Best Sustainability Tech Companies in Oxford, United Kingdom
The 37 best Sustainability Tech companies in Oxford, United Kingdom in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: Oxford Photovoltaics.
Our analysis of 59 Sustainability Tech companies
$4.5b in tracked funding; 81% of the stack-profiled cohort runs cloud-native; funding activity peaked in 2025.
Ranked: Best Sustainability Tech companies in Oxford
| # | Company | Disclosed funding | Last round | Employees | Founder | Tech stack | Web popularity | Patents & IP focus | Recent signals |
|---|---|---|---|---|---|---|---|---|---|
| 1 | AeroSyn Developer of an AI platform for wind turbine health management | — | — | — | Kunal Panchal Founder & CEO | — | — | — | — |
| 2 | Aether Provider of environmental data analysis and interpretation for greenhouse gas and air emissions | — | — | — | Justin Goodwin Owner | WordPressPleskMySQL+12 | Top 50M | — | — |
| 3 | Altalto Waste to biofuel conversion solution provider | — | — | — | Henrik Wareborn CEO | — | — | — | — |
| 4 | Belfrytherapeutics.com Developer of therapeutics to treat multi-drug resistant bacterial infections | — | — | 5 | — | — | — | — | — |
| 5 | ClimateCare Offering environment campaign services | — | — | 31 | — | — | — | — | — |
| 6 | Co-Star Clean Tech Hydrogen fuel kits for IC engines | — | — | — | Josh Costar Founder & CEO | — | — | — | — |
| 7 | Energence Offers monitoring services for solar PV systems | — | — | 1 | Adrian Hewitt Founder & Director | — | — | — | — |
| 8 | Green Energy Control Distributed off-grid solar project development and management solutions | — | — | — | Michele Manca Founder | — | — | — | — |
Top 12 Sustainability Tech companies in Oxford
#1
Series B · Oxford, England · founded 2021 · 3 employees$22.7Mraised▾
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- Nov 2025Grant (prize money)$2.3M
- Sep 2025Series B$28M
- Nov 2023Grant (prize money)$3.5M
- Jun 2023Series A$22.7M
#2
Series A · Oxford, England · founded 2023$19.2Mraised▾
Developer of exploration models for identifying natural hydrogen energy resources. This business utilizes scientific research and geochemical analysis to locate subsurface hydrogen accumulations. Technical operations focus on the application of geophysical data and spectrometry to detect trace hydrogen emissions within the crust. These methods support the identification of potential energy sources for industrial feedstock and fuel applications.
- Jul 2025Series A$6.7M
- Dec 2024Series A$8.7M
- Jul 2023Series A$3.9M
#3
Series C · Oxford, England · founded 2014 · 32 employees$22.4Mraised▾
Provider of app-based residential heat storage solution. The company offers hot water tanks that deliver a greater amount of hot water from the same volume as a conventional cylinder which saves bills for the householder since heat losses are reduced. Its app is available for Android and iOS devices.
- Mar 2025Series C$15.5M
- Mar 2023Series B$11.2M
- Jan 2020Series A$4.7M
- Nov 2019Series A$5.2M
#4
Seed · Oxford, England · founded 2021 · 3 employees$6.7Mraised▾
Online platform offering carbon capture solution. It captures carbon through different direct air capture, forest, construction, soil, biomass, and ocean. It builds standard portfolios to draw down CO2 from the atmosphere.
- Sep 2025Seed—
- May 2023Seed$6.7M
#5
Series A · Oxford, England · founded 2017 · 10 employees$39Mraised▾
SpyBiotech, a spinoff from Oxford University, is developing vaccines for bacterial infections. The company is using its proprietary protein superglue technology which consists of SpyTag (peptide) and SpyCatcher (protein companion) to produce virus-like particles (VLP) vaccines.
