Ranking · Flanders · NACE 43
Specialised construction activities: highest revenue in Flanders
As of 12 Nov 2026, 1,342 companies in Specialised construction activities (NACE 43) in Flanders publish their revenue in recent accounts (financial years 2023 to 2026). The top 10 account for €1.92bn, out of €8.93bn for all of them; median revenue is 339,766 €. Sarens leads with €352.0m (financial year 2025).
Top 50 · Specialised construction activities · Flanders
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 | Jacops 8540 Deerlijk | €160.1m | €271.1m | €54.1m | 647.4 | 2025 |
| 3 | Renotec 2440 Geel | €89.6m | €241.0m | €25.2m | 844.5 | 2025 |
| 4 | Aertssen Infra 2940 Stabroek | €173.1m | €199.1m | €47.7m | 337.0 | 2025 |
| 5 | Altrad Services 9130 Beveren-Kruibeke-Zwijndrecht | €108.4m | €172.0m | €41.2m | 1,098.5 | 2025 |
| 6 | EEG 8560 Wevelgem | €84.0m | €158.7m | €26.3m | 522.5 | 2025 |
| 7 | EnergyVision 9051 Ghent | €205.6m | €151.9m | €134.8m | 162.7 | 2025 |
| 8 | IKO NV 2020 Antwerp | €56.5m | €133.0m | €42.5m | 139.7 | 2025 |
| 9 | Wycor 9230 Wetteren | €53.3m | €124.3m | €17.4m | 170.5 | 2025 |
| 10 | Monument - Vandekerckhove 8770 Ingelmunster | €70.9m | €119.4m | €32.4m | 217.3 | 2025 |
| 11 | Bilfinger Industrial Services Belgiê 2070 Beveren-Kruibeke-Zwijndrecht | €33.1m | €118.8m | €5.49m | 328.4 | 2025 |
| 12 | V.M.A. 9830 Sint-Martens-Latem | €83.7m | €106.8m | €24.6m | 324.0 | 2025 |
| 13 | Grond- en Afbraakwerken G. en A. De Meuter 1740 Ternat | €56.0m | €101.2m | €39.3m | 167.2 | 2025 |
| 14 | Solutions 30 Belgium 2600 Antwerp | €76.6m | €98.8m | 309,381 € | 105.9 | 2025 |
| 15 | Bumaco Koeltechniek 3110 Rotselaar | €31.8m | €95.4m | €18.5m | 269.3 | 2025 |
| 16 | Aclagro 9032 Ghent | €42.6m | €94.1m | €11.3m | 285.3 | 2025 |
| 17 | Beddeleem 9810 Nazareth-De Pinte | €65.5m | €93.1m | €35.6m | 172.9 | 2025 |
| 18 | CBRE GWS Belgium 1831 Machelen (Brab.) | €49.2m | €90.8m | €5.46m | 250.8 | 2025 |
| 19 | Jansen Building Projects 3670 Oudsbergen | €43.9m | €88.6m | €4.72m | 114.4 | 2025 |
| 20 | Dubaere 9880 Aalter | €35.3m | €88.2m | €17.2m | 16.8 | 2025 |
| 21 | Smet-F & C 2480 Dessel | €54.1m | €84.1m | €14.2m | 198.9 | 2025 |
| 22 | Imperbel 1654 Beersel | €55.6m | €72.5m | €31.5m | 151.2 | 2025 |
| 23 | Renewi Belgium 3920 Lommel | €38.9m | €68.0m | €8.22m | 74.6 | 2026 |
| 24 | Aertssen Lifting 2940 Stabroek | €51.2m | €66.7m | €9.41m | 340.1 | 2025 |
| 25 | SIX 8870 Izegem | €31.8m | €65.0m | €13.5m | 198.4 | 2025 |
| 26 | Bio - Dynamics 8710 Wielsbeke | €43.6m | €64.4m | €12.2m | 120.2 | 2025 |
| 27 | Altebra 9500 Geraardsbergen | €165.2m | €60.6m | €34.2m | 101.3 | 2025 |
| 28 | Staalbeton 2310 Rijkevorsel | €40.1m | €60.5m | €13.4m | 90.8 | 2025 |
| 29 | Circet Belgium 3583 Beringen | €32.7m | €60.2m | €19.9m | 365.9 | 2025 |
| 30 | Boons Theo 2370 Arendonk | €26.5m | €54.9m | €8.06m | 92.6 | 2025 |
| 31 | HENS 2990 Wuustwezel | €31.6m | €54.0m | €9.98m | 104.7 | 2025 |
| 32 | KAEFER België 9140 Temse | €23.2m | €53.3m | €8.69m | 265.9 | 2025 |
| 33 | thyssenkrupp Steel Heavy Plate Antwerp 2030 Antwerp | €25.2m | €52.5m | €17.1m | 28.4 | 2025 |
| 34 | Tectum Dekkers 2660 Antwerp | €20.2m | €52.0m | €8.07m | 127.4 | 2025 |
| 35 | Group Ceyssens 3550 Heusden-Zolder | €26.7m | €51.0m | €9.35m | 74.6 | 2025 |
| 36 | Bruynseels - Vochten 2920 Kalmthout | €22.0m | €50.7m | €6.20m | 80.6 | 2025 |
| 37 | Iris Industry Solutions 2440 Geel | €16.2m | €50.0m | €6.82m | 276.9 | 2025 |
| 38 | Sarens be 1861 Meise | €77.3m | €49.7m | €8.69m | 188.7 | 2025 |
| 39 | EIB Insulation 2900 Schoten | €22.9m | €48.1m | €1.85m | 100.4 | 2023 |
| 40 | Zolderse Dakprojecten 3560 Lummen | €16.8m | €47.3m | €7.06m | 97.1 | 2025 |
| 41 | Sparki Renewables 8530 Harelbeke | €39.2m | €45.4m | €2.45m | 57.4 | 2025 |
| 42 | Unit-T Certified Services 2800 Mechelen | €16.4m | €44.8m | €5.64m | 468.0 | 2025 |
| 43 | The Energy Circle 3500 Hasselt | €19.3m | €43.8m | €3.59m | 171.9 | 2025 |
| 44 | Aquasecurity 9320 Aalst | €22.8m | €43.0m | €13.6m | 133.8 | 2025 |
| 45 | De Witte-Vandecaveye 8750 Wingene | €38.1m | €42.9m | €19.0m | 122.6 | 2025 |
| 46 | Veldeman Aannemingen 9200 Dendermonde | €23.8m | €42.9m | €11.7m | 82.6 | 2025 |
| 47 | Insaver 3530 Houthalen-Helchteren | €22.7m | €42.6m | €9.97m | 35.9 | 2025 |
| 48 | MR-Group 8550 Zwevegem | €21.1m | €42.2m | €8.39m | 40.8 | 2025 |
| 49 | DECAT Energy Technics 8630 Veurne | €22.5m | €41.9m | 994,221 € | 235.6 | 2025 |
| 50 | Van Hulle Bouwservice 8700 Tielt | €31.0m | €41.8m | €25.9m | 70.3 | 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 · Flanders →
Other sectors · Flanders
