Ranking · Limburg · NACE 71
Architectural and engineering activities; technical testing and analysis: the largest companies in Limburg (Belgium)
As of 12 Nov 2026, 1,230 companies in Architectural and engineering activities; technical testing and analysis (NACE 71) in Limburg (Belgium) publish total assets in recent accounts (financial years 2023 to 2026). The top 10 account for €234.7m, out of €779.1m for all of them; median total assets are 175,294 €. Patronale Solar leads with €68.0m (financial year 2025).
Top 50 · Architectural and engineering activities; technical testing and analysis · Limburg
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 | Patronale Solar 3550 Heusden-Zolder | €68.0m | — | €10.5m | 6.4 | 2025 |
| 2 | Steengoed Projecten 3650 Dilsen-Stokkem | €28.7m | — | €3.84m | 4.8 | 2025 |
| 3 | Bosal Emission Control Systems 3560 Lummen | €28.2m | €16.4m | €18.3m | 86.4 | 2025 |
| 4 | Herks Metal Design & Development 3540 Herk-de-Stad | €20.6m | — | €14.3m | — | 2025 |
| 5 | Belgium Renewable Investments 3550 Heusden-Zolder | €19.3m | — | −€1.51m | — | 2025 |
| 6 | Hyperfast 3550 Heusden-Zolder | €16.9m | — | −318,587 € | — | 2025 |
| 7 | Solithor 3800 Sint-Truiden | €13.6m | — | €6.94m | 28.4 | 2025 |
| 8 | RSK Benelux 3500 Hasselt | €13.3m | €16.3m | €7.53m | 93.2 | 2026 |
| 9 | Total Safety 3590 Diepenbeek | €13.1m | €21.1m | €6.51m | 166.4 | 2025 |
| 10 | Plastic Omnium New Energies Genk 3600 Genk | €13.0m | — | €3.03m | 53.3 | 2023 |
| 11 | Larsby 3511 Hasselt | €9.69m | — | €9.36m | — | 2025 |
| 12 | A.C.E. Belgium 3560 Lummen | €9.26m | €10.2m | €2.61m | 89.0 | 2025 |
| 13 | Encon 3740 Bilzen-Hoeselt | €8.76m | €13.8m | €1.60m | 73.5 | 2025 |
| 14 | Euro-Stel Services 3770 Riemst | €8.56m | 830,380 € | €7.71m | 2.0 | 2025 |
| 15 | Benvitec Solutions 3582 Beringen | €7.40m | €19.8m | €2.20m | 63.9 | 2025 |
| 16 | Exact Forestall 3600 Genk | €7.06m | €25.2m | €1.62m | 53.9 | 2025 |
| 17 | Ingenieurs-, ontwerp-, en coördinatiebureau STABO 3980 Tessenderlo-Ham | €6.90m | — | 437,252 € | 36.0 | 2025 |
| 18 | Labo Derva 3550 Heusden-Zolder | €6.39m | — | €4.93m | 27.4 | 2025 |
| 19 | Project Pietelbeek 3530 Houthalen-Helchteren | €6.29m | — | €1.07m | — | 2025 |
| 20 | a2o-architecten 3500 Hasselt | €6.22m | — | €2.45m | 2.8 | 2025 |
| 21 | Safety & Maintenance Company 3945 Ham | €5.70m | €6.42m | €1.49m | 61.6 | 2025 |
| 22 | GEOS Laboratories – site Wellen 3830 Wellen | €5.29m | — | €2.09m | 39.5 | 2025 |
| 23 | Debuild 3500 Hasselt | €5.21m | €8.13m | 265,749 € | — | 2025 |
| 24 | macobo 3980 Tessenderlo-Ham | €4.97m | — | 512,329 € | 17.8 | 2025 |
| 25 | Mijnschade en Bemaling Limburgs Mijngebied 3500 Hasselt | €4.83m | 982,729 € | €3.57m | 2.0 | 2025 |
| 26 | Hyve 3600 Genk | €4.54m | — | −€3.74m | 5.0 | 2025 |
| 27 | Environmental Strategical Advice 3500 Hasselt | €3.97m | — | €3.22m | 25.6 | 2026 |
| 28 | Plasmajet Technologies 3560 Lummen | €3.94m | — | €3.94m | — | 2025 |
| 29 | LVD Robotic Solutions 3530 Houthalen-Helchteren | €3.39m | — | 476,145 € | 24.1 | 2025 |
| 30 | Groenergie 3960 Bree | €3.30m | — | €2.23m | — | 2025 |
| 31 | The Energy Group 3740 Bilzen-Hoeselt | €3.24m | — | €2.06m | — | 2025 |
| 32 | Appel Architecten 3570 Alken | €3.18m | — | €2.75m | — | 2025 |
| 33 | Drieskens & Dubois Architecten 3500 Hasselt | €3.15m | — | 547,712 € | 4.0 | 2025 |
| 34 | KT-Rent 3740 Bilzen-Hoeselt | €3.11m | — | €2.85m | 2.0 | 2025 |
| 35 | Charluc 3742 Bilzen-Hoeselt | €3.04m | — | €2.74m | 2.0 | 2025 |
| 36 | Martens K Holding 3600 Genk | €3.03m | — | 678,850 € | — | 2025 |
| 37 | Architectenbureau Michel Janssen 3700 Tongeren-Borgloon | €2.90m | — | €1.30m | 1.4 | 2025 |
| 38 | Breetec 3665 As | €2.86m | — | €1.86m | — | 2025 |
| 39 | Certeso 3545 Halen | €2.82m | — | 905,610 € | 19.7 | 2025 |
| 40 | Lescon 3800 Sint-Truiden | €2.69m | — | €1.75m | — | 2025 |
| 41 | Globezenit 3583 Beringen | €2.67m | — | €1.67m | 30.1 | 2025 |
| 42 | UAUcollectiv 4 Architecture 3500 Hasselt | €2.65m | — | 684,696 € | — | 2025 |
| 43 | Archibo Biologica 3680 Maaseik | €2.60m | — | €1.10m | — | 2025 |
| 44 | dbv-architecten Multiprofessionele Architectenvennootschap 3500 Hasselt | €2.59m | — | €1.07m | 4.8 | 2025 |
| 45 | Rob Gijsenberg 3600 Genk | €2.58m | — | €1.97m | — | 2025 |
