Best Sustainability Tech Companies in Belgium
The 223 best Sustainability Tech companies in Belgium in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: Virya Energy.
Belgium's Sustainability Tech sector has $620M in disclosed funding spread across 223 tracked companies, and this directory ranks them by equity raised and recent funding momentum. Virya Energy leads the pack at $100M, with Gorilla at $31M and Volition at $40M rounding out the top tier. No unicorns yet, but the capital concentration at the top is real. The global market these companies are competing in sat at $16.2B in 2022 and is forecast to reach $122.7B by 2032, a 23.8% CAGR that makes the Belgian funding pool look modest against the opportunity. What's pulling that growth? Smart grid adoption, low-carbon infrastructure investment, and a broad shift toward green technology solutions.
So where does Belgium fit? Honestly, it's a market still building density. Smaller raises from D-CRBN ($3M) and ARK Capture Solutions ($2M) show early-stage activity is alive, and investors like Noshaq, SRIW, and imec.istart are writing checks. The sector's biggest structural headwind is a regulatory gap, with no unified framework for green technology yet standardized across markets, which you'll want to factor into any due diligence. Hot themes right now lean hard into EV, from battery technology to next-generation powertrain platforms, as eco-friendly innovation draws more attention globally. Belgium won't produce a unicorn from thin air, but the funding trajectory here is pointing up.
- MarketsandMarkets
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 Belgium
| # | Company | Disclosed funding | Last round | Stage | Employees | Founder | Tech stack | Patents & IP focus | Recent signals |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Virya Energy Online platform offering hydrogen-based energy solutions | $100M | 3 mo ago | Late Stage | 22 | — | WordPressMySQLRedis+20 | — | 1 expansion |
| 2 | Imcyse Developer of a portfolio of pharmaceuticals against multiple diseases | $57M | 64 mo ago | Series B | 48 | Denis Bedoret CEO | — | 216 patents Therapeutic peptide design for autoimmune disease treatment, e.g., diabetes and neuromyelitis optica | — |
| 3 | ExeVir Bio Provider of antibody-based therapies to monitor viral infections | $50M | 41 mo ago | Series A | 11 | — | WordPressMySQLPHP+19 | 23 patents Design of protein binders targeting coronavirus spike S2 subunit for antiviral therapeutics | — |
| 4 | Volition Developer of cancer diagnostic tests | $40M | 2 mo ago | Public | 104 | Cameron Reynolds CEO | WordPressMySQLPHP+26 | — | 1 launch · 1 partnership |
| 5 | SmartNodes Provider of mesh-enabled smart street lighting solutions | $35M | 129 mo ago | Acquired | 25 | Guy Lejeune Co-Founder | — | — | — |
| 6 | e-peas Developer of power management integrated circuits for energy harvesting applications | $32M | 26 mo ago | Series C | 15 | Julien Vos Co-Founder | WordPressMySQLPHP+22 | 66 patents Power‑management ICs for energy harvesting, voltage conversion, and image‑zoom control | — |
| 7 | Aelin Therapeutics Developer of antibiotics based on protein aggregation approach | $32M | 90 mo ago | Series A | 35 | Joost Schymkowitz Founder | — | 27 patents Small‑molecule inhibitors targeting mutant RAS proteins for cancer therapy | — |
| 8 | Uteron Pharma Developing products dedicated to female healthcare. | $31M | 170 mo ago | Deadpooled | 13 | Stijn Van Rompay Founder | — | — | — |
| 9 | Gorilla Provider of energy margin intelligence platform unifying commercial and operational data | $31M | 24 mo ago | Series B | 18 | Thomas Sundert Co-Founder | WebflowAmazon Web ServicesAtlassian Statuspage+20 | — | 1 launch · 1 partnership · 2 awards |
| 10 | AstriVax Developer of prophylactic vaccines for the treatment of infectious diseases | $30M | 30 mo ago | Seed | — | Hanne Callewaert Chief Executive Officer | WordPressMySQLPHP+13 | — | 1 launch |
| 11 | Ampacimon Provider of software and sensor solutions for electrical grid monitoring | $15M | 32 mo ago | Series C | 29 29 → 72 (+148%) · sector median +48% | Stephan Heberer CEO | WebflowMemberStackcore-js+16 | 54 patents Drone-based inspection and protection systems for high‑voltage power line monitoring and safety | 2 partnerships · 1 award |
