Best Sustainability Tech Companies in Flanders, Belgium
The 97 best Sustainability Tech companies in Flanders, Belgium in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: ExeVir Bio.
Our analysis of 293 Sustainability Tech companies
$38.4b in tracked funding; 83% of the stack-profiled cohort runs cloud-native; funding activity peaked in 2025.
Ranked: Best Sustainability Tech companies in Flanders
| # | Company | Disclosed funding | Last round | Employees | Founded | Founder | Tech stack | Patents & IP focus | Recent signals |
|---|---|---|---|---|---|---|---|---|---|
| 1 | ExeVir Bio Provider of antibody-based therapies to monitor viral infections | $50M | 41 mo ago | 11 | 2020 | — | WordPressMySQLPHP+19 | 23 patents Design of protein binders targeting coronavirus spike S2 subunit for antiviral therapeutics | — |
| 2 | Gorilla Provider of energy margin intelligence platform unifying commercial and operational data | $31M | 24 mo ago | 18 | 2018 | Thomas Sundert Co-Founder | WebflowAmazon Web ServicesAtlassian Statuspage+20 | — | 1 launch · 1 partnership · 2 awards |
| 3 | REstore Cloud-based automated demand response program solutions | $12M | 131 mo ago | 50 | 2010 | — | — | 43 patents Smart grid demand‑response and real‑time power metering analytics | — |
| 4 | Qpinch Waste heat recovery solutions | $12M | 57 mo ago | 11 11 → 14 (+27%) | 2012 | Christian Heeren Co-Founder & CCO | — | — | — |
| 5 | TrendMiner Developer of an industrial analytics platform for operational performance improvements | $10M | 118 mo ago | 70 | 2008 | — | WebflowApple iCloud MailMicrosoft 365+22 | 4 patents Industrial process monitoring via fingerprint analytics and advanced database management systems. | — |
| 6 | Enervalis SaaS platform for electric vehicles, microgrid and buildings | $8M | 70 mo ago | 31 | 2013 | — | — | 3 patents Control and optimization of hot water heating system operation | — |
| 7 | MCS Solutions SaaS-driven facility and workplace management software solution | $7M | 126 mo ago | 12 | 1989 | Koen Matthijs CEO | — | — | — |
| 8 | June SaaS-driven meter reading and energy management solutions | $6M | 46 mo ago | 1 | 2016 | Georges Lieben Co-Founder | HubSpot CMS HubStripeAmazon Web Services+24 | — | — |
| 9 | Beebop Provider of AI-powered energy orchestration platform | $6M | 21 mo ago | — | 2023 | Jan-Willem Rombouts Founder and CEO | Webflow EcommerceWebflowcore-js+12 | — | 1 partnership |
| 10 | Zero Friction Provider of SaaS platform for billing and customer interaction for heating | $5M | 21 mo ago | 15 | 2018 | Wim Jacobs CEO & Co-founder | WebflowApple iCloud MailMicrosoft 365+22 | — | 1 award |
| 11 | QustomDot Manufacturer of quantum dot LED solution | $3M | 36 mo ago | 10 10 → 17 (+70%) | 2020 | Igor Nakonechnyi Founder and Director | — | 23 patents Synthesis and surface engineering of core‑shell quantum dots and nanoparticle ligands | — |
| 12 | Smappee Provider of energy management and charging solutions for homes and businesses | $3M | 41 mo ago | 18 | 2012 | Stefan Grosjean Founder & Co-CEO | WordPress Block EditorWordPressMySQL+29 | 8 patents Real-time energy monitoring and control for smart home/grid power management | — |
| 13 | Resortecs Provider of textile recycling solutions using design-for-disassembly technology | $3M | 37 mo ago | 3 | 2017 | Cedric Vanhoeck Founder | — | — | — |
| 14 | iFLUX Platform offering groundwater management and soil remediation solutions | $3M | 47 mo ago | 11 | 2016 | Christian Montag Managing Director | HubSpot CMS HubMaterial Design LiteAnimate.css+15 | 12 patents Fluid flow measurement and monitoring devices, including flux sensors and compartmentalized filter packs. | 1 expansion |
| 15 | Laminaria Attenuator type wave energy converter | $2M | 105 mo ago | 1 | 2011 | — | — | 2 patents Marine vessel coupling mechanisms for ship-to-ship connections | — |
| 16 | Zapfloor SaaS-driven integrated workspace management solution for facility managers | $2M | 44 mo ago | 8 | 2015 | Wouter Schoofs CTO - founder | Webflow EcommerceCart FunctionalityWebflow+30 | — | — |
| 17 | EMAX AI and blockchain-based platform offering peer-to-peer renewable energy trading solutions | $2M | 79 mo ago | 2 | 2017 | Vu Thong Founder & CEO | — | — | — |
