Scientific research and development: the largest employers in Hainaut
As of 14 Nov 2026, 36 companies in Scientific research and development (NACE 72) in Hainaut report employees in recent accounts (financial years 2023 to 2025). The 10 largest employers account for 962.3 FTE, out of 1,123.6 for all of them; median headcount is 6 FTE. TotalEnergies OneTech Belgium leads with 297.7 FTE (financial year 2025).
Top 36 · Scientific research and development · Hainaut
Ranked by average headcount (FTE) reported in the latest filed accounts (accounts less than 3 years old).
| # | Company | Total assets | Revenue | Equity | FTE | Year |
|---|---|---|---|---|---|---|
| 1 | TotalEnergies OneTech Belgium 7181 Seneffe | €116.7m | €96.0m | €79.8m | 297.7 | 2025 |
| 2 | Baxter R and D Europe 7860 Lessines | €52.7m | €58.8m | €30.5m | 178.3 | 2025 |
| 3 | Multitel 7000 Mons | €7.30m | €2.76m | €3.61m | 85.6 | 2025 |
| 4 | iTeos Belgium 6040 Charleroi | €46.3m | — | −€5.06m | 77.5 | 2025 |
| 5 | Materia Nova 7000 Mons | €31.5m | €2.58m | €5.80m | 75.4 | 2025 |
| 6 | Centre de Recherche en Aeronautique 6041 Charleroi | €17.2m | €3.17m | €6.13m | 72.1 | 2025 |
| 7 | CellCarta Biosciences 6041 Charleroi | €22.4m | — | €1.05m | 62.9 | 2023 |
| 8 | Centre d'Excellence en Technologies de l'Information et de la Communication 6041 Charleroi | €6.29m | 729,485 € | €2.39m | 55.2 | 2025 |
| 9 | Battlekart Europe 7711 Mouscron | €11.7m | €18.1m | €7.14m | 30.2 | 2025 |
| 10 | Centre de Recherches de l'Industrie Belge de la Ceramique 7000 Mons | €9.66m | €1.45m | €7.48m | 27.4 | 2025 |
| 11 | ImmunXperts 6041 Charleroi | €9.58m | — | −€1.60m | 26.7 | 2024 |
| 12 | Euro-Multitel 7000 Mons | €5.04m | — | €1.20m | 20.2 | 2025 |
| 13 | Endo Tools Therapeutics 6041 Charleroi | €5.11m | — | −€15.1m | 19.4 | 2025 |
| 14 | Ipratech 6041 Charleroi | €4.29m | — | €1.56m | 15.6 | 2025 |
| 15 | Santero Therapeutics 6041 Charleroi | €4.15m | — | €3.63m | 11.9 | 2025 |
| 16 | Centre de Recherche,d'Etude et de Formation Continue de la HELHA 7000 Mons | €2.52m | €1.36m | €1.19m | 8.6 | 2025 |
| 17 | Bioxodes 6041 Charleroi | €7.68m | — | −€1.66m | 7.7 | 2025 |
| 18 | Cancer State Therapeutics 6041 Charleroi | €3.96m | — | €3.74m | 6.6 | 2025 |
| 19 | Centre de Recherche et de Developpement de l'Ecam 7181 Seneffe | €1.64m | — | 412,931 € | 5.4 | 2025 |
| 20 | Inhatarget Therapeutics 6041 Charleroi | €2.16m | — | €1.57m | 5.2 | 2025 |
| 21 | Minoryx Therapeutics BE 6041 Charleroi | €3.87m | — | €2.55m | 4.8 | 2025 |
| 22 | XomeXBio 6041 Charleroi | €3.50m | — | €1.06m | 4.0 | 2025 |
| 23 | Brussels South Charleroi BioPark Dev 6041 Charleroi | 668,787 € | — | 327,454 € | 3.8 | 2025 |
| 24 | ConvEyXo 6041 Charleroi | €10.3m | — | €1.39m | 3.1 | 2025 |
| 25 | AgroPELLETS 7600 Péruwelz | 441,991 € | — | 14,406 € | 3.1 | 2025 |
| 26 | Syscade 7503 Tournai | €2.26m | — | €1.80m | 2.8 | 2025 |
| 27 | Stellaris 6041 Charleroi | €3.53m | — | €3.32m | 2.0 | 2025 |
| 28 | DNAVision 6041 Charleroi | 27,822 € | — | −879,841 € | 2.0 | 2025 |
| 29 | Altea Energie 7332 Saint-Ghislain | 257,685 € | — | 107,594 € | 1.7 | 2025 |
| 30 | sil'innov 6220 Fleurus | 484,486 € | — | −677,126 € | 1.3 | 2025 |
| 31 | Nathola 6041 Charleroi | 256,099 € | — | 5,084 € | 1.3 | 2025 |
| 32 | MDB Tribology 6230 Pont-à-Celles | 572,866 € | — | 508,783 € | 1.0 | 2025 |
| 33 | Spectralys Biotech 6041 Charleroi | 444,695 € | — | 313,008 € | 1.0 | 2025 |
| 34 | Railroad Therapeutics 6041 Charleroi | 619,622 € | — | 437,751 € | 1.0 | 2025 |
| 35 | Frid Mind Technologies 6043 Charleroi | €1.15m | — | 817,176 € | 0.8 | 2025 |
| 36 | Elkedonia Belgium 6041 Charleroi | 228,425 € | — | −535,722 € | 0.3 | 2025 |
Ranking based on each company's own annual accounts (statutory, not consolidated): a subsidiary and its parent appear separately, and the ranking differs from lists based on consolidated group accounts. Headcount reported by the company for all its sites: the jobs may be located elsewhere.
