Best Sustainability Tech Companies in Bristol, United Kingdom
The 41 best Sustainability Tech companies in Bristol, United Kingdom in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: OVO Energy.
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 Bristol
| # | Company | Disclosed funding | Last round | Employees | Founder | Stage | Web popularity | Patents & IP focus | Recent signals |
|---|---|---|---|---|---|---|---|---|---|
| 1 | OVO Energy Provider of electricity and gas supply services for residential properties | $258M | 37 mo ago | 1,115 | Stephen Fitzpatrick Founder | Acquired | Top 100k | — | — |
| 2 | Beam Technology company that provides sustainable infrastructure solutions 74Growth top 21%Fin. health top 28%Funding top 31%Tech top 34% All 8 signals ▾Growthtop 21% Fin. healthtop 28% Fundingtop 31% Techtop 34% Talenttop 38% Marketbottom 46% Globalbottom 39% Moatbottom 38% Growth: Revenue +43% YoY · Fresh capital in last 24 mo Fin. health: Revenue ~$24.4M · Revenue +43% YoY rank vs industry peers · Fliar Intelligence Index 74/100 | $39M | 22 mo ago | — | Joe Tidball Co-Founder | Acquired | Top 10M | — | — |
| 3 | Rovco Provider of AI-driven ROVs and services for inspection of ships 74Innovation top 26%Patents top 28%AI top 28%Product top 30% All 12 signals ▾Innovationtop 26% Patentstop 28% AItop 28% Producttop 30% Moattop 32% Growthtop 33% Fundingtop 35% Newstop 40% Fin. healthtop 41% Marketbottom 49% Talentbottom 49% Globalbottom 42% Innovation: 47 patents (top 32% of patent-holders) · 30 filings since 2022 vs 17 in 2017-21 Patents: 47 patents matched (strict assignee match) · 30 filings since 2022 vs 17 in 2017-21 rank vs industry peers · Fliar Intelligence Index 74/100 | $38M | 49 mo ago | 50 | Brian Allen CEO | Deadpooled | — | 47 patents Underwater autonomous imaging and 3D mapping systems for subsea exploration. | — |
| 4 | Origen Limestone based direct air capture technology 40Growth top 35%Funding top 36%Talent top 38%Global bottom 48% All 6 signals ▾Growthtop 35% Fundingtop 36% Talenttop 38% Globalbottom 48% Techbottom 42% Marketbottom 25% Growth: Fresh capital in last 24 mo Funding: Raised $30.8M across 9 rounds · 9 rounds over 8 yrs (1.1/yr) rank vs industry peers · Fliar Intelligence Index 40/100 | $31M | 19 mo ago | — | Tim Kruger Founder | Series A | Top 50M | — | — |
| 5 | Wase Developer of modular electro-methanogenic biogas technology | $17M | 29 mo ago | 7 | William Gambier Co-Founder & Head of Automation | Series A | Top 10M | 6 patents Advanced wastewater treatment technologies for contaminant removal | 1 expansion |
| 6 | Marine Current Turbines Tidal power generator | $15M | 116 mo ago | 30 | — | Deadpooled | — | 137 patents Offshore marine renewable energy turbines and their installation, foundation, and control systems | — |
| 7 | Perceptual Robotics Provider of autonomous drone inspections and AI-driven data processing for turbines | $4M | 35 mo ago | 10 10 → 20 (+100%) | Konstantinos Karachalios Co-Founder & CEO | Seed | Top 5M | 17 patents Autonomous navigation and pose‑optimization for mobile robots and vehicles | — |
| 8 | Pertinax Pharma Deveeloper of antimicrobial technologies for various applications | $3M | 88 mo ago | 1 | Michele Barbour Chief Executive Officer | Seed | — | — | — |
| 9 | Trameto IoT-enabled applications for power management | $3M | 51 mo ago | 8 | Huw Davies Co-Founder & CEO | Seed | — | 11 patents Energy-harvesting power management circuits for low‑power electronic devices | — |
| 10 | Fluoretiq Developer of a diagnostic platform for bacterial identification | $2M | 54 mo ago | 9 | — | Seed | — | 4 patents Fluorescent probes and spectrofluorometric systems for cellular and bacterial detection | 1 launch |
| 11 | TCarta Provider of geospatial products and Earth observation analytics services | $2M | 16 mo ago | 24 | David Critchley CEO | Funding Raised | Top 50M | — | — |
