scotland, engineering consultancy services are offered by the company across energy, water, and transportation sectors. Technology-based solutions are deployed for on-shore and off-shore oil and gas operations, nuclear facilities, and multi-disciplinary rail projects. Recognition was received in 2016 for the best use of new technology from Highway magazine.
Yes, Costain is publicly traded on LSE under the ticker symbol COST.
Costain has made 4 acquisitions, including ClerkMaxwell, EPC Offshore, and Rhead Group.
Costain has 2 investors. Key investors include Inflexion, and European Union.
Yes. Costain was acquired by Inflexion in August 2015.