Specialised construction activities: the largest employers in Walloon Brabant
As of 14 Nov 2026, 562 companies in Specialised construction activities (NACE 43) in Walloon Brabant report employees in recent accounts (financial years 2023 to 2026). The 10 largest employers account for 845 FTE, out of 3,306.7 for all of them; median headcount is 2.2 FTE. Franki Foundations Belgium leads with 306 FTE (financial year 2025).
Top 50 · Specialised construction activities · Walloon 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 | Franki Foundations Belgium 1480 Tubize | €111.4m | €78.2m | €41.1m | 306.0 | 2025 |
| 2 | Senec 1420 Braine-l'Alleud | €6.11m | €15.5m | −950,968 € | 114.2 | 2024 |
| 3 | Fugro Belgium 1348 Ottignies-Louvain-la-Neuve | €6.86m | €15.8m | €2.73m | 80.1 | 2024 |
| 4 | Tectum DSB 1440 Braine-le-Château | €3.91m | €8.66m | €1.32m | 60.4 | 2025 |
| 5 | Onefield ICT 1400 Nivelles | €7.26m | €12.6m | 54,156 € | 52.6 | 2025 |
| 6 | Terra Elec 1480 Tubize | €2.63m | — | 183,864 € | 50.5 | 2025 |
| 7 | Murprotec 1440 Braine-le-Château | €18.1m | €45.0m | €8.28m | 48.3 | 2025 |
| 8 | Toitures Bernard 1400 Nivelles | €2.72m | — | 261,085 € | 47.1 | 2026 |
| 9 | VDRT 1470 Genappe | €6.17m | €8.40m | 805,486 € | 43.0 | 2025 |
| 10 | Onefield Energy 1400 Nivelles | €1.98m | €3.73m | 99,868 € | 42.8 | 2025 |
| 11 | Jemisol 1400 Nivelles | €3.94m | — | €2.52m | 42.3 | 2025 |
| 12 | ALL Access 1420 Braine-l'Alleud | €3.08m | — | €1.13m | 42.3 | 2025 |
| 13 | Ventair 1402 Nivelles | €5.08m | — | €1.60m | 39.1 | 2025 |
| 14 | Urban Services 1400 Nivelles | €1.28m | — | 507,925 € | 38.5 | 2025 |
| 15 | Aireco-Tech 1402 Nivelles | €2.96m | — | 767,971 € | 36.7 | 2025 |
| 16 | Endeco 1301 Wavre | €6.41m | — | €4.39m | 36.6 | 2025 |
| 17 | Itelec 1325 Chaumont-Gistoux | €1.22m | — | −284,328 € | 33.4 | 2025 |
| 18 | Murprotec Services 1420 Braine-l'Alleud | €1.27m | — | 201,444 € | 33.2 | 2025 |
| 19 | Le Chimiste 1300 Wavre | €5.21m | — | €4.16m | 27.8 | 2025 |
| 20 | Le Decorateur Michel 1430 Rebecq | €1.19m | €2.10m | 172,214 € | 26.8 | 2025 |
| 21 | V.D.K. 1430 Rebecq | 782,661 € | — | −€2.08m | 26.0 | 2025 |
| 22 | Etablissements Deridder 1401 Nivelles | €2.35m | — | 915,239 € | 23.5 | 2025 |
| 23 | Chauffage Elaerts et Cie 1460 Ittre | €1.55m | €5.02m | 741,011 € | 23.1 | 2025 |
| 24 | International Montage Maintenance 1410 Waterloo | €10.5m | €11.5m | €4.05m | 23.0 | 2025 |
| 25 | Eugetec 1428 Braine-l'Alleud | 748,895 € | — | 95,186 € | 21.4 | 2025 |
| 26 | ESA Security 1380 Lasne | €2.11m | — | €1.22m | 21.1 | 2025 |
| 27 | SCM Closse Joel 1370 Jodoigne | €1.62m | €4.99m | 521,656 € | 20.5 | 2025 |
| 28 | Etablissements Demol 1430 Rebecq | 905,375 € | €2.46m | 125,937 € | 19.8 | 2025 |
| 29 | AIR CLIM ou AIRCLIM 1420 Braine-l'Alleud | €1.72m | — | 4,927 € | 19.7 | 2025 |
| 30 | Succes Company 1300 Wavre | €1.19m | — | 400,587 € | 19.7 | 2025 |
| 31 | Murpro Group 1440 Braine-le-Château | €93.1m | €2.21m | €90.2m | 19.5 | 2025 |
| 32 | Inter Belgium Security 1390 Grez-Doiceau | €1.88m | — | 106,559 € | 18.7 | 2025 |
| 33 | De Kock Wavre 1300 Wavre | €6.37m | €6.29m | €1.91m | 18.4 | 2024 |
| 34 | Hydrotec Assainissement 1300 Wavre | €1.07m | — | 517,805 € | 18.3 | 2025 |
| 35 | Etablissements Denis Legrand 1450 Chastre | 850,653 € | — | 82,128 € | 17.8 | 2025 |
| 36 | Charpente & Construction Bois 1440 Braine-le-Château | €2.79m | €3.42m | €1.57m | 16.8 | 2025 |
| 37 | HOSLET Frédéric 1360 Perwez | €4.45m | — | €2.24m | 16.5 | 2025 |
| 38 | Maxconfort 1300 Wavre | 862,760 € | — | 363,705 € | 15.9 | 2025 |
| 39 | M2O 1360 Perwez | €1.42m | — | €1.15m | 15.7 | 2025 |
| 40 | ZeBorne 1400 Nivelles | €2.07m | €3.23m | €1.04m | 15.7 | 2025 |
| 41 | Argos Industrial 1402 Nivelles | 447,367 € | — | 75,071 € | 15.1 | 2025 |
| 42 | Gailly 1420 Braine-l'Alleud | 841,612 € | — | 515,860 € | 14.9 | 2025 |
| 43 | Remy A Neuf 1402 Nivelles | 964,779 € | — | 202,485 € | 14.9 | 2025 |
| 44 | Mélon Peinture et Décoration 1400 Nivelles | 804,481 € | — | 290,807 € | 14.9 | 2025 |
| 45 | AKL Services 1490 Court-Saint-Étienne | 587,044 € | — | −118,350 € | 14.3 | 2025 |
| 46 | EKO-Okna 1400 Nivelles | €2.09m | — | 387,942 € | 14.1 | 2025 |
| 47 | Profeno Group 1370 Jodoigne | €1.01m | — | 78,445 € | 14.0 | 2025 |
| 48 | Ocelec sécurity systems 1348 Ottignies-Louvain-la-Neuve | €1.73m | — | 441,244 € | 13.9 | 2025 |
| 49 | Sebati 1430 Rebecq | €1.82m | — | 804,074 € | 13.6 | 2025 |
| 50 | Entreprise Générale de chauffage et Sanitaire Didier FANNA 1360 Perwez | 916,531 € | — | 569,650 € | 13.5 | 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.
