Top London Greentech Companies (52)

Perk (formerly TravelPerk) is the intelligent platform for travel and spend management. Built to tackle the time-consuming, manual work that gets in the way of real work, our tools automate everything from travel bookings to expenses, invoice processing, and more. By eliminating this shadow work that wastes hours, erodes morale, and saps innovation, we’re on a mission to power real...

Watershed is the enterprise climate platform. Leading companies like Walmart, Stripe, Spotify, Klarna, and Twitter use Watershed's software to measure, reduce, and report their carbon emissions. With its state-of-the-art carbon data engine, in-house climate experts, and marketplace of high-quality decarbonization initiatives, Watershed provides audit-grade emissions data to power business value creation, regulatory compliance, and global climate impact. Watershed’s advisors and...

Green Project is the leading carbon management platform for supply chain decarbonization. We empower companies, and their suppliers to move beyond reporting and take meaningful, measurable climate action. Trusted by 700+ organizations, including Microsoft and S&P, Green Project delivers financial-grade carbon accounting and deep Scope 3 engagement tools tailored for procurement and sustainability leaders. We enable suppliers to: calculate product-level carbon footprints...

CDP is a global non-profit that runs the world's only independent environmental disclosure system for companies, capital markets, cities, states and regions to manage their environmental impacts.

Zero100 is a leading intelligence company that helps senior business and operations executives make critical supply chain investment decisions. Zero100’s approach combines unique IP-led research and data, intimate executive-level events, personalized guidance, and access to an extensive community of influential thinkers and voices from within, and beyond, supply chain. 

Shellworks is a design-led techbio company that creates uncompromising, compostable packaging solutions made from naturally-derived materials, offering a sustainable alternative to conventional plastics.

Voluntary carbon offsetting is a critical part of a net zero plan, but getting offsetting wrong is a reputational liability. We help companies navigate the complexity of the voluntary carbon markets and build a credible and rigorous path to net zero. Together, we can scale carbon removal solutions to align corporate action to the 1.5°C Paris goal.

Oxwash provides sustainable, on-demand laundry and dry cleaning services, focusing on net-zero carbon emissions and eco-friendly processes using advanced technology.

Carbon Re is an industrial AI company that develops a cloud-based platform to achieve operational efficiencies and reduce carbon emissions in manufacturing. Their AI technology focuses on decarbonisation solutions for sectors like cement, steel, and glass, aiming for zero-carbon materials and significant fuel efficiencies.

The World Resources Institute is a global research organization that works to improve people's lives, protect nature, and stabilize the climate by conducting research and informing policy.

Carbon Clean is an established global leader in industrial carbon capture solutions helping essential, but hard-to-abate, industries decarbonise. Our innovative solutions significantly reduce the costs and environmental impacts of carbon capture compared to conventional technologies. Technology to achieve 'net zero'.

Safi is the new era of TrueCircle. Since we launched in 2021 under the name TrueCircle, we have been on a mission to tackle recycling inefficiency by improving the way we buy and sell recyclables. Safi gives customers access to the best prices and instant expansion into global markets. Through Safi AI, sellers can prove their material quality and drive...

At the heart of Back Market is a simple idea: make devices a bit cleaner by making them last a bit longer. We think it's time to offer a strong and mainstream alternative to new products by making existing used devices more appealing to potential customers and making them accessible as a strong alternate option.

Isometric is a carbon removal standard and registry.

CECO Environmental is a global leader in air quality and fluid handling serving the energy, industrial and other niche markets. Providing innovative technology and application expertise, CECO helps companies grow their business with safe, clean and more efficient solutions that help protect our shared environment. In regions around the world, CECO works to improve air quality, optimize the energy value...

Kita | We Insure Carbon. Kita is the carbon insurance specialist. Our mission is to enable high-quality carbon projects to scale by offering a portfolio of insurance products that reduce carbon risk. Reduced risk in carbon credit transactions leads to greater flows of upfront capital and accelerates the pace of positive climate impact. Kita is a coverholder at Lloyd’s of London...

Zipcar is the world’s leading car-sharing network, found in urban areas and university campuses in more than 500 cities and towns. Our team is smart, creative and fun, and we’re driven by a mission – to enable simple and responsible urban living. Being a Zipcar member gives you easy access to a car nearby without all the cost and hassle...

We are envisioning a heaven on Earth, forging an oasis like no other. There is no one on earth like us.

Your Waste. Our Problem. We offer on demand rubbish collection allowing individuals and businesses to dispose of their waste easily and ethically with 96% of all the waste we collect being recycled. Powered by our propriety technology and accessible through web or app we have been labelled the 'uber for rubbish' and have secured investment from some of Europe’s biggest VC’s. By...

RheEnergise is bringing fresh innovation to the world’s dominant form of storage: pumped hydro storage. We call our solution High-Density Hydro®. HD Hydro® uses our proprietary HD Fluid R-19 which has 2.5x the density of water. It is environmentally benign, non-toxic, non-corrosive, and non-reactive. R-19 gives RheEnergise projects 2.5x the power and 2.5x the energy when compared to water. Unlike...