Specialised construction activities: highest revenue in Flemish Brabant
As of 12 Nov 2026, 482 companies in Specialised construction activities (NACE 43) in Flemish Brabant publish their revenue in recent accounts (financial years 2023 to 2026). The top 10 account for €872.0m, out of €1.42bn for all of them; median revenue is 240,809 €. Sarens leads with €352.0m (financial year 2025).
Top 50 · Specialised construction activities · Flemish Brabant
Ranked by revenue published in the latest filed accounts (accounts less than 3 years old).
| # | Company | Total assets | Revenue | Equity | FTE | Year |
|---|---|---|---|---|---|---|
| 1 | Sarens 1861 Meise | €791.7m | €352.0m | €112.6m | 372.3 | 2025 |
| 2 | Grond- en Afbraakwerken G. en A. De Meuter 1740 Ternat | €56.0m | €101.2m | €39.3m | 167.2 | 2025 |
| 3 | Bumaco Koeltechniek 3110 Rotselaar | €31.8m | €95.4m | €18.5m | 269.3 | 2025 |
| 4 | CBRE GWS Belgium 1831 Machelen (Brab.) | €49.2m | €90.8m | €5.46m | 250.8 | 2025 |
| 5 | Imperbel 1654 Beersel | €55.6m | €72.5m | €31.5m | 151.2 | 2025 |
| 6 | Sarens be 1861 Meise | €77.3m | €49.7m | €8.69m | 188.7 | 2025 |
| 7 | Croes 3450 Geetbets | €17.9m | €29.4m | €8.64m | 41.5 | 2025 |
| 8 | Carro - Bel 1740 Ternat | €24.2m | €27.7m | €7.93m | 44.4 | 2025 |
| 9 | Koning 3020 Herent | €12.3m | €26.9m | €6.34m | 36.2 | 2025 |
| 10 | Isoflex 1790 Affligem | €9.92m | €26.4m | €1.84m | 16.5 | 2025 |
| 11 | Godts 3300 Tienen | €22.0m | €24.2m | €10.5m | 30.6 | 2025 |
| 12 | Easykit Group 3110 Rotselaar | €18.1m | €23.7m | €1.59m | 48.5 | 2025 |
| 13 | Systemair 3200 Aarschot | €8.70m | €22.8m | €4.52m | 28.2 | 2025 |
| 14 | Enerdeal 1930 Zaventem | €19.8m | €21.4m | €3.29m | 19.1 | 2025 |
| 15 | Roteam 1930 Zaventem | €10.6m | €20.7m | €5.26m | 15.7 | 2025 |
| 16 | HiSERV Belgium Motorized 1820 Steenokkerzeel | €25.5m | €19.6m | €13.1m | 29.2 | 2025 |
| 17 | The Belgian 1861 Meise | €17.7m | €17.7m | €14.4m | 59.4 | 2025 |
| 18 | Crabbe Dakwerken 3440 Zoutleeuw | €11.7m | €16.7m | €2.42m | 28.3 | 2025 |
| 19 | Thielemans & C° 1785 Merchtem | €7.35m | €15.8m | €4.34m | 41.6 | 2025 |
| 20 | Geotherma 3320 Hoegaarden | €5.65m | €15.3m | €2.26m | 21.1 | 2025 |
| 21 | SigTraCo 1980 Zemst | €7.85m | €14.5m | €3.49m | 47.5 | 2025 |
| 22 | DS Units 1840 Londerzeel | €17.2m | €14.4m | €14.3m | 20.3 | 2025 |
| 23 | Grondwerken Johan Millon 3020 Herent | €9.32m | €14.3m | €6.16m | 23.2 | 2025 |
| 24 | Recon International 1620 Drogenbos | €7.60m | €13.6m | €4.44m | 43.3 | 2025 |
| 25 | Axelent Benelux 3191 Boortmeerbeek | €3.89m | €13.3m | €1.97m | 17.3 | 2025 |
| 26 | De Sutter 1910 Kampenhout | €19.0m | €12.4m | €6.93m | 24.2 | 2024 |
| 27 | Lindner Welsy 3001 Leuven | €5.79m | €12.2m | €1.71m | 15.8 | 2025 |
| 28 | Seba Service 1851 Grimbergen | €5.00m | €12.0m | €2.39m | 11.2 | 2025 |
| 29 | Technical Maintenance Service 1740 Ternat | €5.08m | €11.7m | €1.88m | 43.4 | 2025 |
| 30 | Weiss Technik Belgium 1770 Liedekerke | €12.8m | €10.2m | €4.69m | 32.8 | 2025 |
| 31 | Kitchco 3110 Rotselaar | €3.72m | €8.15m | €2.20m | 23.6 | 2025 |
| 32 | Fichet Security Solutions Belgium 1930 Zaventem | €5.17m | €7.50m | −838,517 € | 37.5 | 2025 |
| 33 | Fläktgroup Belgium 1930 Zaventem | €3.68m | €7.19m | −€2.37m | 21.7 | 2025 |
| 34 | Rensol 1731 Asse | €2.40m | €7.16m | €1.06m | 33.1 | 2025 |
| 35 | S&P Belgium 1800 Vilvoorde | €4.65m | €6.40m | €4.21m | 9.8 | 2025 |
| 36 | EMS Floor Belgium 1930 Zaventem | €1.99m | €5.51m | 27,477 € | 10.1 | 2025 |
| 37 | Roelants Glas 3200 Aarschot | €2.21m | €3.36m | €1.64m | 28.8 | 2024 |
| 38 | Miliv 1730 Asse | €1.33m | €3.14m | 111,553 € | — | 2025 |
| 39 | Dewil R. 3350 Linter | €7.87m | €3.13m | €7.45m | 16.8 | 2025 |
| 40 | EcoRens 1745 Opwijk | 896,183 € | €3.06m | 364,225 € | — | 2025 |
| 41 | Invitec 3460 Bekkevoort | €1.09m | €2.90m | 297,897 € | 4.2 | 2024 |
| 42 | Bacus Concept 1780 Wemmel | 590,410 € | €2.72m | 199,436 € | 1.0 | 2025 |
| 43 | JK-Collectors 1970 Wezembeek-Oppem | 805,990 € | €2.50m | 512,547 € | 11.0 | 2025 |
| 44 | Q-Park Recharge Belgium 1930 Zaventem | €4.56m | €2.46m | €1.07m | — | 2025 |
| 45 | Cardoso Construct 1654 Beersel | 751,594 € | €2.35m | 468,874 € | — | 2025 |
| 46 | Verbeemen Tegelservice 3110 Rotselaar | 782,741 € | €2.31m | 174,890 € | 5.8 | 2025 |
| 47 | Login Renovation 1860 Meise | 839,244 € | €2.26m | 364,144 € | — | 2025 |
