Ranking · Wallonia · NACE 74
Other professional, scientific and technical activities: the largest companies in Wallonia
As of 12 Nov 2026, 1,210 companies in Other professional, scientific and technical activities (NACE 74) in Wallonia publish total assets in recent accounts (financial years 2023 to 2026). The top 10 account for €136.2m, out of €396.0m for all of them; median total assets are 89,446 €. Estor-Lux II leads with €42.0m (financial year 2025).
Top 50 · Other professional, scientific and technical activities · Wallonia
Ranked by total assets in the latest filed accounts. This is a size criterion, not an assessment.
| # | Company | Total assets | Revenue | Equity | FTE | Year |
|---|---|---|---|---|---|---|
| 1 | Estor-Lux II 4000 Liège | €42.0m | — | €13.7m | — | 2025 |
| 2 | Acclaro Localization & Technology 1300 Wavre | €23.7m | €22.3m | €5.89m | 2.3 | 2024 |
| 3 | Vertical Compute 1348 Ottignies-Louvain-la-Neuve | €18.1m | — | €14.5m | 3.5 | 2025 |
| 4 | Biometh Quality Product 6240 Farciennes | €13.2m | — | €1.83m | 4.7 | 2024 |
| 5 | Advanced Engineering Center 6000 Charleroi | €11.8m | — | €5.53m | 6.5 | 2025 |
| 6 | Estor-LUX 4000 Liège | €8.11m | — | €4.94m | — | 2025 |
| 7 | Advento Management 1330 Rixensart | €7.59m | — | €6.00m | — | 2025 |
| 8 | Elawan Energy Merbes 5101 Namur | €4.23m | — | 42,819 € | — | 2025 |
| 9 | Link Office 4821 Dison | €3.77m | — | €3.50m | — | 2024 |
| 10 | Route 40 5522 Onhaye | €3.67m | — | 197,735 € | — | 2025 |
| 11 | B.O. House 1428 Braine-l'Alleud | €3.37m | — | €1.77m | — | 2025 |
| 12 | C.R.M. 4600 Visé | €3.34m | — | 924,838 € | — | 2025 |
| 13 | Imagination 7522 Tournai | €3.31m | — | €1.51m | 9.1 | 2025 |
| 14 | Optimade 1390 Grez-Doiceau | €3.13m | — | €2.04m | — | 2025 |
| 15 | 254Forest 1490 Court-Saint-Étienne | €3.08m | — | €2.02m | — | 2025 |
| 16 | S-Pace 1435 Mont-Saint-Guibert | €2.94m | — | €1.93m | 13.7 | 2025 |
| 17 | Allaer gestion 4530 Villers-le-Bouillet | €2.79m | — | €2.78m | — | 2025 |
| 18 | Dbdeco 1300 Wavre | €2.70m | — | €1.14m | 1.8 | 2025 |
| 19 | DM Industrie 4140 Sprimont | €2.67m | — | 207,948 € | 4.8 | 2025 |
| 20 | Artemis Belgium 7870 Lens (Hainaut) | €2.52m | — | €1.19m | — | 2025 |
| 21 | Deco-Tech 1461 Ittre | €2.52m | — | €2.03m | 1.0 | 2025 |
| 22 | Aquilius 1360 Perwez | €2.35m | — | €1.47m | 2.0 | 2025 |
| 23 | Equestrian Technology 1360 Perwez | €2.31m | — | 432,965 € | 5.4 | 2025 |
| 24 | Dicton 7700 Mouscron | €2.25m | — | 634,040 € | 6.2 | 2025 |
| 25 | Wind'O 1435 Mont-Saint-Guibert | €2.17m | — | €1.16m | 10.3 | 2025 |
| 26 | Bridge2Health 4000 Liège | €2.11m | — | €1.46m | — | 2025 |
| 27 | TRBL MNGT 7780 Comines-Warneton | €2.06m | — | 618,894 € | — | 2025 |
| 28 | Home EOS 6240 Farciennes | €1.99m | — | −€1.28m | 1.8 | 2023 |
| 29 | Bastex 4624 Fléron | €1.98m | — | €1.18m | 1.8 | 2025 |
| 30 | DGS Consult 7191 Écaussinnes | €1.95m | — | €1.28m | — | 2025 |
| 31 | JPM Osteopathie 6462 Chimay | €1.88m | — | €1.05m | — | 2025 |
| 32 | Stoquart 7000 Mons | €1.87m | — | 359,453 € | 16.9 | 2025 |
| 33 | Eubelro 6120 Ham-sur-Heure-Nalinnes | €1.84m | — | 601,277 € | — | 2025 |
| 34 | Brabant-Invest 1480 Tubize | €1.81m | — | €1.03m | — | 2025 |
| 35 | Puissance 3 4690 Bassenge | €1.70m | — | 975,144 € | 1.0 | 2024 |
| 36 | MOTH 1410 Waterloo | €1.66m | — | €1.21m | — | 2025 |