- Mar 2023Grant (prize money)$4.1M
- Feb 2021Series A$32.5M
- Mar 2017Series A$6.1M
#6
Series D · Oxford, England · founded 2010 · 115 employees$202.2Mraised▾
Manufacturer of tandem solar cells combining perovskite and silicon layers. These components utilize thin film coatings applied to conventional silicon bases to capture broader light spectrums. The technology increases energy conversion efficiency compared to standard single-junction solar products. These cells integrate into existing module production processes for use in utility, building, and transportation applications.
- Jul 2019Series D$82M
- Mar 2019Series D$41.1M
- Apr 2018Series D$11.2M
- Apr 2018Grant (prize money)$641.2K
#7
Series A · Oxford, England · founded 2020 · 1 employees$17.2Mraised▾
Developer of technology for capturing and storing atmospheric carbon dioxide. The company builds machines to capture carbon dioxide. It focuses on creating technology to profitably capture carbon dioxide.
- Nov 2021Series A$10.8M
- Aug 2021Seed$6.4M
- 2021Seed—
#8
Seed · Oxford, England · founded 2021 · 4 employees$1.8Mraised▾
Developer of synthetic biology platform for molecule production using carbon dioxide. The platform utilizes genetically engineered cells to synthesize molecules from absorbed carbon dioxide. It offers methods for cloning, CRISPR, and a library of genetic parts. The platform is designed for manufacturing efficiency by eliminating expensive ingredients.
- Nov 2023Seed$309.3K
- Jan 2023Seed$1.5M
#9
Seed · Oxford, England · founded 2021$500Kraised▾
Developer of next generation antibiotics using artificial intelligence models to outpace bacterial resistance. The platform combines computational power with biological expertise to design novel protein structures that can evade bacterial resistance and precisely target pathogenic bacteria. It uses artificial intelligence combined with co evolutionary protein protein interaction datasets to forecast bacterial mutations and create antibiotics that precisely target pathogenic bacteria without harming beneficial microbes or human cells.
- 2024Seed$500K
#10
Public · Oxford, England · founded 2018 · 11 employees$7Mraised▾
Developer of influenza vaccine for protection against all influenza strains. The vaccines target parts of the virus that are easy to induce a protective immune response. The pipeline candidates include BWV-101 for flu BWV-102 for H1 BWV-301for norovirus. and others.
- Jul 2019Seed$7M
#11
Seed · Oxford, England · founded 2018 · 10 employees$1.2Mraised▾
SaaS and AI-driven solutions for HVAC monitoring and management. The solution aggregates time and location-specific temperature and occupancy data. Data is used for AI-powered optimization and creating the digital fingerprint of the rooms.
- Nov 2022Seed$1.2M
- Oct 2021Seed—
- Jan 2021Seed—
#12
Funding Raised · Oxford, England · founded 1992 · 14 employees$2.9Mraised▾
Microcredit savings and insurance for poor women
- Aug 2009Grant (prize money)$100K
- Jul 2007Grant (prize money)$2.8M
Funding & investor landscape
Notable founders
Market landscape — 10 sub-themes by coverage
Share of Sustainability Tech coverage by sub-theme.
Regulatory-risk over time rising
Funding & growth over time
funding rising · growth rising
How research on Climate Adaptation in Oxford is moving
A read on the academic research around Climate Adaptation in Oxford — which themes are gaining ground, the institutions and researchers driving them, and how the tone is shifting. Based on 102 papers.
- University of Oxford96
- Mahidol Oxford Tropical Medicine Research Unit2
- Oxford University Press2
- Science Oxford1
- Oxford Policy Management1
- Climate change1→7
- Climate change7
- Flood myth5
- Climate risk4
- Financial risk2
- Risk management2
- Climate change8→28
- Climate risk1→10
- Resilience (materials science)1→8
- Risk management1→6
- Extreme weather2→5
Common questions
Riya reads income statements for fun. She covers the real money in a sector — revenue, growth, who actually earns — and never met a vague claim she didn't want a number for.