| 18 | InOpSys Mobile chemical units for on-site wastewater treatment for chemical and pharma companies | $1M | 80 mo ago | 16 16 → 35 (+119%) | 2015 | Steven De Laet CEO & MD | PHPAmazon Web ServicesNginx+11 | 3 patents Advanced water treatment technologies for removing organic pollutants and contaminants | 1 job opening |
| 19 | ClimateCamp Provider of a platform for calculating and reducing carbon emissions across supply chains | $719K | 14 mo ago | 10 | 2021 | Laurent Moyersoen Co-founder & CCO | — | — | 1 launch |
| 20 | NuReSys Provider of solutions for phosphate management | $610K | 45 mo ago | 1 | 2011 | Francois Decuypere CEO | — | — | — |
| 21 | ThermoVault Provider of smart controllers for optimizing energy use in water heaters. | $600K | 72 mo ago | 8 | 2017 | Sandro Lacovella Founder & CEO | Wix eCommerceWixSentry+9 | — | 1 partnership |
| 22 | Oblita Therapeutics Developer of therapeutics for infectious diseases | $412K | 85 mo ago | — | 2016 | Caroline Jansen Founder | — | 28 patents Lipid-based oleyl phosphocholine formulations for anti‑leishmanial therapy | — |
| 23 | Condugo Provider of energy management platform | $350K | 72 mo ago | 1 | 2015 | Xavier Moor Co-Founder & CEO | — | — | — |
| 24 | Cheqroom Equipment monitoring and tracking software provider | $263K | 51 mo ago | 42 42 → 52 (+24%) | 2013 | Vincent Theeten Co-Founder & CEO | Cart FunctionalityCraft CMSApple iCloud Mail+36 | — | 3 launchs |
| 25 | cast4all technologies Provider of energy monitoring platform for solar and related energy systems | $163K | 56 mo ago | — | 2001 | Herwig Mannaert Co-Founder | — | 3 patents Data transmission systems for network operation center communications and management | — |
| 26 | Act&Sorb Provider of wood recycling products and services | $118K | 96 mo ago | 16 | 2015 | Kenny Vanreppelen VP Operations Act&Sorb for Sibelco group (founder and former CEO) | — | 13 patents Manufacturing mesoporous activated carbon from carbonized wood-based materials | — |
Top 12 Sustainability Tech companies in Flanders
#1
Seed · Antwerp, Flanders · founded 2023$5.5Mraised▾
Provider of AI-powered energy orchestration platform. It offers AI virtual power plant to manage energy systems through AI orchestration. The platform creates virtual power plants from decentralized grid resources. It offers AI orchestration middleware to reduce Co2 emissions. Features include integration, reporting, trading, and more.
- Sep 2024Seed$5.5M
#2
Seed · Ghent, Flanders · founded 2018 · 15 employees$5.1Mraised▾
Provider of SaaS platform for billing and customer interaction for heating. The platform streamlines invoicing processes and facilitates transparent communication with end consumers through a self-service portal. It offers features such as predicting invoice amounts and providing real-time overviews of billed and unbilled amounts. The platform supports meter-to-cash processes, aiming to simplify invoicing, cash collection, and cost allocation. It integrates into existing IT landscapes, offering automated billing and customer service.
- Sep 2024Seed$2.8M
- Sep 2022Seed$2.3M
#3
Seed · Antwerp, Flanders · founded 2021 · 10 employees$719.1Kraised▾
Provider of a platform for calculating and reducing carbon emissions across supply chains. It offers tools to calculate corporate and product carbon footprints, engaging suppliers to improve data accuracy. The platform facilitates collaboration on emission reduction targets and progress tracking, enabling the sharing of product carbon footprint data with customers. This helps companies improve the accuracy of their Scope 3 emissions reporting and accelerate their progress toward net-zero goals by streamlining data collection and enhancing value chain collaboration.
- Mar 2025Seed$3.8M
- Nov 2022Seed$719.1K
#4
Series B · Antwerp, Flanders · founded 2018 · 18 employees$31Mraised▾
Provider of energy margin intelligence platform unifying commercial and operational data. The platform connects commercial, operational, and trading systems, providing teams with a unified view of cost, risk, and margin. It aligns pricing, forecasting, and billing to prevent mismatches and reduce leakage. The platform offers features such as contract-level margin visibility and portfolio insights for growth decisions.