| 12 | Halo Therapeutics Developer of therapeutics for the treatment of Covid-19 | $2M | 39 mo ago | 1 | Daniel Fitzgerald Co-Founder & CEO | Seed | — | — | — |
| 13 | Sennen Provider of a renewable energy asset management platform | $2M | 48 mo ago | 16 | — | Acquired | — | — | — |
| 14 | Spherics Cloud based data preparation software solution provider | $1M | 46 mo ago | 15 | Ciaran Wood Co-Founder | Acquired | — | — | — |
| 15 | Atmo Technology Provider of real-time data platform for asset and environmental monitoring | $788K | 38 mo ago | 10 10 → 8 (-20%) | Guy Barkley Founder & CEO | Seed | — | — | — |
| 16 | ModCell Developer of prefabricated straw bale panel construction | $424K | 140 mo ago | — | Craig White CEO | Funding Raised | Top 50M | 4 patents Prefabricated insulated building panels for modular construction | — |
| 17 | GenomeKey Developer of diagnostic solutions for infectious diseases by using DNA sequencing and machine learning | $259K | 25 mo ago | 10 | Michael Roberts Co-Founder & CEO | Seed | Top 50M | — | — |
Top 12 Sustainability Tech companies in Bristol
#1
Series A · Bristol, England · founded 2013$30.8Mraised▾
Limestone based direct air capture technology. It develops a scalable, limestone-based direct air capture technology to permanently reduce the level of CO2 in the air.
- Jan 2025Series A$13M
- Jul 2024Series A$64.3K
- Apr 2022Series A$8.1M
- Nov 2021Series A$349.9K
#2
Acquired · Bristol, England · founded 2016$39Mraised▾
Technology company that provides sustainable infrastructure solutions. It provides innovative and sustainable infrastructure solutions for the electrification of transportation and energy security. The company offers a range of products, including the solar-powered ebike charging system and the curbside EV charging product line, which combines solar, wind, and utility-generated electricity for charging.
- Oct 2024Series A—
- Jan 2024Series A$380.2K
- Jul 2022Series A$5.3M
- Mar 2022Series A$23.4M
#3
Acquired · Bristol, England · founded 2009 · 1115 employees$257.7Mraised▾
Provider of electricity and gas supply services for residential properties. This business supplies energy to households and offers installation services for heating systems, boilers, and electric vehicle charging equipment. It provides maintenance coverage for plumbing, drainage, and kitchen appliances. Additionally, the business facilitates the installation of solar panels and battery storage systems to support energy generation and management. Customers can access tools for monitoring energy usage and managing accounts through a digital interface.
- Jul 2023Series D$257.9M
- Jun 2020Grant (prize money)$5.2M
- Feb 2019Series D$257.7M
- Dec 2018Grant (prize money)$2M
#4
Funding Raised · Bristol, England · founded 2008 · 24 employees$2.1Mraised▾
Provider of geospatial products and Earth observation analytics services. Its product portfolio has multiple monitoring and analytics solutions including a global GIS bathymetry package, It is a marine base map, vector shoreline, satellite-derived bathymetry solution, global GIS bathymetry solution, topographic bathymetry solution, satellite-based water quality monitoring, vegetation monitoring, and air quality modeling.
- Apr 2025Grant (prize money)$175K
- Feb 2025Grant (prize money)$175K
- Aug 2024Grant (prize money)$175K
- May 2022Grant (prize money)$100K
#5
Series A · Bristol, England · founded 2017 · 7 employees$16.6Mraised▾
Developer of modular electro-methanogenic biogas technology. This technology enhances biogas production from waste streams, offering a more efficient and compact solution compared to traditional anaerobic digestion. The system is designed for seamless integration into existing operations and includes ongoing maintenance and optimization services. It is applicable across various sectors, including food and beverage processing, agriculture, and brewing. The technology aims to improve methane yields, reduce waste treatment costs, and increase energy production from waste byproducts.
