Architectural and engineering activities; technical testing and analysis: the largest employers in Flemish Brabant
As of 12 Nov 2026, 265 companies in Architectural and engineering activities; technical testing and analysis (NACE 71) in Flemish Brabant report employees in recent accounts (financial years 2023 to 2026). The 10 largest employers account for 3,760.8 FTE, out of 6,607.6 for all of them; median headcount is 3 FTE. Vincotte leads with 973 FTE (financial year 2025).
Top 50 · Architectural and engineering activities; technical testing and analysis · Flemish Brabant
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 | Vincotte 1800 Vilvoorde | €55.6m | €136.1m | €21.7m | 973.0 | 2025 |
| 2 | Akkodis Belgium 1702 Dilbeek | €22.8m | €99.0m | €2.55m | 676.6 | 2025 |
| 3 | Siemens Industry Software 3001 Leuven | €482.8m | €353.6m | €205.5m | 486.8 | 2025 |
| 4 | Laboratoire belge de l'Industrie Electrique 1630 Linkebeek | €80.2m | €106.1m | €21.8m | 393.5 | 2025 |
| 5 | Vinçotte 1800 Vilvoorde | €39.3m | €76.2m | €25.1m | 317.4 | 2025 |
| 6 | Etex Services 1880 Kapelle-op-den-Bos | €61.2m | €93.1m | €30.8m | 209.7 | 2025 |
| 7 | Nelson Labs 3001 Leuven | €769.0m | €41.3m | €595.3m | 202.5 | 2025 |
| 8 | Algemene Certificaten voor Elektriciteit & Gas 1853 Grimbergen | €9.47m | €26.7m | €1.12m | 198.3 | 2025 |
| 9 | Camco Technologies 3001 Leuven | €40.2m | €37.4m | €5.84m | 170.4 | 2025 |
| 10 | Bodemkundige Dienst van Belgie - Service Pedologique de Belgique 3001 Leuven | €17.8m | €12.5m | €14.9m | 132.6 | 2025 |
| 11 | Icos Vision Systems 3001 Leuven | €47.5m | €36.6m | €36.3m | 130.0 | 2025 |
| 12 | Desmet Belgium 1831 Machelen (Brab.) | €183.5m | €126.8m | €53.5m | 129.0 | 2024 |
| 13 | Septentrio 3001 Leuven | €89.9m | €74.9m | €76.7m | 120.8 | 2025 |
| 14 | NXP Semiconductors Belgium 3001 Leuven | €15.8m | €25.7m | €4.37m | 112.2 | 2025 |
| 15 | Tauw Belgique 3018 Leuven | €13.6m | €17.1m | €3.07m | 108.9 | 2025 |
| 16 | ICsense 3001 Leuven | €20.1m | €25.7m | €13.1m | 104.0 | 2026 |
| 17 | ASM Belgium 3001 Leuven | €43.8m | €33.5m | €32.9m | 92.3 | 2025 |
| 18 | Space Applications Services 1932 Zaventem | €36.8m | €22.2m | €12.5m | 91.3 | 2025 |
| 19 | Centrum voor Technische Automobielinspectie 3001 Leuven | €14.3m | €12.1m | €9.56m | 80.5 | 2025 |
| 20 | TÜV Austria Belgium 3110 Rotselaar | €10.8m | €15.2m | €5.83m | 75.4 | 2025 |
| 21 | Macadam Belgium 1800 Vilvoorde | €3.30m | — | 948,419 € | 73.3 | 2025 |
| 22 | Exosens Imaging Belgium 3001 Leuven | €39.1m | €29.7m | €5.69m | 67.7 | 2025 |
| 23 | VeroTech 3000 Leuven | €3.92m | — | €2.22m | 65.0 | 2025 |
| 24 | Comate 3000 Leuven | €7.44m | €7.87m | 743,133 € | 60.2 | 2025 |
| 25 | COPRO - Organisme Impartial de contrôle de Produits pour la Construction 1731 Asse | €19.8m | €10.4m | €16.9m | 58.1 | 2025 |
| 26 | Leuven Air Bearings 3460 Bekkevoort | €12.0m | — | €1.94m | 54.7 | 2025 |
| 27 | Aecom Belgium 3000 Leuven | €11.1m | €30.6m | €3.47m | 53.8 | 2025 |
| 28 | Sterigenics 3018 Leuven | €594.8m | — | €469.5m | 38.1 | 2025 |
| 29 | Polytek 3300 Tienen | €2.70m | — | 390,091 € | 37.5 | 2025 |
| 30 | HYDROscan 3010 Leuven | €3.30m | — | €1.27m | 36.4 | 2025 |
| 31 | Transport & Mobility Leuven 3010 Leuven | €5.88m | — | €3.48m | 29.2 | 2025 |
| 32 | J. Van Hemelen, Keuringsorganisme - J. Van Hemelen Organisme de Contrôle 1640 Sint-Genesius-Rode | €5.43m | — | €4.78m | 29.1 | 2025 |
| 33 | Waterleau Technics 3150 Haacht | €2.89m | — | €1.16m | 29.0 | 2025 |
| 34 | D+A Consult 1500 Halle | €2.11m | — | €1.39m | 28.4 | 2025 |
| 35 | 2B-Safe 3380 Glabbeek | €2.77m | — | €1.46m | 28.3 | 2025 |
| 36 | CRC Engineering 1851 Grimbergen | €5.51m | — | €4.17m | 26.2 | 2025 |
| 37 | V.M.I. Engineering and Contracting 3320 Hoegaarden | €10.3m | — | €3.05m | 25.3 | 2025 |
| 38 | TÜV SÜD Benelux 3190 Boortmeerbeek | 937,186 € | — | −€1.96m | 24.7 | 2025 |
| 39 | Veolia Water Technologies Belgium 3300 Tienen | €32.2m | €19.9m | €1.77m | 23.9 | 2024 |
| 40 | Cyient Semiconductors 3001 Leuven | €7.13m | €7.13m | −€1.53m | 23.4 | 2026 |
| 41 | XenomatiX 3001 Leuven | €29.6m | — | €22.5m | 23.2 | 2025 |
| 42 | Archimedes 3140 Keerbergen | €3.58m | — | €2.26m | 22.7 | 2025 |
| 43 | reMYND 3001 Leuven | €3.15m | — | −83,639 € | 21.1 | 2025 |
| 44 | Rapidfit 3001 Leuven | €4.76m | €4.93m | −€10.7m | 20.3 | 2025 |
| 45 | Ronoh 3190 Boortmeerbeek | €2.58m | — | €1.27m | 19.9 | 2025 |
| 46 | Abesco 3380 Glabbeek | €1.68m | — | 770,687 € | 19.1 | 2025 |
| 47 | Euro-Fitting Management 1930 Zaventem | €4.38m | €5.20m | €1.70m | 19.1 | 2025 |
| 48 | STUDIEBUREAU Patrick CASIER 3000 Leuven | €1.77m | — | €1.21m | 18.9 | 2025 |
| 49 | ACEG 1853 Grimbergen | €15.7m | €38.5m | €1.37m | 18.0 | 2025 |
| 50 | Tree Energy Solutions Belgium 1930 Zaventem | €8.56m | — | −€13.9m | 17.6 | 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. 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.
