Best Energy Tech Companies in Bristol, United Kingdom
The 38 best Energy Tech companies in Bristol, United Kingdom in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: Vertical Aerospace.
Our analysis of 58 Energy Tech companies
$7.3b in tracked funding; 82% of the stack-profiled cohort runs cloud-native; funding activity peaked in 2025.
Ranked: Best Energy Tech companies in Bristol
| # | Company | Last round | Disclosed funding | Employees | Founder | Tech stack | Web popularity | Patents & IP focus | Recent signals |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Auriga Energy Developer of fuel cell system for marine applications | — | — | 1 | — | — | — | — | — |
| 2 | BEMS Energy Provider of an energy management solution for commercial spaces | — | — | 15 | Mark Davies Founder & Director | — | — | — | — |
| 3 | Bitbloom Developer of data analytics software for renewable energy asset performance improvement | — | — | 4 | Michael Tinning Co-Founder | WordPressMySQLPHP+19 | Top 50M | — | — |
| 4 | Car Sloth Online car subscription platform | — | — | — | Nik Andreev Founder | Webflow EcommerceWebflowcore-js+17 | Top 5M | — | — |
| 5 | Celltris Technology solution for eliminating wasted internal space in lithium-ion cells | — | — | — | Ian Hunt Co-Founder & CEO | — | — | — | — |
| 6 | Eclass Developer of electric kick scooters | — | — | — | Roy - Founder | — | — | — | — |
| 7 | Electric Aviation Group Developer of electric aircraft | — | — | 4 | — | — | — | 80 patents Electric aircraft power generation, storage, and distribution management systems | — |
| 8 | Energy & Technical Services Provider of energy management and environmental sustainability services | — | — | 51 | Philip Warren Founder & CEO | — | — | — | — |
Top 12 Energy Tech companies in Bristol
#1
Public · Bristol, England · founded 2016 · 306 employees$257.9Mraised▾
Developer of electric vertical takeoff and landing aircraft technologies. The company focuses on advancing sustainable air mobility through research and development. It aims to create innovative solutions for future transportation needs. The company is dedicated to engineering and technological progress within the aerospace sector.
- Mar 2026Post IPO$300M
- Jan 2024Angel$50M
- Oct 2021Series A$205M
- Jun 2021Seed—
#2
Series A · Bristol, England · founded 2016 · 25 employees$20.8Mraised▾
Developer of dry coating precursor technology for battery electrode manufacturing. The technology facilitates dry material mixing and processing for battery manufacturers. It designs composite powders optimized for electrode film formation and electrochemical performance. The technology formulates powders containing active material, binder, and conductive additives. Powders are manufactured using scalable, energy-efficient chemical engineering approaches.
- Dec 2025Series A$1.9M
- Sep 2024Series A$13.7M
- May 2023Grant (prize money)$214.6K
- Aug 2022Seed$4.8M
#3
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
#4
Seed · Bristol, England · founded 2018 · 209 employees$28.2Mraised▾
Pure Electric is an online retailer offering multi-category electric two-wheelers. The platform enables users to buy electric kick scooters, electric bikes, electric cargo bikes, etc. It offers multi-brand of vehicles like Xiaomi, Bird, Cube, Kona, etc. It offers features like multiple payment options, maintenance services, etc.
- Oct 2024Seed—
- Mar 2023Conventional Debt$15.1M
- Oct 2022Seed—
- Mar 2022Conventional Debt$13.1M
#5
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
#6
Acquired · Bristol, England · founded 2014 · 44 employees$14.1Mraised▾
Developer of a digital platform designed to aggregate charging point data from multiple charge point operators. The company's platform generates revenue from its application and also from Business-to-Business channels, licensing data to third parties, and giving insights into the electric vehicle and charging market and its digital services to help and support drivers to make a seamless, enjoyable, switch to electric vehicles, accelerating the transition to a cleaner, greener, future, enabling electric vehicle owners to search for available charge points, plan longer electric journeys, pay for charging, and share updates with other electric vehicle drivers.
#7
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
#8
Acquired · Bristol, England · founded 2012$12.3Mraised▾
Network of electric vehicle charging points and payment processing services. It offers tools for locating charging stations and facilitating payments. The network provides solutions for electric vehicle drivers to find available charging points. It also offers services for businesses to integrate electric vehicle charging solutions.
- Aug 2022Series A$10.9M
- Mar 2019Seed$1.4M
#9
Seed · Bristol, England · founded 2021 · 2 employees$6.2Mraised▾
Provider of solutions for green hydrogen generation. It provides solutions to make the electrolysis process economical and sustainable.
- Jun 2023Seed$6.2M
- Seed—
#10
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—
#11
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
#12
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
Funding & investor landscape
Notable founders
Market landscape — 10 sub-themes by coverage
Share of Energy Tech coverage by sub-theme.
Regulatory-risk over time rising
Funding & growth over time
funding rising · growth rising
How research on Grid Energy Storage is moving in the United Kingdom
A read on the academic research around Grid Energy Storage — which themes are gaining ground, the institutions and researchers driving them, and how the tone is shifting. Based on 2,113 United Kingdom-affiliated papers.
- Imperial College London185
- University of Birmingham115
- University of Cambridge109
- University College London102
- Institute of Physics98
- Battery (electricity)10→109
- Renewable energy5→85
- Electrolyte5→81
- Electrochemistry4→72
- Cathode4→66
- Renewable energy6→223
- Battery (electricity)11→144
- Thermal energy storage5→125
- Photovoltaic system1→71
- Electricity4→73
- Renewable energy5→96
- Battery (electricity)6→65
- Electrolyte3→32
- Nanotechnology5→32
- Cathode2→25
Where energy storage is researched across United Kingdom
Location clusters by institution affiliation — each city's volume, stance tone, and a quick read on its hot topic, what's advancing, the opening opportunity, and the main concern.
Who's filing energy storage patents in the United Kingdom
United Kingdom energy storage patent filing is accelerating — 891 filings from 356 assignees (2016–2025), led by Dyson Technology, Highview Entpr, Sunamp; annual filings 61→106.
- Dyson Technology97
- Highview Entpr45
- Sunamp35
- Jaguar LAND Rover34
- Gravitricity33
- Power ROLL33
- Isentropic32
- GE Energy Power Conversion Techn27
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.