The capital backing climate companies in London.
From Systemiq Capital and Sustainable Ventures to the funds investing across the region, here is a starter map of the investors active in the local climate ecosystem.
Systemiq Capital
Systemiq Capital is a London climate-tech VC, spun out of system-change firm SYSTEMIQ, investing in B2B companies from late seed to Series B across electrification, nature, applied AI, sustainable food and materials, clean transport, and climate intelligence. Beyond capital it plugs founders into SYSTEMIQ's network of business leaders, policymakers, and climate experts. It is genuinely London-headquartered.
Sustainable Ventures (SV Fund)
SV Fund is the investment arm of Sustainable Ventures, providing SEIS and EIS-qualifying early-stage climate capital paired with an intensive support program to the next round. Beyond capital, founders tap the full County Hall ecosystem of workspace, labs, grant-writing, R&D tax credits, corporate introductions, and community. It is genuinely London-headquartered and one of the most active UK climate investors by deal count.
2150
2150 is a London-headquartered climate VC investing in the urban stack, the technologies reshaping how cities are designed, built, powered, and maintained, from energy and cooling to low-carbon cement, industrial heat, and mobility. It invests mainly at Series A and B, leads rounds, and reserves substantial follow-on, bringing deep urban and industrial expertise and a community of advisors. It has a genuine London office.
Environmental Technologies Fund Partners
ETF Partners is a London-founded sustainability VC, often called Europe's original, investing in digitally led technology companies delivering environmental impact, typically from Series A with capital for multiple rounds. Beyond capital it offers hands-on scale-up support and sustainability expertise. It is genuinely London-headquartered and invests across the UK and Europe.
Clean Growth Fund
Clean Growth Fund is a London-based, UK-only climate VC investing at seed and Series A in companies with clear emissions-reduction potential across power, transport, industrial decarbonization, buildings, agrifood, and circular economy. Beyond capital it offers founder-friendly support and a close partnership with an incubator for commercialization and business development. It is genuinely London-headquartered with a UK-only mandate.
Octopus Ventures
Octopus Ventures is one of Europe's largest and most active VCs, with a dedicated in-house climate team covering energy decarbonization, circular economy, green finance, and carbon removal. It invests from pre-seed to Series A and follows on, backed by Octopus Group's permanent capital, and adds in-house talent specialists and US-expansion support. It is genuinely London-headquartered.
Green Angel Ventures
Green Angel Ventures is the UK's leading climate-specialist angel syndicate, plus an EIS-eligible climate fund extending into Series A. It invests at early stage in EIS-eligible UK companies with a working product, adding member due-diligence expertise, board involvement, and follow-on through co-investment. It is UK-based and active nationwide including London.
World Fund
World Fund is a leading European climate-tech VC investing from seed to Series B in startups that can each save large volumes of CO2e at scale, assessed by an in-house science team, across energy, food and agriculture, manufacturing, buildings, and transport. Beyond capital it offers rigorous scientific validation and lead-investor support. It is headquartered in Berlin with no dedicated London office, though it invests in UK companies.
Kompas VC
Kompas VC is an early-stage industrial-tech VC investing at seed and Series A in decarbonization, productivity, and resilience across manufacturing and the built environment, including proptech, construction, materials, and supply chain. Beyond capital it offers industrial sector expertise and follow-on reserves. It runs from Amsterdam, Berlin, Copenhagen, and Tel Aviv with no London office, though it invests in UK companies.
Contrarian Ventures
Contrarian Ventures is a pan-European seed-stage climate VC investing in decarbonization across energy, transport, buildings, and heavy industry, often leading with a software-first lean. Beyond capital it runs a strong community platform, including an energy-tech summit and a scaling framework, plus regulatory and commercial support. It is headquartered in Vilnius with a London office and heavy UK activity.
Norrsken VC
Norrsken VC is a Stockholm impact VC investing pre-seed to Series B across climate tech, energy, and AI, structured as a dark-green fund, with the Norrsken foundation ecosystem behind it. It has no dedicated London office, though it invests across Europe including the UK. Beyond capital it offers a large impact network.
Speedinvest
Speedinvest is a pan-European early-stage VC with a dedicated climate and industrial-tech team covering energy, infrastructure, construction, manufacturing, mobility, and decarbonization, plus a growth follow-on vehicle. Beyond capital it offers an in-house operational team for growth, hiring, and US expansion, plus a large founder network. It has a genuine London office alongside other European hubs.
Ada Ventures
Ada Ventures is a London pre-seed and seed VC with an inclusive-investing thesis, one theme of which is climate equity, a fair net-zero transition. Beyond capital it runs a scouts network sourcing overlooked and underrepresented founders, plus venture partners. It is genuinely London-based, with a Bristol office.
MMC Ventures
MMC Ventures is a London seed and Series A VC, research-led, but not a climate specialist, with a core in enterprise AI, fintech, data-driven health, and data infrastructure, and climate a peripheral theme. Beyond capital it offers a platform of sales introductions, coaching, and talent, plus co-investment vehicles. It is genuinely London-headquartered.