- Mar 2024Conventional Debt$3M
- Mar 2024Series A$10.7M
- Nov 2023Seed$3.5M
- Mar 2022Seed$1.3M
#6
Deadpooled · Bristol, England · founded 2016 · 50 employees$38.5Mraised▾
Provider of AI-driven ROVs and services for inspection of ships. Its product and service portfolio includes powerful electric work-class vehicles with e vectored thrust, compact inspection class ROV, a compact survey ROV, a workhorse of the Rovco fleet, and a compact ROV that comes with a manipulator, rear-facing camera, smart tether, sonar, blue view, HD or 4K camera. It also leverages AI technology for surveys and inspection.
- Jul 2022Series B$5.8M
- Mar 2022Series B$20M
- Jan 2022Series A$2.7M
- Dec 2019Series A$6.5M
#7
Seed · Bristol, England · founded 2016 · 10 employees$3.6Mraised▾
Provider of autonomous drone inspections and AI-driven data processing for turbines. The company delivers actionable insights through autonomous drone technology and experienced UAV pilots. It offers data ingestion from various inspection methods for a complete overview. The company’s AI-driven data processing enables smarter maintenance decisions with damage detection and detailed reports.
- Sep 2023Seed—
- Apr 2023Seed—
- Jan 2023Seed—
- Dec 2022Seed—
#8
Seed · Bristol, England · founded 2011 · 10 employees$259.3Kraised▾
Developer of diagnostic solutions for infectious diseases by using DNA sequencing and machine learning. The company has developed solutions that help to diagnoses bacterial presence, species, and antimicrobial resistance in humans. It uses artificial intelligence for the diagnosis of sepsis & other infectious diseases.
- Aug 2024Grant (prize money)$11.4M
- May 2022Grant (prize money)$1.2M
- May 2021Grant (prize money)—
- Jan 2021Seed$259.3K
#9
Deadpooled · Bristol, England · founded 1999 · 30 employees$15.2Mraised▾
Marine Current Turbines develop generators for harnessing tidal power to generate electricity. Their Seagen range of tidal generators consists of twin power trains mounted on a crossbeam. The cross beam can be raised above the water for routine maintenance by winching it up the monopole support structure. The turbines have a patented feature whereby the rotor blades can be pitched through 180 degrees, allowing them to optimise energy capture and operate in bi-directional flows. MCT has an agreement in place to supply SeaGen devices for the Minas Basin Pulp & Power site at FORCE in the Bay of Fundy.
- Jan 2017Grant (prize money)$9.2M
- Apr 2014Grant (prize money)$1.7M
- Dec 2009Grant (prize money)$4.4M
#10
Seed · Bristol, England · founded 2020 · 1 employees$1.9Mraised▾
Developer of therapeutics for the treatment of Covid-19. The company has developed proprietary pan coronavirus antiviral treatments such as HLTX-1 and HLTX-2 inhaled sprays to inhibit pathogenic human coronaviruses. Also developed small molecules of HLTX-3 GPR40 agonists to treat acute infections.
- May 2023Seed$1.9M
#11
Seed · Bristol, England · founded 2017 · 8 employees$2.8Mraised▾
IoT-enabled applications for power management. The platform offers a solution to take inputs from any source of ambient energy, many instances of the same source, or multiple different sources and can replace several others, capturing microwatts to milliwatts of energy from light, vibration, and thermal gradient harvesters for managing the outputs of these harvesters to capture the maximum energy. Applications include smart buildings, consumer electronics, asset monitoring, agriculture, wearables, healthcare, and home automation.
- May 2022Seed—
- Apr 2022Grant (prize money)$52.7K
- Nov 2019Grant (prize money)$2.6M
- Oct 2018Grant (prize money)$57.3K
#12
Seed · Bristol, England · founded 2015 · 10 employees$788.1Kraised▾
Provider of real-time data platform for asset and environmental monitoring. The platform offers configurable interfaces and analytical features to help businesses understand their data. It facilitates the monitoring of site operations, asset usage, and health and safety factors. The platform helps to identify inefficiencies and support site optimization through key performance indicators.
- Jun 2023Seed$267.7K
- Feb 2022Seed$306.1K
- Jun 2021Seed$214.3K
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
What Bristol researches in climate adaptation
- University of Bristol28
- Bristol-Myers Squibb2
- At Bristol1
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.