Other professional, scientific and technical activities: the largest employers in Wallonia
As of 14 Nov 2026, 118 companies in Other professional, scientific and technical activities (NACE 74) in Wallonia report employees in recent accounts (financial years 2023 to 2026). The 10 largest employers account for 145.2 FTE, out of 379.2 for all of them; median headcount is 1.6 FTE. Service de Traduction et d'Interprétariat en milieu Social Wallon asbl leads with 38.1 FTE (financial year 2025).
Top 50 · Other professional, scientific and technical activities · Wallonia
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 | Service de Traduction et d'Interprétariat en milieu Social Wallon asbl 5000 Namur | 756,404 € | 295,427 € | 181,604 € | 38.1 | 2025 |
| 2 | Stoquart 7000 Mons | €1.87m | — | 359,453 € | 16.9 | 2025 |
| 3 | Bernard Henreaux, Photographe 1460 Ittre | 982,998 € | — | −256,217 € | 15.8 | 2023 |
| 4 | S-Pace 1435 Mont-Saint-Guibert | €2.94m | — | €1.93m | 13.7 | 2025 |
| 5 | Belcolor Photo A. Baré 4000 Liège | €1.20m | €1.25m | 959,223 € | 11.6 | 2025 |
| 6 | MSBD 5660 Couvin | 759,920 € | — | −188,448 € | 10.8 | 2024 |
| 7 | Wind'O 1435 Mont-Saint-Guibert | €2.17m | — | €1.16m | 10.3 | 2025 |
| 8 | Service d'Interprétation des Sourds de Wallonie 5000 Namur | 371,196 € | — | 226,331 € | 9.6 | 2025 |
| 9 | Move.COM 1490 Court-Saint-Étienne | 361,826 € | — | 108,214 € | 9.3 | 2025 |
| 10 | Imagination 7522 Tournai | €3.31m | — | €1.51m | 9.1 | 2025 |
| 11 | Walterre 7110 La Louvière | €1.22m | — | −131,954 € | 8.7 | 2025 |
| 12 | Filimage 4500 Huy | 758,486 € | — | 400,753 € | 7.1 | 2025 |
| 13 | Trans4Benelux 7700 Mouscron | 66,857 € | — | −27,649 € | 7.0 | 2023 |
| 14 | Apcollection 7110 La Louvière | 653,391 € | — | 89,148 € | 6.6 | 2025 |
| 15 | Advanced Engineering Center 6000 Charleroi | €11.8m | — | €5.53m | 6.5 | 2025 |
| 16 | Break The Grid 4020 Liège | 505,758 € | — | 202,951 € | 6.4 | 2025 |
| 17 | 4th Avenue 7000 Mons | 464,701 € | — | 5,730 € | 6.2 | 2023 |
| 18 | Dicton 7700 Mouscron | €2.25m | — | 634,040 € | 6.2 | 2025 |
| 19 | Equestrian Technology 1360 Perwez | €2.31m | — | 432,965 € | 5.4 | 2025 |
| 20 | W H Merchandising 4030 Liège | 516,419 € | — | 117,788 € | 5.3 | 2025 |
| 21 | Onfocus 1341 Ottignies-Louvain-la-Neuve | 325,947 € | — | 44,030 € | 5.1 | 2025 |
| 22 | Confederation Wallonie - Bruxelles du Cheval 5590 Ciney | 455,352 € | — | 327,682 € | 5.0 | 2025 |
| 23 | Christian Remy Expertises Medicales 4000 Liège | 369,286 € | 313,876 € | 146,424 € | 5.0 | 2025 |
| 24 | Building Words 5020 Namur | 484,396 € | — | 247,587 € | 4.9 | 2025 |
| 25 | DM Industrie 4140 Sprimont | €2.67m | — | 207,948 € | 4.8 | 2025 |
| 26 | Biometh Quality Product 6240 Farciennes | €13.2m | — | €1.83m | 4.7 | 2024 |
| 27 | Right INK 7000 Mons | 218,378 € | — | 65,998 € | 4.6 | 2023 |
| 28 | Production 1310 La Hulpe | 579,319 € | — | 490,281 € | 4.4 | 2025 |
| 29 | Hangar Studio 1420 Braine-l'Alleud | €1.56m | — | 2,000 € | 4.4 | 2025 |
| 30 | Atelier du Tri 5580 Rochefort | €1.57m | — | €1.41m | 4.3 | 2025 |
| 31 | Le Studio 17 Photographie 4040 Herstal | 610,494 € | — | 406,752 € | 4.0 | 2025 |
| 32 | De² Geotechnics 6250 Aiseau-Presles | 226,414 € | — | 108,487 € | 3.9 | 2025 |
| 33 | New Radiosoc 1330 Rixensart | €1.28m | — | €1.02m | 3.9 | 2025 |
| 34 | Between Horses 1410 Waterloo | 154,743 € | — | −248,683 € | 3.6 | 2025 |
| 35 | Vertical Compute 1348 Ottignies-Louvain-la-Neuve | €18.1m | — | €14.5m | 3.5 | 2025 |
| 36 | EN'Hestia 5032 Gembloux | 444,633 € | 78,761 € | 21,661 € | 3.4 | 2025 |
| 37 | Paper Duck 4400 Flémalle | 686,373 € | — | 157,393 € | 3.2 | 2025 |
| 38 | Backstage Design & Print 1320 Beauvechain | €1.33m | — | 218,898 € | 3.2 | 2025 |
| 39 | JCW Lettrage 4651 Herve | 610,565 € | — | 103,968 € | 3.1 | 2025 |
| 40 | Aprilettres 4800 Verviers | 984,676 € | — | 234,020 € | 3.0 | 2025 |
| 41 | Sdev-Events Decoration 1370 Jodoigne | 568,226 € | — | 84,105 € | 3.0 | 2025 |
| 42 | Pierre Papier Ciseaux 1380 Lasne | 44,470 € | — | −184 € | 2.9 | 2025 |
| 43 | Mea Adminis 5500 Dinant | 320,037 € | 295,096 € | 40,822 € | 2.9 | 2025 |
| 44 | Octopus Creative Communication 5300 Andenne | 205,882 € | — | 79,425 € | 2.6 | 2025 |
| 45 | Novasys 5310 Éghezée | 180,778 € | — | 88,762 € | 2.5 | 2025 |
| 46 | Acclaro Localization & Technology 1300 Wavre | €23.7m | €22.3m | €5.89m | 2.3 | 2024 |
| 47 | Braave 6210 Les Bons Villers | 89,085 € | — | 43,719 € | 2.1 | 2025 |
| 48 | Cabinet Medical d'Expertise Willems 4190 Ferrières | 345,830 € | — | 228,459 € | 2.0 | 2025 |
| 49 | Savoir Faire Digital 4720 Kelmis | 456,249 € | — | 99,279 € | 2.0 | 2025 |
| 50 | CTRLP 6180 Courcelles | 244,100 € | — | 52,452 € | 2.0 | 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.