“—”: not published. Small companies (micro and abridged accounts) do not have to publish their revenue.
Scientific research and development across Belgium → All sectors · Hainaut →
Other sectors · Hainaut
- 01 Crop and animal production, hunting and related service activities202
- 02 Forestry and logging21
- 08 Other mining and quarrying15
- 10 Manufacture of food products290
- 11 Manufacture of beverages27
- 13 Manufacture of textiles38
- 14 Manufacture of wearing apparel10
- 16 Manufacture of wood and of products of wood and cork, except furniture; manufacture of articles of straw and plaiting materials46
- 17 Manufacture of paper and paper products19
- 18 Printing and reproduction of recorded media48
- 20 Manufacture of chemicals and chemical products68
- 21 Manufacture of basic pharmaceutical products and pharmaceutical preparations17
- 22 Manufacture of rubber and plastic products50
- 23 Manufacture of other non-metallic mineral products103
- 24 Manufacture of basic metals37
- 25 Manufacture of fabricated metal products, except machinery and equipment271
- 26 Manufacture of computer, electronic and optical products14
- 27 Manufacture of electrical equipment18
- 28 Manufacture of machinery and equipment n.e.c.58
- 29 Manufacture of motor vehicles, trailers and semi-trailers13
- 31 Manufacture of furniture35
- 32 Other manufacturing49
- 33 Repair, maintenance and installation of machinery and equipment93
- 35 Electricity, gas, steam and air conditioning supply12
- 37 Sewerage11
- 38 Waste collection, recovery and disposal activities71
- 41 Construction of residential and non-residential buildings508
- 42 Civil engineering76
- 43 Specialised construction activities1,384
- 46 Wholesale trade913
- 47 Retail trade2,003
- 49 Land transport and transport via pipelines321
- 52 Warehousing, storage and support activities for transportation74
- 53 Postal and courier activities21
- 55 Accommodation77
- 56 Food and beverage service activities1,122
- 58 Publishing activities15
- 59 Motion picture, video and television programme production, sound recording and music publishing activities21
- 61 Telecommunication13
- 62 Computer programming, consultancy and related activities179
- 63 Computing infrastructure, data processing, hosting and other information service activities17
- 64 Financial service activities, except insurance and pension funding138
- 66 Activities auxiliary to financial services and insurance activities343
- 68 Real estate activities351
- 69 Legal and accounting activities522
- 70 Activities of head offices and management consultancy246
- 71 Architectural and engineering activities; technical testing and analysis186
- 73 Activities of advertising, market research and public relations69
- 74 Other professional, scientific and technical activities29
- 75 Veterinary activities54
- 77 Rental and leasing activities44
- 78 Employment activities29
- 79 Travel agency, tour operator and other reservation service and related activities51
- 80 Investigation and security activities13
- 81 Services to buildings and landscape activities216
- 82 Office administrative, office support and other business support activities83
- 85 Education199
- 86 Human health activities559
- 87 Residential care activities269
- 88 Social work activities without accommodation130
- 90 Arts creation and performing arts activities41
- 91 Libraries, archives, museums and other cultural activities14
- 92 Gambling and betting activities12
- 93 Sports activities and amusement and recreation activities128
- 94 Activities of membership organisations60
- 95 Repair and maintenance of computers, personal and household goods, and motor vehicles and motorcycles153
- 96 Personal service activities265
Municipalities with the most companies in the sector · Hainaut
- 6041 Charleroi (Gosselies)33
- 7000 Mons6
- 7911 Frasnes-lez-Anvaing (Buissenal, Frasnes-Lez-Buissenal, Hacquegnies, …)4
- 7181 Seneffe (Arquennes, Familleureux, Feluy, …)3
- 7503 Tournai (Froyennes)3
- 7850 Enghien (Marcq, Petit-Enghien)3
- 6043 Charleroi (Ransart)2
- 6110 Montigny-le-Tilleul2
- 6534 Thuin (Gozée)2
- 7050 Jurbise (Erbaut, Erbisoeul, Herchies, …)2
- 7800 Ath (Lanquesaint)2
- 7822 Ath (Ghislenghien, Isières, Meslin-L'evêque)2
Frequently asked questions
Which is the largest employer in Scientific research and development in Hainaut?
Among companies, TotalEnergies OneTech Belgium, with 297.7 full-time equivalents reported (financial year 2025).
Are all the jobs located in the area?
Not necessarily: headcount is reported by the company for all its sites, and the company is ranked by the address of its registered office. 36 out of 91 companies in the sector report employees there.
Why does this ranking differ from other lists?
It uses each company's annual accounts as filed with the National Bank, not consolidated group accounts. A holding, a subsidiary or a purchasing entity can therefore appear separately. Only companies whose latest accounts are less than 3 years old are ranked.
Analyse companies · Hainaut
Filter these companies by size, soundness and trend, follow them and get an alert when their accounts or publications change.
Open the full file →Active companies (legal entities) that have filed at least one set of annual accounts, based on the Crossroads Bank for Enterprises and the National Bank of Belgium. The sector is the main activity in the register; the municipality is that of the registered office. Data updated on 14 Nov 2026.