Specialised construction activities across Belgium → All sectors · Walloon Brabant →
Other sectors · Walloon Brabant
- 01 Crop and animal production, hunting and related service activities125
- 02 Forestry and logging19
- 10 Manufacture of food products109
- 11 Manufacture of beverages13
- 16 Manufacture of wood and of products of wood and cork, except furniture; manufacture of articles of straw and plaiting materials22
- 18 Printing and reproduction of recorded media46
- 20 Manufacture of chemicals and chemical products23
- 21 Manufacture of basic pharmaceutical products and pharmaceutical preparations18
- 22 Manufacture of rubber and plastic products16
- 23 Manufacture of other non-metallic mineral products29
- 24 Manufacture of basic metals10
- 25 Manufacture of fabricated metal products, except machinery and equipment74
- 26 Manufacture of computer, electronic and optical products32
- 27 Manufacture of electrical equipment18
- 28 Manufacture of machinery and equipment n.e.c.36
- 29 Manufacture of motor vehicles, trailers and semi-trailers11
- 31 Manufacture of furniture31
- 32 Other manufacturing37
- 33 Repair, maintenance and installation of machinery and equipment32
- 38 Waste collection, recovery and disposal activities11
- 41 Construction of residential and non-residential buildings155
- 42 Civil engineering28
- 46 Wholesale trade589
- 47 Retail trade904
- 49 Land transport and transport via pipelines125
- 52 Warehousing, storage and support activities for transportation22
- 55 Accommodation34
- 56 Food and beverage service activities513
- 58 Publishing activities44
- 59 Motion picture, video and television programme production, sound recording and music publishing activities34
- 61 Telecommunication13
- 62 Computer programming, consultancy and related activities328
- 63 Computing infrastructure, data processing, hosting and other information service activities17
- 64 Financial service activities, except insurance and pension funding76
- 66 Activities auxiliary to financial services and insurance activities117
- 68 Real estate activities236
- 69 Legal and accounting activities249
- 70 Activities of head offices and management consultancy323
- 71 Architectural and engineering activities; technical testing and analysis145
- 72 Scientific research and development25
- 73 Activities of advertising, market research and public relations89
- 74 Other professional, scientific and technical activities31
- 75 Veterinary activities26
- 77 Rental and leasing activities22
- 78 Employment activities28
- 79 Travel agency, tour operator and other reservation service and related activities14
- 81 Services to buildings and landscape activities144
- 82 Office administrative, office support and other business support activities57
- 85 Education78
- 86 Human health activities243
- 87 Residential care activities59
- 88 Social work activities without accommodation60
- 90 Arts creation and performing arts activities28
- 93 Sports activities and amusement and recreation activities91
- 94 Activities of membership organisations30
- 95 Repair and maintenance of computers, personal and household goods, and motor vehicles and motorcycles66
- 96 Personal service activities126
Municipalities with the most companies in the sector · Walloon Brabant
- 1300 Wavre (Limal)181
- 1410 Waterloo160
- 1420 Braine-l'Alleud137
- 1480 Tubize (Clabecq, Oisquercq, Saintes)122
- 1380 Lasne (Couture-Saint-Germain, Lasne-Chapelle-Saint-Lambert, Maransart, …)83
- 1400 Nivelles (Monstreux)83
- 1440 Braine-le-Château (Wauthier-Braine)80
- 1325 Chaumont-Gistoux (Bonlez, Corroy-Le-Grand, Dion-Valmont, …)77
- 1370 Jodoigne (Dongelberg, Jauchelette, Jodoigne-Souveraine, …)77
- 1390 Grez-Doiceau (Archennes, Biez, Bossut-Gottechain, …)76
- 1495 Villers-la-Ville (Marbais, Mellery, Sart-Dames-Avelines, …)69
- 1430 Rebecq (Bierghes, Quenast, Rebecq-Rognon)63
Frequently asked questions
Which is the largest employer in Specialised construction activities in Walloon Brabant?
Among companies, Franki Foundations Belgium, with 306 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. 562 out of 2,068 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 · Walloon 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 14 Nov 2026.