Other professional, scientific and technical activities across Belgium → All sectors · Wallonia →
Other sectors · Wallonia
- 01 Crop and animal production, hunting and related service activities780
- 02 Forestry and logging194
- 08 Other mining and quarrying77
- 10 Manufacture of food products965
- 11 Manufacture of beverages98
- 13 Manufacture of textiles80
- 14 Manufacture of wearing apparel32
- 16 Manufacture of wood and of products of wood and cork, except furniture; manufacture of articles of straw and plaiting materials221
- 17 Manufacture of paper and paper products44
- 18 Printing and reproduction of recorded media183
- 20 Manufacture of chemicals and chemical products154
- 21 Manufacture of basic pharmaceutical products and pharmaceutical preparations70
- 22 Manufacture of rubber and plastic products140
- 23 Manufacture of other non-metallic mineral products267
- 24 Manufacture of basic metals97
- 25 Manufacture of fabricated metal products, except machinery and equipment863
- 26 Manufacture of computer, electronic and optical products110
- 27 Manufacture of electrical equipment94
- 28 Manufacture of machinery and equipment n.e.c.245
- 29 Manufacture of motor vehicles, trailers and semi-trailers62
- 30 Manufacture of other transport equipment32
- 31 Manufacture of furniture147
- 32 Other manufacturing184
- 33 Repair, maintenance and installation of machinery and equipment290
- 35 Electricity, gas, steam and air conditioning supply55
- 37 Sewerage34
- 38 Waste collection, recovery and disposal activities185
- 39 Remediation activities and other waste management service activities12
- 41 Construction of residential and non-residential buildings1,635
- 42 Civil engineering231
- 43 Specialised construction activities4,772
- 46 Wholesale trade3,106
- 47 Retail trade6,426
- 49 Land transport and transport via pipelines954
- 50 Water transport13
- 52 Warehousing, storage and support activities for transportation248
- 53 Postal and courier activities44
- 55 Accommodation497
- 56 Food and beverage service activities3,655
- 58 Publishing activities116
- 59 Motion picture, video and television programme production, sound recording and music publishing activities117
- 60 Programming, broadcasting, news agency and other content distribution activities19
- 61 Telecommunication45
- 62 Computer programming, consultancy and related activities855
- 63 Computing infrastructure, data processing, hosting and other information service activities56
- 64 Financial service activities, except insurance and pension funding460
- 65 Insurance, reinsurance and pension funding, except compulsory social security30
- 66 Activities auxiliary to financial services and insurance activities976
- 68 Real estate activities1,204
- 69 Legal and accounting activities1,756
- 70 Activities of head offices and management consultancy1,072
- 71 Architectural and engineering activities; technical testing and analysis708
- 72 Scientific research and development141
- 73 Activities of advertising, market research and public relations285
- 75 Veterinary activities173
- 77 Rental and leasing activities148
- 78 Employment activities145
- 79 Travel agency, tour operator and other reservation service and related activities124
- 80 Investigation and security activities39
- 81 Services to buildings and landscape activities738
- 82 Office administrative, office support and other business support activities285
- 84 Public administration and defence; compulsory social security25
- 85 Education560
- 86 Human health activities1,816
- 87 Residential care activities621
- 88 Social work activities without accommodation415
- 90 Arts creation and performing arts activities144
- 91 Libraries, archives, museums and other cultural activities63
- 92 Gambling and betting activities27
- 93 Sports activities and amusement and recreation activities459
- 94 Activities of membership organisations223
- 95 Repair and maintenance of computers, personal and household goods, and motor vehicles and motorcycles524
- 96 Personal service activities823
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 employer in Other professional, scientific and technical activities in Wallonia?
Among companies, Service de Traduction et d'Interprétariat en milieu Social Wallon asbl, with 38.1 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. 118 out of 1,235 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 · Wallonia
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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.