Ranking · Flemish Brabant · NACE 42
Civil engineering: the largest companies in Flemish Brabant
As of 14 Nov 2026, 294 companies in Civil engineering (NACE 42) in Flemish Brabant publish total assets in recent accounts (financial years 2023 to 2026). The top 10 account for €359.5m, out of €569.7m for all of them; median total assets are 170,409 €. Siemens Energy leads with €107.3m (financial year 2025).
Top 50 · Civil engineering · Flemish 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 | Siemens Energy 1654 Beersel | €107.3m | €155.1m | €19.3m | 102.6 | 2025 |
| 2 | Intercommunale Maatschappij voor de Ruimtelijke Ordening en de Economische Sociale Expansie van het Arrondissement Leuven 3000 Leuven | €95.2m | €11.7m | €23.4m | 70.0 | 2025 |
| 3 | Dredging & Contracting Belgium 3090 Overijse | €37.2m | — | −405,948 € | 0.6 | 2025 |
| 4 | GKW 1740 Ternat | €24.1m | €38.2m | €7.92m | 116.8 | 2025 |
| 5 | Circet Projects 1930 Zaventem | €23.0m | €39.2m | €6.80m | 71.8 | 2025 |
| 6 | Stedimo 3000 Leuven | €21.5m | — | €11.6m | — | 2025 |
| 7 | Damovo Technology Services 1932 Zaventem | €17.4m | €11.8m | €8.03m | 41.5 | 2024 |
| 8 | Tranzcom ICT 1730 Asse | €13.0m | €14.8m | €7.43m | 87.5 | 2025 |
| 9 | Dragages, Graviers et Travaux 1933 Zaventem | €11.6m | €4.25m | €10.3m | — | 2025 |
| 10 | Dekempeneer 1830 Machelen (Brab.) | €9.25m | €19.9m | €3.26m | 62.1 | 2025 |
| 11 | De Kavel 3201 Aarschot | €9.21m | — | €7.90m | — | 2025 |
| 12 | Liema 3300 Tienen | €7.83m | €12.2m | €1.93m | 38.0 | 2025 |
| 13 | Electrobuild 1930 Zaventem | €7.67m | €10.3m | €6.31m | 37.2 | 2025 |
| 14 | E. de Kock 3090 Overijse | €7.42m | €4.65m | €3.40m | 23.1 | 2024 |
| 15 | Holgo 3190 Boortmeerbeek | €7.09m | — | €1.92m | 12.1 | 2025 |
| 16 | Ascom (Belgium) 1930 Zaventem | €6.94m | €12.2m | €1.76m | 35.1 | 2025 |
| 17 | Terraco 3191 Boortmeerbeek | €6.47m | — | €6.14m | — | 2025 |
| 18 | Rameis 3090 Overijse | €6.30m | — | −€1.40m | — | 2025 |
| 19 | Croes Infra 3450 Geetbets | €6.25m | — | 782,815 € | 34.3 | 2025 |
| 20 | TerUsus 1930 Zaventem | €6.08m | — | €2.76m | 23.2 | 2025 |
| 21 | Geeroms Wegenbouw 1840 Londerzeel | €5.58m | — | €5.09m | 6.8 | 2025 |
| 22 | DC Bouw 3020 Herent | €5.57m | — | €1.17m | 48.9 | 2024 |
| 23 | Hazeweide Land 1831 Machelen (Brab.) | €5.56m | — | −577,156 € | — | 2025 |
| 24 | NIJS 3271 Scherpenheuvel-Zichem | €5.50m | — | €3.32m | 13.5 | 2025 |
| 25 | V&V-Infra 3290 Diest | €5.30m | €10.8m | €1.84m | 29.5 | 2025 |
| 26 | Grondwerken Hendrickx 1670 Pepingen | €4.02m | — | 369,497 € | 2.0 | 2025 |
| 27 | Willy Van Calsteren 1800 Vilvoorde | €3.73m | — | €2.64m | — | 2025 |
| 28 | Konim 1600 Sint-Pieters-Leeuw | €3.44m | — | €3.41m | — | 2025 |
| 29 | Tuinen Meysmans 1980 Zemst | €3.40m | — | €2.69m | 1.2 | 2025 |
| 30 | Ervila 1790 Affligem | €2.78m | — | €2.69m | — | 2025 |
| 31 | B.C.T Millon 3150 Haacht | €2.63m | — | €1.81m | 3.3 | 2025 |
| 32 | CINK Investment 3128 Tremelo | €2.31m | — | €1.00m | — | 2025 |
| 33 | Bedagro 1540 Pajottegem | €2.31m | — | €1.37m | — | 2025 |
| 34 | DNC Build 3061 Bertem | €2.30m | — | €1.56m | 1.0 | 2025 |
| 35 | Van Eeckhoudt Zwembaden 1861 Meise | €2.29m | — | €1.31m | 3.8 | 2025 |
| 36 | Schildersbedrijf VRS 3300 Tienen | €2.16m | — | 119,561 € | — | 2025 |
| 37 | Sportoase Wilsele-Putkapel 3012 Leuven | €2.14m | — | 533,119 € | 12.3 | 2025 |
| 38 | Van Lembergen Gebroeders 1745 Opwijk | €2.10m | — | 788,351 € | 6.1 | 2026 |
| 39 | Van Lathem - Galmart Recycling 1500 Halle | €2.06m | — | €1.83m | 3.8 | 2025 |
| 40 | Van de Velde 3120 Tremelo | €2.00m | — | 803,709 € | — | 2025 |
| 41 | Onderneming Bellefroid 3071 Kortenberg | €1.92m | — | 403,042 € | 1.5 | 2025 |
| 42 | Sente Road Repair 3320 Hoegaarden | €1.79m | — | −183,508 € | — | 2026 |
| 43 | Vitski 1800 Vilvoorde | €1.67m | — | 132,605 € | — | 2025 |
| 44 | Bazelmans M. 1850 Grimbergen | €1.61m | — | €1.27m | 2.3 | 2025 |
| 45 | Puttevils 3350 Linter | €1.54m | — | €1.01m | 2.0 | 2025 |
| 46 | DMI Construct 3202 Aarschot | €1.50m | — | 281,942 € | 6.6 | 2025 |
| 47 | Group Beyers 3061 Bertem | €1.49m | — | 518,690 € | 10.9 | 2025 |
| 48 | Telelink 3271 Scherpenheuvel-Zichem | €1.46m | €1.48m | 826,621 € | 6.0 | 2025 |
| 49 | European Security Concept 1620 Drogenbos | €1.43m | — | 473,556 € | 20.0 | 2025 |
| 50 | Strabo-Wegenbouw 1850 Grimbergen | €1.38m | — | 191,017 € | 13.4 | 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.