Architectural and engineering activities; technical testing and analysis across Belgium → All sectors · Flemish Brabant →
Other sectors · Flemish Brabant
- 01 Crop and animal production, hunting and related service activities186
- 10 Manufacture of food products245
- 11 Manufacture of beverages30
- 13 Manufacture of textiles16
- 16 Manufacture of wood and of products of wood and cork, except furniture; manufacture of articles of straw and plaiting materials40
- 17 Manufacture of paper and paper products24
- 18 Printing and reproduction of recorded media63
- 20 Manufacture of chemicals and chemical products29
- 22 Manufacture of rubber and plastic products42
- 23 Manufacture of other non-metallic mineral products45
- 24 Manufacture of basic metals11
- 25 Manufacture of fabricated metal products, except machinery and equipment158
- 26 Manufacture of computer, electronic and optical products50
- 27 Manufacture of electrical equipment31
- 28 Manufacture of machinery and equipment n.e.c.90
- 29 Manufacture of motor vehicles, trailers and semi-trailers16
- 30 Manufacture of other transport equipment10
- 31 Manufacture of furniture59
- 32 Other manufacturing64
- 33 Repair, maintenance and installation of machinery and equipment73
- 37 Sewerage12
- 38 Waste collection, recovery and disposal activities34
- 41 Construction of residential and non-residential buildings578
- 42 Civil engineering84
- 43 Specialised construction activities1,405
- 46 Wholesale trade1,556
- 47 Retail trade1,709
- 49 Land transport and transport via pipelines531
- 51 Air transport11
- 52 Warehousing, storage and support activities for transportation112
- 53 Postal and courier activities33
- 55 Accommodation75
- 56 Food and beverage service activities1,276
- 58 Publishing activities40
- 59 Motion picture, video and television programme production, sound recording and music publishing activities62
- 61 Telecommunication32
- 62 Computer programming, consultancy and related activities590
- 63 Computing infrastructure, data processing, hosting and other information service activities37
- 64 Financial service activities, except insurance and pension funding229
- 66 Activities auxiliary to financial services and insurance activities292
- 68 Real estate activities440
- 69 Legal and accounting activities479
- 70 Activities of head offices and management consultancy543
- 72 Scientific research and development38
- 73 Activities of advertising, market research and public relations177
- 74 Other professional, scientific and technical activities51
- 75 Veterinary activities56
- 77 Rental and leasing activities64
- 78 Employment activities49
- 79 Travel agency, tour operator and other reservation service and related activities41
- 80 Investigation and security activities22
- 81 Services to buildings and landscape activities286
- 82 Office administrative, office support and other business support activities146
- 85 Education106
- 86 Human health activities483
- 87 Residential care activities91
- 88 Social work activities without accommodation133
- 90 Arts creation and performing arts activities47
- 91 Libraries, archives, museums and other cultural activities14
- 93 Sports activities and amusement and recreation activities110
- 94 Activities of membership organisations64
- 95 Repair and maintenance of computers, personal and household goods, and motor vehicles and motorcycles153
- 96 Personal service activities282
Municipalities with the most companies in the sector · Flemish Brabant
- 3001 Leuven (Heverlee)81
- 3000 Leuven74
- 3010 Leuven (Kessel Lo)55
- 3020 Herent (Veltem-Beisem, Winksele)39
- 3090 Overijse39
- 3080 Tervuren (Duisburg, Vossem)36
- 3290 Diest (Deurne, Schaffen, Webbekom)36
- 1800 Vilvoorde (Peutie)34
- 1700 Dilbeek (Sint-Martens-Bodegem, Sint-Ulriks-Kapelle)33
- 1930 Zaventem (Nossegem)33
- 3140 Keerbergen31
- 1785 Merchtem (Brussegem, Hamme)29
Frequently asked questions
Which is the largest employer in Architectural and engineering activities; technical testing and analysis in Flemish Brabant?
Among companies, Vincotte, with 973 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. 265 out of 1,581 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 · Flemish Brabant
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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 12 Nov 2026.