Specialised construction activities: highest revenue in Limburg (Belgium)
As of 14 Nov 2026, 137 companies in Specialised construction activities (NACE 43) in Limburg (Belgium) publish their revenue in recent accounts (financial years 2023 to 2026). The top 10 account for €509.3m, out of €1.09bn for all of them; median revenue is 662,535 €. Jansen Building Projects leads with €88.6m (financial year 2025).
Top 50 · Specialised construction activities · Limburg
Ranked by revenue published in the latest filed accounts (accounts less than 3 years old).
| # | Company | Total assets | Revenue | Equity | FTE | Year |
|---|---|---|---|---|---|---|
| 1 | Jansen Building Projects 3670 Oudsbergen | €43.9m | €88.6m | €4.72m | 114.4 | 2025 |
| 2 | Renewi Belgium 3920 Lommel | €38.9m | €68.0m | €8.22m | 74.6 | 2026 |
| 3 | Circet Belgium 3583 Beringen | €32.7m | €60.2m | €19.9m | 365.9 | 2025 |
| 4 | Group Ceyssens 3550 Heusden-Zolder | €26.7m | €51.0m | €9.35m | 74.6 | 2025 |
| 5 | Zolderse Dakprojecten 3560 Lummen | €16.8m | €47.3m | €7.06m | 97.1 | 2025 |
| 6 | The Energy Circle 3500 Hasselt | €19.3m | €43.8m | €3.59m | 171.9 | 2025 |
| 7 | Insaver 3530 Houthalen-Helchteren | €22.7m | €42.6m | €9.97m | 35.9 | 2025 |
| 8 | CKS 3650 Dilsen-Stokkem | €21.6m | €37.5m | €5.63m | 93.1 | 2025 |
| 9 | P.V.S. 3512 Hasselt | €33.4m | €36.4m | €19.4m | 48.6 | 2025 |
| 10 | Opteco 3520 Zonhoven | €12.7m | €33.9m | €1.52m | 24.6 | 2026 |
| 11 | Jansen Cleanrooms & Labs 3670 Oudsbergen | €14.1m | €30.5m | €3.67m | 59.4 | 2024 |
| 12 | Poels 3545 Halen | €10.6m | €27.6m | €5.49m | 42.7 | 2025 |
| 13 | Jansen Energy Solutions 3550 Heusden-Zolder | €12.2m | €24.5m | 221,295 € | 74.0 | 2025 |
| 14 | Polydak 3920 Lommel | €8.08m | €23.9m | €2.44m | 38.7 | 2025 |
| 15 | Energreen 3700 Tongeren-Borgloon | €14.5m | €22.3m | €9.14m | 16.3 | 2025 |
| 16 | Baldewijns 3583 Beringen | €12.8m | €22.1m | €4.29m | 53.1 | 2025 |
| 17 | Lenaerts 3530 Houthalen-Helchteren | €12.7m | €20.7m | €10.1m | 47.7 | 2025 |
| 18 | De Coster Dominique 3530 Houthalen-Helchteren | €12.2m | €20.3m | €5.46m | 29.4 | 2025 |
| 19 | Varel Security 3511 Hasselt | €13.1m | €20.1m | 97,166 € | 82.2 | 2025 |
| 20 | Berkmans 3920 Lommel | €13.7m | €18.5m | €4.43m | 35.9 | 2025 |
| 21 | Keukenontwerpers 3500 Hasselt | €7.46m | €17.5m | €3.69m | 25.4 | 2025 |
| 22 | Vanstraelen Sprinkler + Piping 3720 Hasselt | €13.9m | €17.3m | €12.1m | 28.4 | 2025 |
| 23 | Mourik Technics 3500 Hasselt | €10.8m | €16.7m | €1.89m | 47.2 | 2025 |
| 24 | Gert Kwanten Tuinaanleg 3910 Pelt | €7.18m | €16.2m | €2.22m | 57.6 | 2025 |
| 25 | Deholi 3530 Houthalen-Helchteren | €5.07m | €14.7m | €1.50m | 28.1 | 2025 |
| 26 | Woutim 3990 Peer | €6.79m | €14.2m | €3.96m | 55.7 | 2025 |
| 27 | Tectum Roofcomfort 3600 Genk | €9.10m | €14.1m | €4.91m | 31.4 | 2025 |
| 28 | ABN Klimatisatie 3740 Bilzen-Hoeselt | €9.21m | €13.2m | €6.63m | 44.2 | 2025 |
| 29 | E. Baillien 3630 Maasmechelen | €20.0m | €12.7m | €16.7m | 67.2 | 2025 |
| 30 | Stokjes 3980 Tessenderlo-Ham | €8.40m | €12.6m | €1.30m | 60.9 | 2025 |
| 31 | Afwerkingsbedrijf Coenen 3650 Dilsen-Stokkem | €6.78m | €12.0m | €1.37m | 1.5 | 2025 |
| 32 | Electriciteitswerken Gielen 3920 Lommel | €6.34m | €11.9m | €4.21m | 30.0 | 2025 |
| 33 | Centrale Verwarming - Sanitair Peeters en Zonen 3960 Bree | €5.70m | €11.3m | €2.27m | 53.9 | 2025 |
| 34 | Veldeman Oost 3660 Oudsbergen | €5.42m | €10.7m | €1.99m | 9.1 | 2025 |
| 35 | ALU2+ 3800 Sint-Truiden | €4.07m | €10.5m | 986,922 € | 13.2 | 2024 |
| 36 | Vranken 3850 Nieuwerkerken (Limb.) | €6.64m | €10.2m | €4.04m | 26.5 | 2025 |
| 37 | Ateliers Doumen Kinrooi 3640 Kinrooi | €6.97m | €9.80m | €5.63m | 14.9 | 2025 |
| 38 | Jos Reynders Decor 3980 Tessenderlo-Ham | €3.81m | €9.15m | €1.61m | 14.7 | 2025 |
| 39 | D-Watt 3500 Hasselt | €3.58m | €8.94m | 13,459 € | — | 2025 |
| 40 | B-Stuc 3740 Bilzen-Hoeselt | €3.78m | €8.56m | €2.34m | 4.5 | 2025 |
| 41 | Futech 3980 Tessenderlo | €12.2m | €7.72m | €5.42m | 21.8 | 2025 |
