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THE HEAT would not be possible without the valued support of our wonderful partners.
Contact Hugo Paquin at to join them. We offer our warmest THE HEAT thanks to:

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Our flagship partner

Harwell has a 75-year history in energy and is home to a long list of science and innovation world-firsts in life and physical sciences, particle physics, nuclear physics, energy, astronomy and space science.

Over the past decade, more than £3bn of public and private investment has been made in the campus, creating a vibrant innovation ecosystem that is nucleated by a critical mass of world-class research, talented people, multidisciplinary facilities, high-quality research and innovation infrastructure, and a nationally significant cohort of enterprising start-up and scale-up businesses.

Read more here about Harwell.

We’re particularly grateful to the Harwell Energy Cluster for bringing so much ambitious science-led talent to THE HEAT.

Read more here about the Harwell Energy Cluster.

Megatonne sponsor

EIT InnoEnergy operates at the centre of the energy transition and is the leading innovation engine in sustainable energy. It has a portfolio of more than 200 companies, which are estimated to generate €110 billion in revenue and save 2.1G tonnes of CO2e accumulatively by 2030.

Recognised as the most active investor in the energy sector in 2022 by Pitchbook, InnoEnergy backs innovations across a range of areas, including energy storage, transport and mobility, renewables, energy efficiency, hard to abate industries, smart grids and sustainable buildings and cities.


Contrarian Ventures is an early stage VC for the climate generation, mobilising resources for climate action in Europe & Israel with our collaborative, hands-on, founders-first approach. Benefitting from unparalleled levels of engagement with the climate tech community, our platform-based model backs the pioneers building the technology that will become the infrastructure of tomorrow. Given that decades of collective actions got us into the climate mess, we leverage Energy Tech Summit, Energy Tech Challengers and Climate50 to make a collaborative effort to mobilise resources and get humanity back on track to decarbonize the economy.

Extantia Capital is a climate-first venture capital firm accelerating the path to a decarbonised world. Extantia unites mission-driven entrepreneurs, scientists, investors, and business leaders to advance the transition. The platform includes Extantia Flagship, a fund backing scalable deep decarbonisation companies, Extantia Allstars, a fund-of-funds investing in climate venture capital funds, and Extantia Ignite, a sustainability hub advancing knowledge and competence in climate innovation and ESG practices.

Kompas is a specialist early-stage venture capital firm with offices in Amsterdam, Berlin, Copenhagen, and Tel Aviv. We back innovative and scalable technology solutions that reduce emissions, increase productivity, and strengthen business resilience in the built environment an the manufacturing industry. Fund I (€135m) targets late Seed and Series A hardware and technology companies in Europe, Israel and the US. We solve key innovation challenges by partnering closely with industry leaders to identify, validate and scale cutting-edge technology solutions. 

Third Derivative (D3) is a vertically integrated engine built to accelerate the rate of climate innovation globally. We uniquely combine a next-generation accelerator, committed venture capital, a curated ecosystem of global corporations, and unparalleled market, regulatory, and policy insights. We are mission driven and market focused. Rising to the climate crisis challenge is a once-in-a-generation, trillion-dollar economic opportunity. That’s why we were founded with purpose: to find, fund, hone, and scale the most-promising technologies to achieve larger, faster reductions in global carbon emissions.

Our ecosystem supporters

At Innovate UK our vision is for the UK to prosper from being the fastest-transitioning economy to net zero. Prospering means creating net-zero products and services, green jobs, sustainable growth and exports to help other countries reach net zero too.  We’re helping build our future economy across the UK — in towns, cities and regions — by inspiring, involving and investing in UK business innovation. As the UK’s Innovation Agency we delivered £720m to over 1,700 businesses in the UK in 2022-23 to scale innovations across net zero.

Oxfordshire Greentech is the business network supporting the growth of the low-carbon sector in Oxfordshire. We bring together businesses and organisations to encourage innovation, collaboration and knowledge transfer, to facilitate the transition towards a sustainable, low carbon future in Oxfordshire and the world.

 Within 4 hours travel from London is the Climate Tech Supercluster, an ecosystem of talent, technology and investment across the UK, France, Belgium and the Netherlands. Our mission is to showcase, develop and scale climate-critical technologies by bringing together innovators, investors and institutions across the region and globally. Join us to accelerate our collective response to shared challenges including in energy, transport, agriculture and construction. Co-founded by Liminal, Cambridge Cleantech and Oxfordshire Greentech.

Oxfordshire LEP brings together business, the universities, colleges, research facilities and local authorities, the LEP’s overarching aim is to be the catalyst for realising Oxfordshire’s economic and commercial potential. The Oxfordshire LEP supports and champions key programmes that are helping to further realise the economic dynamism of Oxfordshire: Encouraging innovation across the county, Connectivity, Skills and training, Inward investment in Oxfordshire, Access to finance and Business support services for Improving infrastructure.

The ZERO Founders Network at the University of Oxford is a platform with a mission to empower the brightest minds in our fight against climate change. Through this network, we aim to catalyse the development and deployment of zero-carbon energy solutions by connecting entrepreneurs, academics, students and funders, passionate about making a real-world impact. The ZERO Founders Network is part of The ZERO Institute for zero-carbon energy research, at Oxford University.

With 10,000 members, ClimateU  is Europe’s largest platform and community of climate professionals. Their goal is to provide anyone in climate with the right resources and connections. No matter if you’re just starting to explore the climate ecosystem, are working in the space, or are building a company, ClimateU is your free starting point for insights, job alerts, connections and much more. The company is best know for their weekly digest: “Last Week in Climate”.

Impact Hustlers  is a global community of 5000+ founders and leaders as well as 250+ investors solving the world’s biggest social & environmental problems. Our mission is to connect impact-driven entrepreneurs to profit-driven business models and investors that will help them succeed. We believe the future belongs to impact-driven companies and change-makers.

ARIA is a new kind of R&D funding agency. We fund scientists and engineers to pursue research at the edge of the possible. ARIA was established by the UK Government in January 2023 with high levels of autonomy – granted via the ARIA Act. From climate change to AI, society faces enormous challenges and opportunities that can be uniquely addressed by science and technology. ARIA was created to activate the UK’s world-class R&D in new ways, so we can meet these head on.

Our service partners

devy digital (which built this website) partners with sustainable, purpose-driven businesses that want seamless online experiences for their audiences. Our thoughtful, insight-led, consultative approach seamlessly takes clients from strategic concept to unique solution.

Felicidad Collective  is a pool of strategic and creative senior professionals with a focus on sustainable narratives, steering clear of clichés and greenwashing practices. We ensure your brand and communications will stand out, just as we’ve achieved with THE HEAT.

At The Gilded Acorn , we aspire to be the world’s most sustainable bookshop. We sell sustainable books, about sustainability, in a sustainable way. Fiercely independent, we are proud to have served our local communities since 1994.

COLD Electric is a full-stack giant battery manufacturer focusing exclusively on the energy storage market. With over 15 years of R&D, we’ve perfected our Lithium Iron Phosphate (LFP) battery systems to be the safest in the world by conquering the flammability concerns that plague traditional lithium-ion batteries. We are the only battery in the world that can subject our live battery cells to open flames without inducing smoke, fire, or thermal runaway.

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