| 12 | Xylowatt Technology solution to convert waste into energy | $14M | 133 mo ago | Series A | 13 | Olivier Lefebvre ex-CEO | — | 16 patents Solid carbon fuel gasification equipment and methods for converting solid carbon into synthesis gas | — |
| 13 | Racktivity Power management & environmental control for data centers | $13M | 160 mo ago | Deadpooled | 11 | — | — | 15 patents Patents concentrated in electrical & electronics | — |
| 14 | REstore Cloud-based automated demand response program solutions | $12M | 131 mo ago | Acquired | 50 | — | — | 43 patents Smart grid demand‑response and real‑time power metering analytics | — |
| 15 | Qpinch Waste heat recovery solutions | $12M | 57 mo ago | Series B | 11 11 → 14 (+27%) · sector median +48% | Christian Heeren Co-Founder & CCO | — | — | — |
| 16 | TrendMiner Developer of an industrial analytics platform for operational performance improvements | $10M | 118 mo ago | Acquired | 70 | — | WebflowApple iCloud MailMicrosoft 365+22 | 4 patents Industrial process monitoring via fingerprint analytics and advanced database management systems. | — |
| 17 | Sitemark Provider of a platform for managing solar projects across lifecycles | $9M | 64 mo ago | Series A | 28 28 → 56 (+100%) · sector median +48% | Stanislas Vaeren Co-Founder | WebflowApple iCloud MailMicrosoft 365+19 | — | — |
| 18 | Santero Therapeutics Developer of antibiotics to target resistant pathogens | $9M | 36 mo ago | Series A | 3 | Abel Pino Co-Founder | BackdropOdooPHP+10 | — | 1 partnership |
| 19 | Enervalis SaaS platform for electric vehicles, microgrid and buildings | $8M | 69 mo ago | Series A | 31 | — | — | 3 patents Control and optimization of hot water heating system operation | — |
| 20 | MCS Solutions SaaS-driven facility and workplace management software solution | $7M | 126 mo ago | Acqui-Hired | 12 | Koen Matthijs CEO | — | — | — |
| 21 | Sirona Technologies Provider of carbon removal services | $6M | 23 mo ago | Seed | — | Thoralf Gutierrez Co-Founder & CEO | WebflowGSAPLeadfeeder+14 | — | 2 partnerships · 1 expansion |
| 22 | European Microfinance Network connecting microfinance institutions and social finance organizations. | $6M | 29 mo ago | Funding Raised | — | — | WordPressTypeScriptPHP+29 | — | — |
| 23 | June SaaS-driven meter reading and energy management solutions | $6M | 46 mo ago | Seed | 1 | Georges Lieben Co-Founder | HubSpot CMS HubStripeAmazon Web Services+24 | — | — |
| 24 | Beebop Provider of AI-powered energy orchestration platform | $6M | 21 mo ago | Seed | — | Jan-Willem Rombouts Founder and CEO | Webflow EcommerceWebflowcore-js+12 | — | 1 partnership |
| 25 | Zero Friction Provider of SaaS platform for billing and customer interaction for heating | $5M | 21 mo ago | Seed | 15 | Wim Jacobs CEO & Co-founder | WebflowApple iCloud MailMicrosoft 365+22 | — | 1 award |
| 26 | Opinum Cloud-based platform to analyse and visualise energy and environmental data | $4M | 106 mo ago | Acquired | 11 11 → 13 (+18%) · sector median +48% | Loïc Bar CEO | Azure Front DoorAzureCloudflare+6 | — | — |
| 27 | H2WIN Online platform offering hydrogen-based bioenergy solutions | $3M | 43 mo ago | Series A | 1 | Philippe Lorge CEO & Scientific Director | — | 29 patents Enzymatic and photocatalytic hydrogen generation technologies. | — |
| 28 | QustomDot Manufacturer of quantum dot LED solution | $3M | 36 mo ago | Series A | 10 10 → 17 (+70%) · sector median +48% | Igor Nakonechnyi Founder and Director | — | 23 patents Synthesis and surface engineering of core‑shell quantum dots and nanoparticle ligands | — |
| 29 | D-CRBN Provider of industrial-scale CO2-to-CO conversion technology. | $3M | 0 mo ago | Series A | 2 | David Ziegler Co-Founder & CCO | Cart FunctionalityWordPressMySQL+25 | 33 patents Plasma-based CO₂-to-CO conversion reactors for gas upgrading and chemical synthesis | 1 job opening |
| 30 | Smappee Provider of energy management and charging solutions for homes and businesses | $3M | 41 mo ago | Series A | 18 | Stefan Grosjean Founder & Co-CEO | WordPress Block EditorWordPressMySQL+29 | 8 patents Real-time energy monitoring and control for smart home/grid power management | — |
| 31 | Resortecs Provider of textile recycling solutions using design-for-disassembly technology | $3M | 37 mo ago | Seed | 3 | Cedric Vanhoeck Founder | — | — | — |