| 37 | M.C.S.D. 7500 Tournai | €1.61m | — | €1.60m | — | 2025 |
| 38 | ANT-Productions 7880 Flobecq | €1.60m | — | €1.33m | — | 2025 |
| 39 | Qualiacom 1410 Waterloo | €1.60m | — | 406,331 € | 2.0 | 2025 |
| 40 | Atelier du Tri 5580 Rochefort | €1.57m | — | €1.41m | 4.3 | 2025 |
| 41 | Hangar Studio 1420 Braine-l'Alleud | €1.56m | — | 2,000 € | 4.4 | 2025 |
| 42 | Bef4U 5140 Sombreffe | €1.44m | — | 753,542 € | — | 2025 |
| 43 | Geordel 4910 Theux | €1.33m | — | 182,869 € | — | 2025 |
| 44 | Backstage Design & Print 1320 Beauvechain | €1.33m | — | 218,898 € | 3.2 | 2025 |
| 45 | Medleg 6220 Fleurus | €1.30m | — | €1.19m | — | 2025 |
| 46 | New Radiosoc 1330 Rixensart | €1.28m | — | €1.02m | 3.9 | 2025 |
| 47 | Walterre 7110 La Louvière | €1.22m | — | −131,954 € | 8.7 | 2025 |
| 48 | Farmalis 5330 Assesse | €1.22m | — | −21,721 € | — | 2025 |
| 49 | BWAT 1370 Jodoigne | €1.21m | — | 833,658 € | — | 2025 |
| 50 | Belcolor Photo A. Baré 4000 Liège | €1.20m | €1.25m | 959,223 € | 11.6 | 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.
“—”: not published. Small companies (micro and abridged accounts) do not have to publish their revenue.
Other professional, scientific and technical activities across Belgium → All sectors · Wallonia →
Other sectors · Wallonia
- 01 Crop and animal production, hunting and related service activities2,551
- 02 Forestry and logging541
- 03 Fishing and aquaculture31
- 08 Other mining and quarrying121
- 09 Mining support service activities17
- 10 Manufacture of food products1,476
- 11 Manufacture of beverages275
- 13 Manufacture of textiles155
- 14 Manufacture of wearing apparel101
- 15 Manufacture of leather and related products of other materials18
- 16 Manufacture of wood and of products of wood and cork, except furniture; manufacture of articles of straw and plaiting materials442
- 17 Manufacture of paper and paper products57
- 18 Printing and reproduction of recorded media531
- 20 Manufacture of chemicals and chemical products240
- 21 Manufacture of basic pharmaceutical products and pharmaceutical preparations178
- 22 Manufacture of rubber and plastic products196
- 23 Manufacture of other non-metallic mineral products441
- 24 Manufacture of basic metals140
- 25 Manufacture of fabricated metal products, except machinery and equipment1,528
- 26 Manufacture of computer, electronic and optical products210
- 27 Manufacture of electrical equipment185
- 28 Manufacture of machinery and equipment n.e.c.379
- 29 Manufacture of motor vehicles, trailers and semi-trailers114
- 30 Manufacture of other transport equipment56
- 31 Manufacture of furniture279
- 32 Other manufacturing409
- 33 Repair, maintenance and installation of machinery and equipment653
- 35 Electricity, gas, steam and air conditioning supply275
- 36 Water collection, treatment and supply19
- 37 Sewerage67
- 38 Waste collection, recovery and disposal activities297
- 39 Remediation activities and other waste management service activities29
- 41 Construction of residential and non-residential buildings4,194
- 42 Civil engineering476
- 43 Specialised construction activities12,036
- 46 Wholesale trade8,103
- 47 Retail trade12,956
- 49 Land transport and transport via pipelines1,820
- 50 Water transport41
- 51 Air transport53
- 52 Warehousing, storage and support activities for transportation567