| 42 | Isolatec 3500 Hasselt | €11.6m | €7.13m | €11.1m | 11.0 | 2025 |
| 43 | Heras Hekwerk 3900 Pelt | €4.22m | €6.95m | €3.22m | 2.0 | 2025 |
| 44 | Polydak II 3920 Lommel | €2.55m | €6.21m | €1.20m | 22.6 | 2026 |
| 45 | Inter Systems 3600 Genk | €3.26m | €5.14m | €1.72m | 21.6 | 2025 |
| 46 | Boflex 3500 Hasselt | €2.15m | €4.96m | €1.67m | 17.9 | 2025 |
| 47 | Tectum Plus 3600 Genk | €3.17m | €4.89m | −€1.37m | 13.9 | 2025 |
| 48 | General Installations & Technical Services 3700 Tongeren-Borgloon | €1.28m | €4.15m | 619,567 € | 16.7 | 2025 |
| 49 | A. Keulen 3620 Lanaken | €1.89m | €3.89m | 402,278 € | 12.9 | 2025 |
| 50 | Verwarming & Sanitair Erens 3740 Bilzen-Hoeselt | €3.22m | €3.85m | €2.82m | 10.3 | 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 · Limburg →
Other sectors · Limburg
- 01 Crop and animal production, hunting and related service activities33
- 10 Manufacture of food products44
- 18 Printing and reproduction of recorded media14
- 20 Manufacture of chemicals and chemical products29
- 22 Manufacture of rubber and plastic products29
- 23 Manufacture of other non-metallic mineral products31
- 24 Manufacture of basic metals11
- 25 Manufacture of fabricated metal products, except machinery and equipment74
- 26 Manufacture of computer, electronic and optical products10
- 27 Manufacture of electrical equipment10
- 28 Manufacture of machinery and equipment n.e.c.16
- 29 Manufacture of motor vehicles, trailers and semi-trailers13
- 31 Manufacture of furniture11
- 35 Electricity, gas, steam and air conditioning supply44
- 38 Waste collection, recovery and disposal activities33
- 41 Construction of residential and non-residential buildings75
- 42 Civil engineering16
- 46 Wholesale trade244
- 47 Retail trade182
- 49 Land transport and transport via pipelines62
- 52 Warehousing, storage and support activities for transportation21
- 55 Accommodation16
- 56 Food and beverage service activities28
- 62 Computer programming, consultancy and related activities51
- 64 Financial service activities, except insurance and pension funding193
- 68 Real estate activities131
- 69 Legal and accounting activities28
- 70 Activities of head offices and management consultancy103
- 71 Architectural and engineering activities; technical testing and analysis29
- 73 Activities of advertising, market research and public relations18
- 77 Rental and leasing activities25
- 78 Employment activities16
- 81 Services to buildings and landscape activities32
- 82 Office administrative, office support and other business support activities38
- 85 Education88
- 86 Human health activities45
- 87 Residential care activities29
- 88 Social work activities without accommodation27
- 90 Arts creation and performing arts activities10
- 93 Sports activities and amusement and recreation activities13
- 95 Repair and maintenance of computers, personal and household goods, and motor vehicles and motorcycles27
- 96 Personal service activities16
Municipalities with the most companies in the sector · Limburg
- 3600 Genk407
- 3550 Heusden-Zolder (Heusden, Zolder)331
- 3500 Hasselt (Sint-Lambrechts-Herk)270
- 3530 Houthalen-Helchteren (Helchteren, Houthalen)257
- 3520 Zonhoven178
- 3800 Sint-Truiden (Aalst, Brustem, Engelmanshoven, …)175
- 3630 Maasmechelen (Eisden, Leut, Mechelen-Aan-De-Maas, …)165
- 3920 Lommel162
- 3740 Bilzen-Hoeselt (Beverst, Bilzen, Eigenbilzen, …)153
- 3680 Maaseik (Neeroeteren, Opoeteren)147
- 3582 Beringen (Koersel)138
- 3700 Tongeren-Borgloon (Berg, Diets-Heur, Haren, …)134
Frequently asked questions
Which company in Specialised construction activities in Limburg (Belgium) has the highest revenue?
Jansen Building Projects, with €88.6m 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 137 that publish it, out of 5,422 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 · Limburg
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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.