| 48 | Bild Concept 1600 Sint-Pieters-Leeuw | €1.90m | €2.24m | 137,660 € | — | 2025 |
| 49 | L.A Cleaning 1970 Wezembeek-Oppem | €1.37m | €2.15m | 674,167 € | — | 2023 |
| 50 | De Sutter Technics 1910 Kampenhout | 784,902 € | €2.00m | 644,843 € | 6.8 | 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. These are the revenue figures published in the annual accounts. Small companies (micro and abridged accounts) do not have to publish theirs: they do not appear in this ranking.
Specialised construction activities across Belgium → All sectors · Flemish Brabant →
Other sectors · Flemish Brabant
- 01 Crop and animal production, hunting and related service activities23
- 10 Manufacture of food products50
- 11 Manufacture of beverages16
- 16 Manufacture of wood and of products of wood and cork, except furniture; manufacture of articles of straw and plaiting materials10
- 18 Printing and reproduction of recorded media13
- 20 Manufacture of chemicals and chemical products23
- 22 Manufacture of rubber and plastic products14
- 25 Manufacture of fabricated metal products, except machinery and equipment41
- 26 Manufacture of computer, electronic and optical products20
- 27 Manufacture of electrical equipment15
- 28 Manufacture of machinery and equipment n.e.c.23
- 32 Other manufacturing16
- 33 Repair, maintenance and installation of machinery and equipment31
- 35 Electricity, gas, steam and air conditioning supply17
- 38 Waste collection, recovery and disposal activities15
- 41 Construction of residential and non-residential buildings412
- 42 Civil engineering31
- 46 Wholesale trade589
- 47 Retail trade404
- 49 Land transport and transport via pipelines243
- 52 Warehousing, storage and support activities for transportation60
- 53 Postal and courier activities20
- 55 Accommodation13
- 56 Food and beverage service activities164
- 58 Publishing activities12
- 59 Motion picture, video and television programme production, sound recording and music publishing activities26
- 61 Telecommunication24
- 62 Computer programming, consultancy and related activities200
- 63 Computing infrastructure, data processing, hosting and other information service activities12
- 64 Financial service activities, except insurance and pension funding130
- 66 Activities auxiliary to financial services and insurance activities29
- 68 Real estate activities152
- 69 Legal and accounting activities78
- 70 Activities of head offices and management consultancy237
- 71 Architectural and engineering activities; technical testing and analysis71
- 73 Activities of advertising, market research and public relations79
- 74 Other professional, scientific and technical activities17
- 77 Rental and leasing activities43
- 78 Employment activities27
- 79 Travel agency, tour operator and other reservation service and related activities15
- 80 Investigation and security activities14
- 81 Services to buildings and landscape activities83
- 82 Office administrative, office support and other business support activities73
- 85 Education96
- 86 Human health activities99
- 87 Residential care activities65
- 88 Social work activities without accommodation54
- 90 Arts creation and performing arts activities59
- 93 Sports activities and amusement and recreation activities32
- 94 Activities of membership organisations40
- 95 Repair and maintenance of computers, personal and household goods, and motor vehicles and motorcycles50
- 96 Personal service activities84
Municipalities with the most companies in the sector · Flemish Brabant
- 1600 Sint-Pieters-Leeuw (Oudenaken, Sint-Laureins-Berchem)347
- 1930 Zaventem (Nossegem)250
- 1780 Wemmel229
- 1800 Vilvoorde (Peutie)202
- 1950 Kraainem178
- 1640 Sint-Genesius-Rode (Rhode-Saint-Genèse)176
- 1730 Asse (Bekkerzeel, Kobbegem, Mollem)168
- 1700 Dilbeek (Sint-Martens-Bodegem, Sint-Ulriks-Kapelle)164
- 3090 Overijse162
- 3300 Tienen (Bost, Goetsenhoven, Hakendover, …)148
- 1853 Grimbergen (Strombeek-Bever)143
- 1970 Wezembeek-Oppem130
Frequently asked questions
Which company in Specialised construction activities in Flemish Brabant has the highest revenue?
Sarens, with €352.0m of published revenue (financial year 2025).
Why are some companies missing?
Small companies (micro and abridged accounts) do not have to publish their revenue: only the 482 that publish it, out of 6,489 companies in the sector in the area, are ranked.
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.