Sustainability & ESG - www.rsewater.com

Environmental, Social, and Governance

RSE is a leading ESG-focused organisation that develops technology and solutions to overcome the environmental, technical, and commercial challenges of sustainable water purification technology solutions.

RSE is committed to driving down emissions in both our operations and our products, as well as protecting the environments we operate within, through minimising pollution and promoting biodiversity.

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RSE is committed to creating an empowering, inspiring, and supportive workplace, placing people at the heart of our sustainability strategy.

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RSE is committed to delivering transparent and accountable reporting of our business operations, guided by our strong principles and values to ensure we uphold the highest ethical standards.

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As we reflect on the past year, RSE’s commitment to environmental, social and governance excellence is evident through our success. It has been an extraordinary year of growth which is testament to our collaborative and innovative approach, as well as our dedicated and ambitious employees.

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RSE honoured with the King’s Award for Enterprise in Innovation

Fastest growing large firm in Scotland

RSE Apprenticeship Programme Shines at Highlands & Islands Apprenticeship Awards 2025

Large Employer
Apprentice Ambassador

RSE Wins 2025’s IChemE Global Award for Water for the m-MBBR® Modular Treatment System

The water sector will face significant climate-induced challenges such as water scarcity and flooding. This heightens RSE’s responsibility to deliver innovative solutions to mitigate against climate induced risks. Our innovative technologies provide industry leading water treatment solutions, including the UK’s largest ceramic membrane water treatment plant.

RSE employs over 2000 people, providing local employment within a rapidly growing business. With locations across the UK, we contribute to the broader UK economy as well as supporting smaller local economies such as in the Scottish Highlands.

orange tile with 3 white cubes stacked and 9 industry, innovation and infrastructure written on it

RSE provides offsite modular build solutions using a low-carbon approach compared to traditional construction methods and our unique offering to the market focuses on innovation, efficiency, and excellence.

an earthy coloured tile with white text and a white infinity symbol.

The circular economy is championed through our flexible, scalable and modular design. The standardisation of products using modular offsite construction allows them to be re-used and refurbished at the end of their life. The choice of materials make our modular solutions fully recyclable, avoiding waste going to landfill.

a green tile with a white eye. within the eye is a drawing of the earth. The white text says 13 climate action

RSE is committed to achieving our operational Net Zero target by 2030. To achieve this, RSE has invested heavily in renewable alternatives such as solar panels, renewable diesel, EV charge points, biomass boiler, and green electricity tariffs.

*Scope 1 and 2 (location based emissions)

*Scope 1 and 2 (market based emissions)

(REGO electricity tariffs)

RSE is proud to be part of the global movement towards Net Zero. Our ambitious targets – achieving Operational Net Zero by 2030 and full Net Zero by 2035 – demonstrate our commitment to climate action.

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RSE promote the circular economy through the reuse of products, repair and refurbishment of client assets, and waste reduction strategies.

Since 1982, we have been actively supporting our local communities directly through financial contributions through our supply chain partnerships.

From local charities, sports causes, community allotments, foodbanks and blood donations, RSE engages with a diverse range of community groups.

RSE’s charity partner, Heather’s Heroes, supports a network of UK charities that offer support, care and resources to those who need it most.

RSE employees support Heather’s Heroes’ mission and primarily champion the cause through the company’s charity fundraising events and challenges.

With the generous contributions of RSE and its employees, Heather’s Heroes can match fund fundraising efforts impacting local communities, to maximise the impact of donations to invaluable charity causes.

Visit Heather’s Heroes

RSE is able to identify, develop and retain talented staff who are at the heart of our business.

Our highly successful Graduate and Apprenticeship programme supports the development of those early in their career, providing them with the necessary skills and experience to accelerate their personal and professional development.

Graduate Programme

Apprenticeship Programme

At RSE, employee health and wellbeing is important to us. Our mission is to erase the stigma associated with discussing mental health and to let everyone know that there is always hope, safety, and support available.

RSE has its own internal Mental Health Champions who are available for all staff to contact for support.

We are an official company supporter of the Lighthouse Construction Charity, which provides confidential support to our employees and their families.

RSE also partners with Mikeysline, a Highland-based charity which provides mental health support services 24/7 and visits our facilities to deliver presentations and open discussions to staff.

Visit Mikeysline