| 32 | iFLUX Platform offering groundwater management and soil remediation solutions | $3M | 47 mo ago | Funding Raised | 11 | 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 |
| 33 | Laminaria Attenuator type wave energy converter | $2M | 105 mo ago | Deadpooled | 1 | — | — | 2 patents Marine vessel coupling mechanisms for ship-to-ship connections | — |
| 34 | ARK Capture Solutions Developer of low-cost, high-impact point-source carbon capture technology | $2M | 14 mo ago | Seed | — | Samuel Thiry Co-Founder & CEO | WordPressPleskMySQL+22 | — | 1 job opening · 3 awards |
| 35 | Shayp Provider of water leakage detection solution | $2M | 66 mo ago | Seed | 18 18 → 22 (+22%) · sector median +48% | Gregoire De Hemptinne Co-founder and Managing director | — | 3 patents Water leak detection systems for residential and commercial plumbing | — |
| 36 | Companion.energy Energy management software | $2M | 25 mo ago | Seed | 2 | Thomas Vyncke Co-Founder | WebflowGSAPAzure+29 | — | — |
| 37 | NOVOBIOM Biotechnology company focused on fungal bioremediation and bioconversion | $2M | 24 mo ago | Seed | 4 | Jean-Michel Scheuren Co-Founder & CEO | WordPressApple iCloud MailGoogle Workspace+18 | 23 patents Patents concentrated in chemistry & materials | 1 award |
| 38 | Zapfloor SaaS-driven integrated workspace management solution for facility managers | $2M | 44 mo ago | Series A | 8 | Wouter Schoofs CTO - founder | Webflow EcommerceCart FunctionalityWebflow+30 | — | — |
| 39 | EMAX AI and blockchain-based platform offering peer-to-peer renewable energy trading solutions | $2M | 79 mo ago | Funding Raised | 2 | Vu Thong Founder & CEO | — | — | — |
| 40 | Ethernetics Provider of solutions to automate data center operations | $2M | 35 mo ago | Seed | 9 | Jan Dezutter Co-Founder | — | 8 patents Intelligent power distribution units optimizing power delivery to multi-PSU data‑center equipment | 2 partnerships |
| 41 | Enersee AI-driven platform designed for energy managers to optimize energy utilization | $1M | 9 mo ago | Seed | 5 | Maarten Van De Vijver Founder & CTO | WebflowApple iCloud MailMicrosoft 365+21 | — | 1 launch |
| 42 | InOpSys Mobile chemical units for on-site wastewater treatment for chemical and pharma companies | $1M | 80 mo ago | Seed | 16 16 → 35 (+119%) · sector median +48% | Steven De Laet CEO & MD | PHPAmazon Web ServicesNginx+11 | 3 patents Advanced water treatment technologies for removing organic pollutants and contaminants | 1 job opening |
| 43 | Thegreenshot Provider of sustainable audiovisual production management software | $890K | 36 mo ago | Funding Raised | 20 | — | WordPressMySQLPHP+28 | — | — |
| 44 | ClimateCamp Provider of a platform for calculating and reducing carbon emissions across supply chains | $719K | 14 mo ago | Seed | 10 | Laurent Moyersoen Co-founder & CCO | — | — | 1 launch |
| 45 | NuReSys Provider of solutions for phosphate management | $610K | 45 mo ago | Funding Raised | 1 | Francois Decuypere CEO | — | — | — |
| 46 | ThermoVault Provider of smart controllers for optimizing energy use in water heaters. | $600K | 72 mo ago | Funding Raised | 8 | Sandro Lacovella Founder & CEO | Wix eCommerceWixSentry+9 | — | 1 partnership |
| 47 | 24SEA Offshore monitoring and engineering service provider | $543K | 32 mo ago | Funding Raised | — | Freek Couttenier Co-Founder | — | — | — |
| 48 | Zensor IoT-based monitoring for industrial assets | $280K | 39 mo ago | Seed | 12 | Yves Van Ingelgem Founder | Cart FunctionalityStrikinglyNginx+23 | 6 patents Smart sensor-based strain monitoring for fastened joints and mechanical assemblies | — |
| 49 | Cheqroom Equipment monitoring and tracking software provider | $263K | 51 mo ago | Series B | 42 42 → 52 (+24%) · sector median +48% | Vincent Theeten Co-Founder & CEO | Cart FunctionalityCraft CMSApple iCloud Mail+36 | — | 3 launchs |
Top 12 Sustainability Tech companies in Belgium
#1
Late Stage · Braine l Alleud, Wallonia · founded 2019 · 22 employees$100.3Mraised▾
Online platform offering hydrogen-based energy solutions. It is active in the development, financing, construction, and operation of sustainable energy sources. It provides sustainable green energy production, and services for sustainable, green energy hydrogen production and distribution.