Civil engineering across Belgium → All sectors · Flemish Brabant →
Other sectors · Flemish Brabant
- 01 Crop and animal production, hunting and related service activities578
- 02 Forestry and logging32
- 08 Other mining and quarrying13
- 10 Manufacture of food products446
- 11 Manufacture of beverages78
- 13 Manufacture of textiles43
- 14 Manufacture of wearing apparel33
- 16 Manufacture of wood and of products of wood and cork, except furniture; manufacture of articles of straw and plaiting materials120
- 17 Manufacture of paper and paper products32
- 18 Printing and reproduction of recorded media210
- 20 Manufacture of chemicals and chemical products56
- 21 Manufacture of basic pharmaceutical products and pharmaceutical preparations38
- 22 Manufacture of rubber and plastic products65
- 23 Manufacture of other non-metallic mineral products103
- 24 Manufacture of basic metals23
- 25 Manufacture of fabricated metal products, except machinery and equipment387
- 26 Manufacture of computer, electronic and optical products95
- 27 Manufacture of electrical equipment77
- 28 Manufacture of machinery and equipment n.e.c.150
- 29 Manufacture of motor vehicles, trailers and semi-trailers41
- 30 Manufacture of other transport equipment17
- 31 Manufacture of furniture116
- 32 Other manufacturing156
- 33 Repair, maintenance and installation of machinery and equipment333
- 35 Electricity, gas, steam and air conditioning supply74
- 37 Sewerage26
- 38 Waste collection, recovery and disposal activities75
- 39 Remediation activities and other waste management service activities22
- 41 Construction of residential and non-residential buildings3,662
- 43 Specialised construction activities6,325
- 46 Wholesale trade3,996
- 47 Retail trade4,704
- 49 Land transport and transport via pipelines1,858
- 50 Water transport11
- 51 Air transport34
- 52 Warehousing, storage and support activities for transportation305
- 53 Postal and courier activities135
- 55 Accommodation230
- 56 Food and beverage service activities2,727
- 58 Publishing activities167
- 59 Motion picture, video and television programme production, sound recording and music publishing activities359
- 60 Programming, broadcasting, news agency and other content distribution activities37
- 61 Telecommunication98
- 62 Computer programming, consultancy and related activities4,614
- 63 Computing infrastructure, data processing, hosting and other information service activities521
- 64 Financial service activities, except insurance and pension funding2,304
- 65 Insurance, reinsurance and pension funding, except compulsory social security22
- 66 Activities auxiliary to financial services and insurance activities811
- 68 Real estate activities4,996
- 69 Legal and accounting activities2,573
- 70 Activities of head offices and management consultancy7,650
- 71 Architectural and engineering activities; technical testing and analysis1,570
- 72 Scientific research and development142
- 73 Activities of advertising, market research and public relations1,741
- 74 Other professional, scientific and technical activities558
- 75 Veterinary activities194
- 77 Rental and leasing activities319
- 78 Employment activities235
- 79 Travel agency, tour operator and other reservation service and related activities124
- 80 Investigation and security activities62
- 81 Services to buildings and landscape activities1,143
- 82 Office administrative, office support and other business support activities1,795
- 84 Public administration and defence; compulsory social security16
- 85 Education544
- 86 Human health activities4,953
- 87 Residential care activities104
- 88 Social work activities without accommodation191
- 90 Arts creation and performing arts activities397
- 91 Libraries, archives, museums and other cultural activities27
- 92 Gambling and betting activities22
- 93 Sports activities and amusement and recreation activities481
- 94 Activities of membership organisations117
- 95 Repair and maintenance of computers, personal and household goods, and motor vehicles and motorcycles522
- 96 Personal service activities1,095
Municipalities with the most companies in the sector · Flemish Brabant
- 1930 Zaventem (Nossegem)21
- 1800 Vilvoorde (Peutie)15
- 1932 Zaventem (Sint-Stevens-Woluwe)12
- 1600 Sint-Pieters-Leeuw (Oudenaken, Sint-Laureins-Berchem)11
- 3090 Overijse11
- 3290 Diest (Deurne, Schaffen, Webbekom)11
- 1831 Machelen (Brab.) (Diegem)10
- 3300 Tienen (Bost, Goetsenhoven, Hakendover, …)9
- 1640 Sint-Genesius-Rode (Rhode-Saint-Genèse)8
- 1853 Grimbergen (Strombeek-Bever)8
- 1840 Londerzeel (Malderen, Steenhuffel)7
- 1850 Grimbergen7
Frequently asked questions
Which is the largest company in Civil engineering in Flemish Brabant?
By total assets, it is Siemens Energy (€107.3m, financial year 2025).
How many companies in Civil engineering in Flemish Brabant are ranked?
294 out of 310 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.
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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.