Ranking · Walloon Brabant · NACE 41
Construction of residential and non-residential buildings: the largest companies in Walloon Brabant
As of 14 Nov 2026, 593 companies in Construction of residential and non-residential buildings (NACE 41) in Walloon Brabant publish total assets in recent accounts (financial years 2023 to 2026). The top 10 account for €191.6m, out of €448.5m for all of them; median total assets are 157,454 €. Concept Confort leads with €45.5m (financial year 2025).
Top 50 · Construction of residential and non-residential buildings · Walloon Brabant
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 | Concept Confort 1342 Ottignies-Louvain-la-Neuve | €45.5m | €24.2m | 308,372 € | 8.7 | 2025 |
| 2 | B.W. Promo 1435 Mont-Saint-Guibert | €44.9m | — | €3.43m | — | 2025 |
| 3 | Phenix Group 1480 Tubize | €18.6m | €30.0m | €1.63m | 40.6 | 2025 |
| 4 | Sequence 1440 Braine-le-Château | €17.9m | — | €15.4m | — | 2024 |
| 5 | Votquenne Foundations 1480 Tubize | €17.9m | €27.1m | €4.03m | 29.0 | 2025 |
| 6 | Innovatie Construction Company 1435 Mont-Saint-Guibert | €15.1m | — | −43,547 € | — | 2025 |
| 7 | Immobiliere Dumont 6 1435 Mont-Saint-Guibert | €13.4m | — | 696,326 € | — | 2025 |
| 8 | TC Mat 1495 Villers-la-Ville | €6.65m | — | 632,054 € | 1.9 | 2025 |
| 9 | TS Construct SRL 1370 Jodoigne | €5.84m | €14.2m | €1.12m | 34.7 | 2025 |
| 10 | Supali 1410 Waterloo | €5.82m | 8,600 € | €1.48m | — | 2025 |
| 11 | VLD + 1300 Wavre | €5.63m | €10.3m | €1.79m | 22.9 | 2026 |
| 12 | Ardmac 1300 Wavre | €5.42m | — | €1.93m | 6.9 | 2025 |
| 13 | Nivelles Office Parc 5 1435 Mont-Saint-Guibert | €5.12m | — | −101,065 € | — | 2025 |
| 14 | BDR-groupe 1410 Waterloo | €4.81m | 52,815 € | €3.83m | — | 2025 |
| 15 | Immogum 1435 Mont-Saint-Guibert | €4.05m | — | €2.39m | — | 2025 |
| 16 | Les Entreprises Generales J. Simon et Fils 1473 Genappe | €4.00m | — | €3.28m | 10.4 | 2025 |
| 17 | Construct ME 1410 Waterloo | €3.91m | 34,400 € | −€7.25m | — | 2025 |
| 18 | Domus Concept 1370 Jodoigne | €3.75m | — | €1.99m | 6.1 | 2025 |
| 19 | Holimaco 1325 Chaumont-Gistoux | €3.69m | — | 345,448 € | — | 2025 |
| 20 | E.T.I. Construct 1300 Wavre | €3.64m | — | €1.48m | 7.0 | 2025 |
| 21 | Construbel 1402 Nivelles | €3.29m | — | 854,022 € | 18.0 | 2025 |
