Best Environment Tech Companies in Wales, United Kingdom
The 32 best Environment Tech companies in Wales, United Kingdom in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: Fiberight.
Our analysis of 58 Environment Tech companies
$4.0b in tracked funding; 85% of the stack-profiled cohort runs cloud-native; funding activity peaked in 2025.
Ranked: Best Environment Tech companies in Wales
| # | Company | Disclosed funding | Last round | Stage | Founder | Founded | Tech stack | Patents & IP focus | Recent signals |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Fiberight Provider of waste collection services | $28M | 177 mo ago | Deadpooled | Craig Paul Co-Founder & CEO | 2009 | — | 27 patents Patents concentrated in transport & manufacturing processes | — |
| 2 | Sure Chill Develops a refrigeration system for use with intermittent power | $12M | 92 mo ago | Series A | Peter Saunders Co-Founder | 2002 | — | 84 patents Portable refrigeration and cooling systems for mobile and modular thermal management | — |
| 3 | Bloemteknik Provider of precision LED lighting solutions and autonomous control systems 24Product top 47%Talent bottom 49%Global bottom 45%Funding bottom 44% All 4 signals ▾Producttop 47% Talentbottom 49% Globalbottom 45% Fundingbottom 44% Product: 2 published apps (30 installs) · Company stage: Series A Talent: 1 named leader on record · 1 C-suite/founder profile curated rank vs industry peers · Fliar Intelligence Index 24/100 | $3M | 10 mo ago | Series A | James Fleet Co-Founder & CEO | 2023 | — | — | — |
| 4 | Deer Technology Provider of meter reading solutions for commercial applications | $2M | 65 mo ago | Seed | Garry Jackson Co-Founder | 2014 | — | — | — |
| 5 | monva Comparison platform for credit cards | $1M | 67 mo ago | Deadpooled | — | 2018 | — | — | — |
| 6 | Seren Photonics Manufacturer of substrate | $704K | 102 mo ago | Seed | Godfrey Ainsworth Chairman & CEO | 2009 | — | 50 patents Patents concentrated in electrical & electronics | — |
| 7 | Renbee Platform connecting homeowners with installers for home decarbonisation projects | $411K | 27 mo ago | Seed | Andrei Co-Founder | 2023 | — | — | — |
| 8 | Deregallera Provider of tech-enabled solutions for building energy management | — | 88 mo ago | Funding Raised | — | 2009 | — | 53 patents Patents concentrated in health & consumer products | — |
Top 8 Environment Tech companies in Wales
#1
Series A · Cardiff, Wales · founded 2023$3.4Mraised▾
Provider of precision LED lighting solutions and autonomous control systems. It specializes in creating customized LED lighting systems tailored for various horticultural applications, including vertical farms and greenhouses. Their offer include modular and adaptable lighting systems designed to optimize plant growth and productivity.
- Jan 2026Series A$3.4M
#2
Deadpooled · Abergavenny, Wales · founded 2009 · 15 employees$27.9Mraised▾
Provider of waste collection services
- Jan 2012Conventional Debt$25M
- Sep 2010Grant (prize money)$2.9M
- Angel—
#3
Series A · Cardiff, Wales · founded 2002 · 26 employees$12.2Mraised▾
Develops a refrigeration system for use with intermittent power. The Sure Chill refrigeration system works by using a compartment surrounded by a cladding of water. Electric power is used to freeze the water. When power is not available, the ice melts and starts to rise. The system can be connected to renewable energy sources such as solar for off-grid applications, or the grid.
- Feb 2019Series A$9.2M
- Feb 2018Series A$7.1M
- Aug 2015Grant (prize money)$1.5M
- Nov 2012Seed$695K
#4
Seed · Monmouthshire, Wales · founded 2023$411.5Kraised▾
Platform connecting homeowners with installers for home decarbonisation projects. It streamlines the process of finding and managing installers for homeowners seeking to implement renewable energy solutions. The platform facilitates quoting, planning, and regulatory compliance, ensuring homeowners are connected with installers who deliver quality work. It also provides installers with access to a consistent stream of homeowners and resources for training and compliance.
- Jul 2024Seed$411.5K
#5
Seed · Port Talbot, Wales · founded 2014 · 11 employees$1.8Mraised▾
Provider of meter reading solutions for commercial applications. The product offerings include LimpetReader - it is a device that takes pictures of the meter and converts the image to a data value, AutoReader - which automatically takes readings and sends the data to a secure database, and Handreader - a meter reading solution that is accessed securely online.
- May 2021Seed$1.8M
#6
Deadpooled · Deeside, Wales · founded 2018 · 2 employees$1.2Mraised▾
Monva offers a credit card comparison platform for consumers. It provides virtual assistance to consumers for making choices about credit cards. It enables to manage quotes, offers, switching of cards, and renewals through the central account. It offers a comparison of credit cards for money transfers, purchases, and more.
- Mar 2021Seed$616.5K
- Apr 2020Seed$541.4K
#7
Seed · Bridgend, Wales · founded 2009 · 3 employees$704.3Kraised▾
Seren Photonics manufactures substrates. Its products include polar, semi-polar and non-polar Gallium Nitride (GaN) templates and components for LED's, lasers, VCSELs and power switches. Has patented the technology which can significantly increase efficiencies of LEDs at high power levels. Also, the templates are used for manufacturing high-efficiency MicroLEDs for display technologies. The company has partnered with BluGlass.
- Apr 2018Seed$704.3K
- Feb 2018Seed—
#8
Funding Raised · Caerphilly, Wales · founded 2009 · 3 employees—raised▾
Provider of tech-enabled solutions for building energy management. It offers a research and development company focused on creating sustainable energy storage and electric drive technology. It is also developing a hybrid energy storage system to extend the life of an electric vehicle battery.
- Jun 2019Grant (prize money)—
Funding & investor landscape
Notable founders
Market landscape — 10 sub-themes by coverage
Share of Environment Tech coverage by sub-theme.
Regulatory-risk over time flat
Funding & growth over time
funding rising · growth rising
What Wales researches in environmental monitoring
- Natural Resources Wales25
- New South Wales Department of Primary Industries16
- University of Wales Trinity Saint David1
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.