- 53 Postal and courier activities126
- 55 Accommodation1,322
- 56 Food and beverage service activities6,704
- 58 Publishing activities410
- 59 Motion picture, video and television programme production, sound recording and music publishing activities596
- 60 Programming, broadcasting, news agency and other content distribution activities69
- 61 Telecommunication130
- 62 Computer programming, consultancy and related activities5,398
- 63 Computing infrastructure, data processing, hosting and other information service activities468
- 64 Financial service activities, except insurance and pension funding3,809
- 65 Insurance, reinsurance and pension funding, except compulsory social security111
- 66 Activities auxiliary to financial services and insurance activities2,333
- 68 Real estate activities12,716
- 69 Legal and accounting activities5,344
- 70 Activities of head offices and management consultancy12,304
- 71 Architectural and engineering activities; technical testing and analysis3,982
- 72 Scientific research and development396
- 73 Activities of advertising, market research and public relations2,472
- 75 Veterinary activities727
- 77 Rental and leasing activities793
- 78 Employment activities299
- 79 Travel agency, tour operator and other reservation service and related activities262
- 80 Investigation and security activities133
- 81 Services to buildings and landscape activities1,907
- 82 Office administrative, office support and other business support activities2,357
- 84 Public administration and defence; compulsory social security39
- 85 Education1,498
- 86 Human health activities14,910
- 87 Residential care activities736
- 88 Social work activities without accommodation561
- 90 Arts creation and performing arts activities659
- 91 Libraries, archives, museums and other cultural activities85
- 92 Gambling and betting activities46
- 93 Sports activities and amusement and recreation activities1,303
- 94 Activities of membership organisations326
- 95 Repair and maintenance of computers, personal and household goods, and motor vehicles and motorcycles1,291
- 96 Personal service activities1,967
Municipalities with the most companies in the sector · Wallonia
- 4000 Liège (Glain, Rocourt)51
- 1410 Waterloo34
- 1300 Wavre (Limal)27
- 1380 Lasne (Couture-Saint-Germain, Lasne-Chapelle-Saint-Lambert, Maransart, …)25
- 1420 Braine-l'Alleud20
- 1325 Chaumont-Gistoux (Bonlez, Corroy-Le-Grand, Dion-Valmont, …)19
- 7000 Mons18
- 7500 Tournai (Ere, Saint-Maur)18
- 7700 Mouscron (Luingne)16
- 1390 Grez-Doiceau (Archennes, Biez, Bossut-Gottechain, …)13
- 1435 Mont-Saint-Guibert (Corbais, Hévillers)13
- 4020 Liège (Bressoux, Jupille-Sur-Meuse, Wandre)13
Frequently asked questions
Which is the largest company in Other professional, scientific and technical activities in Wallonia?
By total assets, it is Estor-Lux II (€42.0m, financial year 2025).
How many companies in Other professional, scientific and technical activities in Wallonia are ranked?
1,210 out of 1,236 active companies in the sector with their registered office in the area: those whose latest accounts are less than 3 years old.
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.
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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 12 Nov 2026.