| 22 | Constructions D.B.L. 1390 Grez-Doiceau | €2.99m | — | €1.29m | 3.1 | 2025 |
| 23 | E.T.H. 1370 Jodoigne | €2.85m | — | 962,761 € | 19.8 | 2025 |
| 24 | Solution Energie Belgique 1300 Wavre | €2.75m | €7.17m | €2.11m | 6.9 | 2025 |
| 25 | ArteziA group 1420 Braine-l'Alleud | €2.74m | — | 850,874 € | 1.0 | 2025 |
| 26 | Entreprises Generales Masset 1457 Walhain | €2.65m | — | €2.27m | 24.8 | 2025 |
| 27 | Blue Factory 1390 Grez-Doiceau | €2.56m | — | €1.55m | 2.9 | 2025 |
| 28 | VIKI 1410 Waterloo | €2.31m | — | 663,137 € | — | 2025 |
| 29 | Demimo 1420 Braine-l'Alleud | €2.25m | — | €1.02m | — | 2025 |
| 30 | Cubics 1435 Mont-Saint-Guibert | €2.15m | — | 955,803 € | 4.0 | 2025 |
| 31 | Atelier Jordens 1360 Perwez | €2.13m | — | 628,683 € | 12.0 | 2025 |
| 32 | JDW Invest Group 1495 Villers-la-Ville | €2.04m | — | 242,807 € | 0.4 | 2025 |
| 33 | O.I.C.I. 1410 Waterloo | €2.03m | — | 437,339 € | — | 2025 |
| 34 | GVH-Immo 1440 Braine-le-Château | €2.01m | — | 79,978 € | 2.0 | 2025 |
| 35 | Beri Roxxon 1320 Beauvechain | €1.91m | — | €1.21m | — | 2025 |
| 36 | Datos Construct 1480 Tubize | €1.85m | — | −30,237 € | — | 2025 |
| 37 | Energ-IR 1367 Ramillies | €1.85m | — | 575,559 € | 7.2 | 2025 |
| 38 | Gecima 1300 Wavre | €1.81m | — | €1.63m | 5.3 | 2025 |
| 39 | Immo-Jambes 1410 Waterloo | €1.73m | — | €1.64m | — | 2025 |
| 40 | BREBOIS Construct 1430 Rebecq | €1.67m | — | 643,972 € | 7.1 | 2024 |
| 41 | Confortech 1342 Ottignies-Louvain-la-Neuve | €1.65m | — | 238,222 € | 5.0 | 2025 |
| 42 | de LUMMEN et WILLEMS 1435 Mont-Saint-Guibert | €1.65m | — | 357,887 € | 2.1 | 2026 |
| 43 | X-Two Consult 1315 Incourt | €1.64m | — | 950,394 € | — | 2025 |
| 44 | Hoslet Freres 1325 Chaumont-Gistoux | €1.62m | — | 68,167 € | — | 2025 |
| 45 | Struktura Build 1410 Waterloo | €1.60m | — | 3,110 € | — | 2025 |
| 46 | GK Decor 1410 Waterloo | €1.59m | — | 132,760 € | — | 2024 |
| 47 | Top Construct-Ivan 1428 Braine-l'Alleud | €1.53m | — | 553,055 € | — | 2025 |
| 48 | Emac in Wood 1390 Grez-Doiceau | €1.50m | — | 112,315 € | — | 2024 |
| 49 | DAR-Deco Invest 1332 Rixensart | €1.49m | — | 520,014 € | — | 2025 |
| 50 | LVS Construct 1450 Chastre | €1.48m | — | −68,570 € | 9.6 | 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.