- Feb 2026PE$100.3M
#2
Public · Gembloux, Wallonia · founded 1995 · 104 employees$40Mraised▾
Developer of cancer diagnostic tests. The Nu-Q is used for early cancer diagnostics by detecting nucleosome markers of cancer and early-stage cells in the blood. It has also developed vet cancer screening tests.
- Mar 2026Post IPO$2.3M
- May 2025Post IPO$22.6M
- Mar 2024Post IPO$100K
- Dec 2023Post IPO$5.4M
#3
Series A · Antwerp, Antwerp Province · founded 2021 · 2 employees$2.7Mraised▾
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- Mar 2024Grant (prize money)$2.7M
#4
Seed · Brussels, Brussels · founded 2021 · 5 employees$1.3Mraised▾
AI-driven platform designed for energy managers to optimize energy utilization. It helps detect issues, identify improvement areas, and make informed decisions.
- Sep 2025Seed$4.7M
- Jun 2023Seed$1.3M
#5
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
#6
Seed · Ottignies Louvain la Neuve, Wallonia · founded 2024$2.4Mraised▾
Developer of low-cost, high-impact point-source carbon capture technology. This technology addresses industrial flue gases with low CO₂ concentrations, a currently unserved market representing a significant portion of global emissions. The solution features low energy consumption, a modular design, and autonomous operation, eliminating the need for hazardous materials. It aims to prevent CO₂ release at the source, contributing to a sustainable future.
- Mar 2025Seed$2.4M
#7
Series C · Louvain la Neuve, Wallonia · founded 2014 · 15 employees$32.1Mraised▾
Developer of power management integrated circuits for energy harvesting applications. The company offers ambient energy managers designed for various energy sources. These integrated circuits manage power from energy harvesters to storage elements. The company's products support applications in smart homes, consumer electronics, and industrial IoT. The company also provides microcontrollers for data acquisition and processing.
- Mar 2024Series C$19M
- Jul 2020Series B$9M
- Jan 2019Grant (prize money)$626.4K
- Oct 2017Series A$4.1M
#8
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
#9
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
#10
Seed · Brussels, Brussels · founded 2022$6.4Mraised▾
Provider of carbon removal services. It provides services to fight climate change by removing carbon from the air with a low capex design and scalable DAC technology.
- Jun 2024Seed$6.4M
#11
Seed · Leuven, Flemish Region · founded 2022$29.9Mraised▾
Developer of prophylactic vaccines for the treatment of infectious diseases. The company uses DNA-based technology to develop the plasmid-launched live attenuated virus platform for targeted delivery and immune response. The company has developed a product pipeline for Yellow Fever, Rabies, and Chronic Hepatitis B.
- Dec 2023Grant (prize money)$3.2M
- May 2023Grant (prize money)$2.7M
- Aug 2022Seed$29.9M
#12
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
Funding & investor landscape
Notable founders
How research on Climate Adaptation is moving in Belgium
A read on the academic research around Climate Adaptation — which themes are gaining ground, the institutions and researchers driving them, and how the tone is shifting. Based on 112 Belgium-affiliated papers.
- University of Antwerp19
- KU Leuven14
- Vrije Universiteit Brussel10
- Flemish Institute for Technological Research7
- European Commission6
- Climate change3
- Green infrastructure2
- Bond2
- Project finance2
- Investment (military)2
- Flood myth3→14
- Resilience (materials science)1→4
- Climate change2→30
- Psychological resilience1→10
- Resilience (materials science)1→7
- Flood myth1→5
Where climate adaptation is researched across Belgium
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.
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.