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Solutions to transform our world
RSK is a well-established global leader in the delivery of environmental and engineering solutions. We recognise the urgent need for sustainable change and know that this will be achieved by delivering meaningful action, not just words. We are committed to supporting our clients and societies as they navigate these complex challenges, while making a positive impact.
The business was founded in 1989, originally focused on providing environmental consultancy services to global energy clients. Today, while we remain a leader in environmental consultancy, the business is significantly more diverse. RSK delivers an unrivalled breadth and depth of environmental and engineering services, either as stand-alone projects or as large and integrated multidisciplinary solutions.
The group believes this emphasis on multidisciplinary collaboration is essential for successfully addressing complex global challenges. This is why we have brought together pragmatic advice, forward-thinking engineering, cutting-edge innovation, digital solutions and best-in-class delivery services. To support this, RSK comprises more than 200 companies and employs over 17,000 people, covering an unrivalled breadth and depth of expertise.
The latest from RSK
In-line carbon dioxide pH neutralisation
Could this replace traditional tank-based water treatment? Discover the in-line CO₂ solution cutting footprint by 76%.
20 August 2026
RSK supports Cardiff Rugby tribute to Sir Gareth Edwards at Cardiff Arms Park
RSK and Cardiff Rugby honour legendary player Sir Gareth Edwards with a stand renaming at Cardiff Arms Park during the club’s 150th anniversary season
20 August 2026
Strategic social investments as shared value for communities and companies
Build stronger communities and more resilient projects through strategic social investment that creates lasting value for people and businesses.
19 August 2026
Education is key to unlocking real electrification benefits
Powering the UK’s future: why public education is crucial to grid upgrades, electrification and unlocking the full benefits of clean energy.
18 August 2026
Ground under change: Climate risk across the development life cycle
Hotter summers, wetter winters, greater ground risks. See how new guidance is helping deliver more climate-resilient developments.
17 August 2026
Incinerator Bottom Ash Aggregate – Understanding the potential
Learn how incinerator bottom ash aggregate (IBAA) can support sustainable construction while managing risks, regulations and practical challenges.
14 August 2026
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RSK businesses
Since the beginning RSK has expanded through a combination of organic growth and acquisition. We work hard to ensure that we acquire the right companies to enable us to deliver a full range of environmental and engineering solutions throughout the world.
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