Construction of residential and non-residential buildings across Belgium → All sectors · Walloon Brabant →
Other sectors · Walloon Brabant
- 01 Crop and animal production, hunting and related service activities368
- 02 Forestry and logging50
- 08 Other mining and quarrying11
- 10 Manufacture of food products186
- 11 Manufacture of beverages42
- 13 Manufacture of textiles23
- 14 Manufacture of wearing apparel26
- 16 Manufacture of wood and of products of wood and cork, except furniture; manufacture of articles of straw and plaiting materials57
- 17 Manufacture of paper and paper products13
- 18 Printing and reproduction of recorded media152
- 20 Manufacture of chemicals and chemical products46
- 21 Manufacture of basic pharmaceutical products and pharmaceutical preparations46
- 22 Manufacture of rubber and plastic products29
- 23 Manufacture of other non-metallic mineral products56
- 24 Manufacture of basic metals16
- 25 Manufacture of fabricated metal products, except machinery and equipment165
- 26 Manufacture of computer, electronic and optical products66
- 27 Manufacture of electrical equipment38
- 28 Manufacture of machinery and equipment n.e.c.67
- 29 Manufacture of motor vehicles, trailers and semi-trailers23
- 30 Manufacture of other transport equipment14
- 31 Manufacture of furniture80
- 32 Other manufacturing94
- 33 Repair, maintenance and installation of machinery and equipment87
- 35 Electricity, gas, steam and air conditioning supply42
- 37 Sewerage13
- 38 Waste collection, recovery and disposal activities21
- 42 Civil engineering71
- 43 Specialised construction activities1,986
- 46 Wholesale trade1,783
- 47 Retail trade2,143
- 49 Land transport and transport via pipelines250
- 51 Air transport15
- 52 Warehousing, storage and support activities for transportation80
- 53 Postal and courier activities11
- 55 Accommodation102
- 56 Food and beverage service activities1,007
- 58 Publishing activities166
- 59 Motion picture, video and television programme production, sound recording and music publishing activities234
- 60 Programming, broadcasting, news agency and other content distribution activities21
- 61 Telecommunication35
- 62 Computer programming, consultancy and related activities1,984
- 63 Computing infrastructure, data processing, hosting and other information service activities159
- 64 Financial service activities, except insurance and pension funding733
- 65 Insurance, reinsurance and pension funding, except compulsory social security24
- 66 Activities auxiliary to financial services and insurance activities412
- 68 Real estate activities2,735
- 69 Legal and accounting activities1,163
- 70 Activities of head offices and management consultancy4,026
- 71 Architectural and engineering activities; technical testing and analysis906
- 72 Scientific research and development101
- 73 Activities of advertising, market research and public relations1,026
- 74 Other professional, scientific and technical activities340
- 75 Veterinary activities118
- 77 Rental and leasing activities136
- 78 Employment activities99
- 79 Travel agency, tour operator and other reservation service and related activities49
- 80 Investigation and security activities37
- 81 Services to buildings and landscape activities493
- 82 Office administrative, office support and other business support activities641
- 85 Education349
- 86 Human health activities2,543
- 87 Residential care activities75
- 88 Social work activities without accommodation85
- 90 Arts creation and performing arts activities186
- 91 Libraries, archives, museums and other cultural activities13
- 93 Sports activities and amusement and recreation activities295
- 94 Activities of membership organisations44
- 95 Repair and maintenance of computers, personal and household goods, and motor vehicles and motorcycles195
- 96 Personal service activities380
Municipalities with the most companies in the sector · Walloon Brabant
- 1410 Waterloo64
- 1300 Wavre (Limal)46
- 1420 Braine-l'Alleud38
- 1380 Lasne (Couture-Saint-Germain, Lasne-Chapelle-Saint-Lambert, Maransart, …)35
- 1370 Jodoigne (Dongelberg, Jauchelette, Jodoigne-Souveraine, …)30
- 1480 Tubize (Clabecq, Oisquercq, Saintes)30
- 1440 Braine-le-Château (Wauthier-Braine)29
- 1390 Grez-Doiceau (Archennes, Biez, Bossut-Gottechain, …)28
- 1400 Nivelles (Monstreux)27
- 1325 Chaumont-Gistoux (Bonlez, Corroy-Le-Grand, Dion-Valmont, …)24
- 1435 Mont-Saint-Guibert (Corbais, Hévillers)19
- 1470 Genappe (Baisy-Thy, Bousval)18
Frequently asked questions
Which is the largest company in Construction of residential and non-residential buildings in Walloon Brabant?
By total assets, it is Concept Confort (€45.5m, financial year 2025).
How many companies in Construction of residential and non-residential buildings in Walloon Brabant are ranked?
593 out of 638 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.
Idonis
Analyse companies · Walloon Brabant
Filter these companies by size, soundness and trend, follow them and get an alert when their accounts or publications change.
Open the full file →Free account in 30 seconds, by email. No bank card.
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.