- Jun 2024Series B$24.7M
- Dec 2022Series A$6.3M
#5
Series A · Ghent, Flanders · founded 2020 · 11 employees$49.6Mraised▾
Provider of antibody-based therapies to monitor viral infections. It has developed VHH that are single-domain antibody fragments derived from camelids. Its lead product VHH72-FC helps to bind conserved regions on the spikes of SARS-CoV-2, which are essential for the virus to enter the cell. It helps to stop the infection and viral replication supports the patient’s immune response by reducing the viral load and dampening local and systemic inflammation.
- Jan 2023Venture Debt$26.6M
- Dec 2021Grant (prize money)$6.8M
- Mar 2021Series A$22.7M
- Jul 2020Series A$27M
#6
Series A · Ghent, Flanders · founded 2020 · 10 employees$3.3Mraised▾
Manufacturer of quantum dot LED solution. It manufactures quantum dots that can be applied to LED, watches, mobile phones, and goggles. They are tiny semiconductors that transform UV light into other pure colors. It can also be used in smartphones, AR/VR goggles, and more.
- 2023Grant (prize money)$6.6M
- Sep 2022Grant (prize money)$705.3K
- Feb 2020Series A$3.3M
#7
Seed · Lievegem, Flanders · founded 2017 · 3 employees$2.6Mraised▾
Provider of textile recycling solutions using design-for-disassembly technology. This involves the development and implementation of heat-dissolvable stitching threads and thermal disassembly systems. These systems enable efficient separation of different fabrics and automatic removal of trims, significantly improving the recyclability rate of textile products. The technology is offered to brands, recyclers, and other stakeholders in the textile industry, facilitating high-quality textile-to-textile recycling on an industrial scale. The process aims to reduce textile waste and carbon emissions associated with textile production and disposal.
- Apr 2023Seed$2.6M
- Nov 2022Grant (prize money)$2.8M
- Jun 2022Grant (prize money)$2.6M
#8
Seed · Antwerp, Flanders · founded 2016 · 1 employees$5.5Mraised▾
SaaS-driven meter reading and energy management solutions. The platform analyzes consumption and accordingly finds ways to reduce energy usage. The platform enables users to change energy suppliers, track consumption, analyze solar production, and more.
- Aug 2022Seed$3.1M
- Jul 2018Angel$2.5M
#9
Series B · Antwerp, Flanders · founded 2012 · 11 employees$11.8Mraised▾
Waste heat recovery solutions. It offers a chemical process to recycle waste heat to a more helpful level than conventional heat pumps by recycling heat from industrial waste in the steam process to be reused. It uses liquid polyphosphates in a two-stage process to capture heat from hot water or low-grade steam. In the first reactor, the waste heat drives a condensation reaction to make phosphate oligomers, releasing water. In the second reactor, water is added back and has a hydrolysis reaction that releases heat.
- Sep 2021Series B$11.8M
- Oct 2016Grant (prize money)$483.1K
#10
Series A · Harelbeke, Flanders · founded 2012 · 18 employees$2.7Mraised▾
Provider of energy management and charging solutions for homes and businesses. The company offers systems to control and monitor energy use efficiently. These systems allow users to direct energy to consumers and storage. The company also provides charging stations for electric vehicles. It serves installers and energy service providers with energy efficiency products.
- Jan 2023Grant (prize money)—
- Jan 2016Series A$2.7M
#11
Series A · Houthalen Helchteren, Flanders · founded 2013 · 31 employees$7.8Mraised▾
Enervalis works with smart city municipalities and companies in the electric vehicle, construction, and utility industries. It offers a SaaS platform Smartpower Suite, a middleware operating system for application verticals - smart EV, Smart Buildings, and Smart Microgrids.
- Aug 2020Series A$3.3M
- May 2019Series A—
- May 2018Grant (prize money)$381.1K
- Dec 2017Grant (prize money)$815.1K
#12
Funding Raised · Niel, Flanders · founded 2016 · 11 employees$2.6Mraised▾
Platform offering groundwater management and soil remediation solutions. The company offers technology for measuring and analyzing the movement of contamination in groundwater.
- Jul 2022Grant (prize money)$2.5M
- 2021Grant (prize money)$56.6K
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
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.