Best High Tech Companies in Wallonia, Belgium
The 66 best High Tech companies in Wallonia, Belgium in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: Nyxoah.
Our analysis of 1,127 High Tech companies
$222.2b in tracked funding; 89% of the stack-profiled cohort runs cloud-native; funding activity peaked in 2025.
Ranked: Best High Tech companies in Wallonia
| # | Company | Disclosed funding | Last round | Employees | Founder | Tech stack | Web popularity | Patents & IP focus | Recent signals |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 4C-trading Trading signals provider for crypto & forex assets | — | — | — | JULIEN Co-Founder | — | — | — | — |
| 2 | ACIC Video analysis solutions for security and surveillance | — | — | — | Arnaud Bastide CEO | — | — | — | — |
| 3 | AltiGator Radio controlled aircrafts for aerial photography & video | — | — | 1 | Georgios Argyrakis Founder | Cart FunctionalityWordPressMySQL+31 | Top 10M | — | — |
| 4 | Apiquiet Provider of devices for elderly care | — | — | 2 | Gregory Lenoir Founder & CEO | — | — | — | — |
| 5 | Armin Robot Develops a robot for industrial automation purposes | — | — | 5 | Thomas Janquart Owner | PythonVimeoYouTube+13 | Top 50M | — | — |
| 6 | Atheris Services IoT based data management platform | — | — | — | Xavier Streel Co-Founder | — | — | — | — |
| 7 | Axinesis Developer of robots for upper limb rehabilitation of patients with brain injury | — | — | 2 | Julien Sapin Founder & Cto | WordPressMySQLPHP+31 | Top 50M | 9 patents Physical therapy rehabilitation devices for therapeutic exercise and patient mobility. | — |
| 8 | BATS Provider of drone radars and sensor solutions for protection and surveillance | — | — | 6 | Mauro Costa CEO | WordPressMySQLPHP+17 | Top 50M | — | — |
Top 12 High Tech companies in Wallonia
#1
Public · Mont Saint Guibert, Wallonia · founded 2009 · 11 employees$88.7Mraised▾
Provider of a neurostimulation device for obstructive sleep apnea treatments. The company's product BLAST-OSA (BiLAteral Hypoglossal Nerve Stimulation for Treatment of Obstructive Sleep Apnea) is used for treating sleep apnea and calculating ODI (Oxygen Desaturation Index) and AHI (Apnea-Hypopnea Index). Its system consists of an implant and disposable patch, which stimulate the nerves of the tongue to make it move, preventing airway obstruction.
- Dec 2025Post IPO$26.4M
- Apr 2023Post IPO$3M
- Feb 2020Series C$27.3M
- Nov 2018Series B$17M
#2
Series C · Mons, Wallonia · founded 2004 · 5 employees$49Mraised▾
Provider of predictive maintenance solutions. The product offerings include Wi-care, a condition monitoring, and predictive maintenance management solution and the features of the product include vibration analysis, ultrasound analysis, advanced diagnostics, maintenance analytics, etc. The product is used in industries such as power generation, mining & extraction, transportation, process industries, food & drugs, etc.
- Dec 2025Series C$23.6M
- Sep 2022Series C$49M
- Oct 2017Grant (prize money)$379.1K
- Jan 2017Grant (prize money)$338.8K
#3
Series C · Namur, Wallonia · founded 2013 · 12 employees$23.8Mraised▾
Smart device and app for monitoring and managing sleep data. Its device is attached to the chin while sleeping to record the sleep data. The app tracks the data and analyses the patterns to diagnose obstructive sleep apnea and other conditions. It also provides insights to improve the quality of sleep based on the data.
- Sep 2025Series C$29M
- Nov 2023Series B$5.9M
- Mar 2023Series B$17.9M
- Jul 2022Grant (prize money)$2.1M
#4
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
#5
Acquired · Liege, Wallonia · founded 2014 · 25 employees$34.5Mraised▾
Provider of mesh-enabled smart street lighting solutions. It offers SmartNodes - an intelligent module embedded with specific sensors, processors, and memory. All nodes are interconnected and are capable of communicating with each other thereby forming a mesh network. In addition, the company offers a power unit that enhances the communication between the node & the driver, an access point WiFi to connect third-party devices, a lighting control unit, and a smart noise system.