- 01 Crop and animal production, hunting and related service activities202
- 08 Other mining and quarrying23
- 10 Manufacture of food products505
- 11 Manufacture of beverages47
- 13 Manufacture of textiles114
- 14 Manufacture of wearing apparel23
- 16 Manufacture of wood and of products of wood and cork, except furniture; manufacture of articles of straw and plaiting materials66
- 17 Manufacture of paper and paper products58
- 18 Printing and reproduction of recorded media75
- 20 Manufacture of chemicals and chemical products205
- 21 Manufacture of basic pharmaceutical products and pharmaceutical preparations30
- 22 Manufacture of rubber and plastic products153
- 23 Manufacture of other non-metallic mineral products151
- 24 Manufacture of basic metals72
- 25 Manufacture of fabricated metal products, except machinery and equipment348
- 26 Manufacture of computer, electronic and optical products96
- 27 Manufacture of electrical equipment63
- 28 Manufacture of machinery and equipment n.e.c.164
- 29 Manufacture of motor vehicles, trailers and semi-trailers58
- 30 Manufacture of other transport equipment22
- 31 Manufacture of furniture74
- 32 Other manufacturing73
- 33 Repair, maintenance and installation of machinery and equipment130
- 35 Electricity, gas, steam and air conditioning supply146
- 37 Sewerage18
- 38 Waste collection, recovery and disposal activities156
- 41 Construction of residential and non-residential buildings882
- 42 Civil engineering222
- 46 Wholesale trade2,896
- 47 Retail trade1,541
- 49 Land transport and transport via pipelines790
- 50 Water transport49
- 51 Air transport17
- 52 Warehousing, storage and support activities for transportation466
- 53 Postal and courier activities50
- 55 Accommodation105
- 56 Food and beverage service activities498
- 58 Publishing activities55
- 59 Motion picture, video and television programme production, sound recording and music publishing activities67
- 60 Programming, broadcasting, news agency and other content distribution activities10
- 61 Telecommunication45
- 62 Computer programming, consultancy and related activities1,005
- 63 Computing infrastructure, data processing, hosting and other information service activities57
- 64 Financial service activities, except insurance and pension funding1,457
- 66 Activities auxiliary to financial services and insurance activities150
- 68 Real estate activities1,138
- 69 Legal and accounting activities292
- 70 Activities of head offices and management consultancy1,100
- 71 Architectural and engineering activities; technical testing and analysis290
- 72 Scientific research and development43
- 73 Activities of advertising, market research and public relations207
- 74 Other professional, scientific and technical activities72
- 75 Veterinary activities20
- 77 Rental and leasing activities175
- 78 Employment activities135
- 79 Travel agency, tour operator and other reservation service and related activities43
- 80 Investigation and security activities25
- 81 Services to buildings and landscape activities261
- 82 Office administrative, office support and other business support activities336
- 84 Public administration and defence; compulsory social security24
- 85 Education463
- 86 Human health activities385
- 87 Residential care activities346
- 88 Social work activities without accommodation243
- 90 Arts creation and performing arts activities180
- 91 Libraries, archives, museums and other cultural activities19
- 93 Sports activities and amusement and recreation activities144
- 94 Activities of membership organisations109
- 95 Repair and maintenance of computers, personal and household goods, and motor vehicles and motorcycles185
- 96 Personal service activities211
Municipalities with the most companies in the sector · Flanders
- 3600 Genk408
- 1600 Sint-Pieters-Leeuw (Oudenaken, Sint-Laureins-Berchem)347
- 3550 Heusden-Zolder (Heusden, Zolder)331
- 8800 Roeselare (Beveren, Oekene, Rumbeke)325
- 9000 Ghent320
- 9160 Lokeren (Daknam, Eksaarde)316
- 2960 Brecht (Sint-Job-In-'t-Goor, Sint-Lenaarts)270
- 3500 Hasselt (Sint-Lambrechts-Herk)270
- 3530 Houthalen-Helchteren (Helchteren, Houthalen)257
- 2100 Antwerp (Deurne)251
- 1930 Zaventem (Nossegem)250
- 9200 Dendermonde (Appels, Baasrode, Grembergen, …)246
Frequently asked questions
Which company in Specialised construction activities in Flanders 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 1,342 that publish it, out of 36,220 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.
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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 12 Nov 2026.