Molten Ventures
Molten Ventures is a London-headquartered, listed growth-stage VC with a permanent-capital model, investing Series A and B through pre-IPO across generalist tech including a climate theme, and also backing seed funds as an LP. It is genuinely London-headquartered, offering a large growth-stage platform beyond capital.
Foresight Group
Foresight Group is a London-headquartered, listed infrastructure and private-equity manager, predominantly an asset and project investor in renewables and real assets rather than an early-stage climate VC. Its founder-facing route is Foresight Ventures, which backs UK SMEs including university spinouts with tax-efficient VCT and EIS capital and a support program. Founders should approach that ventures arm specifically.
Barclays Climate Ventures & Eagle Labs
This entry covers two Barclays vehicles. Sustainable Impact Capital invests the bank's balance-sheet equity into early-stage environmentally focused companies, while Eagle Labs is a UK-wide network of incubator and coworking spaces and programs, including a climate-tech center of excellence, offering workspace, mentoring, an academy, and corporate connections, and delivering climate accelerators through partners. It has a strong UK-wide presence.
Zero Carbon Capital
Zero Carbon Capital is a UK deep-science climate VC investing at pre-seed and seed in hard-science solutions to emissions across materials, industrial decarbonization, energy, and food and agriculture. It is known for backing hardware and deep-tech founders very early and providing scientific diligence and support. It is genuinely UK-based.
Counteract
Counteract is a London VC billed as the first dedicated carbon-removal fund, investing at pre-seed and seed across all removal pathways, from direct air capture and biochar to mineralization, enhanced weathering, and carbon-removing concrete. Beyond capital it offers deep removal specialty, with a threshold that each company plausibly enables large-scale removal. It is genuinely London-based.
Elbow Beach Capital
Elbow Beach Capital is a London-headquartered, explicitly UK-focused VC investing pre-seed to Series A in decarbonization and sustainable-energy hardware, from automation and AI to carbon capture, electrification, and low-carbon materials, often backing university spinouts and Innovate UK grant recipients. It is genuinely London-headquartered, helping founders bridge the pre-seed-to-Series-A gap.
AENU
AENU is a Berlin evergreen impact VC investing at seed and Series A in climate tech and the energy transition, including the carbon economy, industrial decarbonization, buildings, and agrifood, typically co-leading with a board seat. It has no London office, though it invests across Europe including UK companies. Beyond capital it offers long-horizon evergreen support.
Planet A Ventures
Planet A Ventures is a German science-first climate VC investing pre-seed to Series A in European green tech, using an in-house science team that runs life-cycle assessments with veto power, across agrifood, construction, energy, manufacturing, transport, and water and waste. Its presence is primarily German, with UK portfolio companies but no dedicated London office. Beyond capital it offers rigorous impact validation.
Climentum Capital
Climentum Capital is a Nordic and DACH climate VC investing at seed and Series A in climate hard tech, from energy security and industrial efficiency to supply-chain resilience, as a dark-green fund with carry tied to verified CO2 savings. Its core geography is the Nordics and DACH rather than the UK. Beyond capital it offers deep-tech and impact expertise.
Extantia Capital
Extantia Capital is a Berlin deep-decarbonization hardtech VC investing seed to Series A with a gigaton-scale thesis across energy, carbon removal, transport, industrial processes, and green hydrogen, and it also runs a fund-of-funds. Its base is primarily German, with some UK team footprint but no London HQ. Beyond capital it offers deep-tech decarbonization expertise.
Pale Blue Dot
Pale Blue Dot is a Malmo-based climate VC investing pre-seed and seed across climate-only, sector-agnostic areas including energy, food and agriculture, industry, and transport, in software and some hardware. It has no London office, though it invests across Europe and the US including the UK. Beyond capital it offers focused early-stage climate support.
Regenerate Ventures
Regenerate Ventures is a UK-focused agrifoodtech VC, described as the UK's first dedicated upstream, inside-the-farmgate agtech fund, investing pre-seed to Series A through an EIS-eligible evergreen fund and partnering with Innovate UK. Focus spans farm-level biotech and genetics, robotics, AI, data and satellite, sensors, biologicals, and measurement. It is genuinely UK-based, agri-focused rather than London-specific.
Low Carbon Innovation Fund
The Low Carbon Innovation Fund is a regional co-investment fund for the East of England, managed on behalf of the University of East Anglia's low-carbon group, investing in companies demonstrating measurable emissions reductions. Its earlier funds are limited to the East of England, so London founders are largely out of scope, while a newer fund targets UK later-stage climate tech more broadly. London founders should use London-eligible funds unless targeting the East of England.
Kiko Ventures
Kiko Ventures is a London-based, IP Group-owned evergreen cleantech VC with no fixed fund cycle or external LPs, investing at seed and Series A and B in science-based climate tech from renewable energy and carbon capture to hydrogen, fusion, and mobility, with strong university-spinout ties. It can invest very early and follow on with patient capital. It is genuinely London-based.