Discover the top companies to work for in 2025 that are making a real difference through their commitment to sustainability. These organisations are proving that business success and positive environmental impact can go hand in hand.

What are the best sustainable companies to work for in 2025?

Vattenfall: Vattenfall is a European energy company with approximately 21,000 employees. For more than 100 years they have electrified industries, supplied energy to people's homes and modernised our way of living through innovation and cooperation.

🍃 Vattenfall are on a mission to help society break free from its dependency on fossil fuels, and we are committed to building a future where everyone can choose fossil-free ways to move, make and live.

Mars UK and Mars France : For more than a century, Mars, Incorporated has been driven by the belief that the world we want tomorrow starts with how we do business today. This idea is at the centre of who they have always been as a global, family-owned business. Today, Mars is transforming, innovating, and evolving in ways that affirm our commitment to making a positive impact on the world around us.

🍃 Mars is committed to sustainability across their entire value chain, focusing on a future with a healthier planet, thriving people and pets and a more inclusive society. You can find out more about their progress in their Sustainable in a Generation Report.

SAP: A market leader in enterprise software, SAP turns businesses into intelligent, sustainable enterprises.

🍃 Sustainability is an integral part of SAP’s purpose to help the world run better and improve people’s lives. Their corporate sustainability approach is to create positive economic, social, and environmental impact while respecting planetary boundaries and human rights – with a special focus on holistic steering and ESG reporting, climate action, circular economy, and social responsibility. As a global technology company supporting the vast majority of the world’s business, SAP needs to lead from the front with our ambitions and actions.

Client Earth: An organisation using the power of the law to protect the earth. Client Earth are the world’s most ambitious environmental organisation. They started with one lawyer and his laptop in 2007. Now they employ over 300 people, with eight offices around the world, creating powerful change for life on Earth.

🍃 Client Earth work tirelessly to ensure people can seek and access the protection they’re entitled to by law. They have pressured the world’s largest multilateral lender to withdraw funding for fossil fuels. They've forced big polluters to come clean about their climate impacts – and to clean up their acts. They protect essential ecosystems on which everyone depends and they have prevented the destruction of Europe’s oldest forest and protected vulnerable wildlife like wolves, bears and lynx.

LettUs Grow: LettUs Grow is a team of growers, engineers, plant scientists and business experts, who all care deeply about food and the environment. Together we design and build aeroponic technology for greenhouse and vertical farms. We believe careful innovation in farming can make the world a better place. You can rear more about their sustainability mission here.

🍃 LettUs Grow are on a mission to reduce the waste and carbon footprint of fresh produce by empowering anyone, anywhere, to grow delicious food near its point of consumption.‏‏‎ ‎

Anglian Water Services:  Anglian Water Services are building a more resilient future. By 2030, they will have prepared two new reservoirs for construction, and their extended strategic pipeline will ensure the region stays resilient to drought. Every step they take is focused on improving the lives of the people they serve.

🍃 Anglian Water Services are committed to reducing CO2 emissions, protecting precious water resources and local habitats in our region. We continue to invest in innovative solutions to ensure a sustainable future for water, nature and the communities we serve.

Vodafone: Vodafone is a leading international Telco serving 300 million customers. Their strong belief is that connectivity is a force for good. If we use it for the things that really matter, it can improve people's lives and the world around us.

"We have established Vodafone’s climate ambitions – to reach net zero by 2040. Now we are focused on the most challenging part: executing the plan to achieve our goals and make the transition to a low-carbon economy."

Margherita Della Valle, Vodafone Group CEO

🍃 You can find out more about Vodafone's commitment to sustainability here.

Airbus: Airbus is a global leader in aeronautics, space and related services. In 2020, it generated revenues of €49.9 billion and employed a workforce of around 150,000.

🍃 Whether it's investing in innovative technologies, improving the environmental impact of our products, or ensuring that the way we operate is socially responsible, at Airbus sustainability is at the very heart of our purpose to pioneer sustainable aerospace for a safe and united world.

Cool Farm: The Cool Farm Alliance is a science-led, not-for-profit membership organisation (community interest company) that owns, manages, and improves the Cool Farm Tool and cultivates the leadership network to advance regenerative agriculture at scale.

🍃 Cool Farm's mission is to to accelerate the transition to regenerative and sustainable agriculture by providing globally aligned, credible and science-based metrics, tools and resources that create impact.

Distinction: A design and technology agency that help established, mid-sized B2B companies transform outdated web and mobile platforms into revenue-generating, customer-friendly experiences.

Livestock Information: A company dedicated to spearheading a transformation in the livestock sector of the agricultural industry by harnessing cutting-edge digital technology to advance livestock traceability throughout the UK.

Veramed: Veramed is a customer-driven Clinical Research Organisation (CRO) that provides high quality biostatistics and programming services for the pharmaceutical and biotech industry.