- Sep 2015Series A$34.5M
#6
Acquired · Wavre, Wallonia · founded 2017 · 4 employees$11.8Mraised▾
Developer of a digital sedation device for managing pain and anxiety. It has developed an evidence-based anxiety and pain self-management module to improve patients' comfort, using virtual reality. Its modules are non-pharmacological, non-invasive, and safe. The patients receive standardized information on the procedure, surgery, or treatment. Also, the patients are trained in evidence-based stress management techniques. The device is plug and play, portable, and lightweight.
- Sep 2020Series A$11.8M
#7
Series C · Mont Saint Guibert, Wallonia · founded 2018 · 17 employees$2.7Mraised▾
Provider of cloud-based 3D printing solutions to develop medical models and surgical guides
- Jul 2022Series C$2.7M
#8
Seed · Ottignies Louvain la Neuve, Wallonia · founded 2018 · 4 employees$2.9Mraised▾
VOCSens provides IoT based gas sensing solutions. Offers EnviCam which is an environmental camera that uses LPWAN technologies and provides indoor & outdoor monitoring solutions and transforms physicochemical parameters into pre-processed data. Provides environmental monitoring and industrial emissions control for the agriculture, food, chemical, wastewater, pharmaceutical & other industries. Partners include Prayon, UCL, Lhoist, Opinum, and more.
- Oct 2021Seed$2.9M
#9
Acquired · Namur, Wallonia · founded 2002 · 37 employees$2.4Mraised▾
Nanocyl develops, manufactures and commercialises multiwall carbon nanotubes (CNT) and its formulated products. Products include multiwall CNT, thermoplastic & elastomers masterbatches, epoxy resin, waterborne & solvent-borne dispersions, and fouling release coatings. Features include electrical conductivity, thermal protection, eco-friendly fouling release, and strength enhancement.
- Mar 2020Grant (prize money)$474.6K
- Jan 2019Grant (prize money)$311.9K
- Sep 2018Grant (prize money)$252.7K
- Jan 2018Grant (prize money)$259.4K
#10
Acquired · Liege, Wallonia · founded 2016 · 34 employees$993.2Kraised▾
Manufacturer of selective laser sintering technology-based industrial 3D printers. It develops selective powder deposition technology-based 3D printers that use multiple materials to develop functional parts of the industrial application. Its compatible materials include PEEK, polymers, metals, and ceramics. It has developed a selective powder deposition system to enable multi-material part production. It also provides customized powder dispensers as one of its products.
#11
Acquired · Mont Saint Guibert, Wallonia · founded 2014 · 11 employees$3.5Mraised▾
Opinum offers a cloud-based platform to analyze and visualize energy and environmental data. The platform is integrated with IoT and big data analytics to centralize and aggregate data from different consumption sources like electricity, gas and water in buildings. Features include centralized energy accounting, utility split billing, remote control of assets and customer engagement platform. The company's clientele includes EOLY, Total, EDF Luminus, and AG Real Estate among others.
- Jul 2017Series A$1.2M
- Sep 2016Series A—
- Oct 2015Seed$1.2M
#12
Acquired · Liege, Wallonia · founded 2015 · 5 employees$1.1Mraised▾
Phasya develops and offers solutions for detecting cognitive and physiological states from eye images. Its core offering comprises of software for detecting drowsiness from eye images, software for measuring ocular parameters related to blinks and saccades from eye images, and hardware+software solution for researchers to measure objectively several ocular parameters as well as the level of drowsiness. Applications are in the areas of safety, driver monitoring, medicine, research, and more. The company is a spin-off of the University of Liege founded in 2015. Also, the company has entered into several contracts with automotive manufacturers as of Jan 2019.
- Jan 2019Seed$1.1M
Funding & investor landscape
Notable founders
Market landscape — 10 sub-themes by coverage
Share of High Tech coverage by sub-theme.
Regulatory-risk over time rising
Funding & growth over time
funding rising · growth rising
How research on Semiconductors is moving in Belgium
A read on the academic research around Semiconductors — which themes are gaining ground, the institutions and researchers driving them, and how the tone is shifting. Based on 615 Belgium-affiliated papers.
- IMEC343
- KU Leuven182
- Ghent University111
- ON Semiconductor22
- UCLouvain20
- Photonics5→20
- Photonic integrated circuit5→15
- Integrated circuit6→16
- Transistor5→9
- Optoelectronics12→15
- Amplifier2→6
- Chip3→5
- Circuit reliability2→4
- Integrated circuit14→15
- Reliability (semiconductor)8→9
- CMOS21
- Reliability (semiconductor)19
- Electronic circuit19
- Three-dimensional integrated circuit18
- Integrated circuit18
Where semiconductors 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.