| 46 | Alubert 3560 Lummen | €2.57m | 180,000 € | 809,465 € | — | 2025 |
| 47 | PS-Survey 3680 Maaseik | €2.54m | — | €1.39m | 8.4 | 2025 |
| 48 | Membruggen Industrial Company 3770 Riemst | €2.46m | — | 668,588 € | 8.5 | 2025 |
| 49 | Infra-Technieken 3720 Hasselt | €2.44m | — | €2.07m | 1.0 | 2025 |
| 50 | EYWA 3690 Zutendaal | €2.43m | — | €1.12m | 13.2 | 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.
Architectural and engineering activities; technical testing and analysis across Belgium → All sectors · Limburg →
Other sectors · Limburg
- 01 Crop and animal production, hunting and related service activities883
- 02 Forestry and logging32
- 08 Other mining and quarrying33
- 10 Manufacture of food products328
- 11 Manufacture of beverages53
- 13 Manufacture of textiles60
- 14 Manufacture of wearing apparel28
- 16 Manufacture of wood and of products of wood and cork, except furniture; manufacture of articles of straw and plaiting materials199
- 17 Manufacture of paper and paper products17
- 18 Printing and reproduction of recorded media166
- 20 Manufacture of chemicals and chemical products82
- 21 Manufacture of basic pharmaceutical products and pharmaceutical preparations36
- 22 Manufacture of rubber and plastic products101
- 23 Manufacture of other non-metallic mineral products171
- 24 Manufacture of basic metals43
- 25 Manufacture of fabricated metal products, except machinery and equipment801
- 26 Manufacture of computer, electronic and optical products58
- 27 Manufacture of electrical equipment75
- 28 Manufacture of machinery and equipment n.e.c.135
- 29 Manufacture of motor vehicles, trailers and semi-trailers59
- 30 Manufacture of other transport equipment12
- 31 Manufacture of furniture160
- 32 Other manufacturing105
- 33 Repair, maintenance and installation of machinery and equipment309
- 35 Electricity, gas, steam and air conditioning supply112
- 38 Waste collection, recovery and disposal activities110
- 39 Remediation activities and other waste management service activities11
- 41 Construction of residential and non-residential buildings1,432
- 42 Civil engineering360
- 43 Specialised construction activities5,259
- 46 Wholesale trade2,838
- 47 Retail trade3,474
- 49 Land transport and transport via pipelines652
- 51 Air transport25
- 52 Warehousing, storage and support activities for transportation198
- 53 Postal and courier activities69
- 55 Accommodation327
- 56 Food and beverage service activities1,886
- 58 Publishing activities68
- 59 Motion picture, video and television programme production, sound recording and music publishing activities115
- 60 Programming, broadcasting, news agency and other content distribution activities13
- 61 Telecommunication22
- 62 Computer programming, consultancy and related activities2,057
- 63 Computing infrastructure, data processing, hosting and other information service activities372
- 64 Financial service activities, except insurance and pension funding3,204
- 65 Insurance, reinsurance and pension funding, except compulsory social security25
- 66 Activities auxiliary to financial services and insurance activities667
- 68 Real estate activities4,389
- 69 Legal and accounting activities1,436
- 70 Activities of head offices and management consultancy3,343
- 72 Scientific research and development59
- 73 Activities of advertising, market research and public relations806
- 74 Other professional, scientific and technical activities343
- 75 Veterinary activities190
- 77 Rental and leasing activities355
- 78 Employment activities124
- 79 Travel agency, tour operator and other reservation service and related activities63
- 80 Investigation and security activities31
- 81 Services to buildings and landscape activities598
- 82 Office administrative, office support and other business support activities1,076
- 85 Education347
- 86 Human health activities3,564
- 87 Residential care activities57
- 88 Social work activities without accommodation112
- 90 Arts creation and performing arts activities189
- 91 Libraries, archives, museums and other cultural activities16
- 92 Gambling and betting activities10
- 93 Sports activities and amusement and recreation activities399
- 94 Activities of membership organisations40
- 95 Repair and maintenance of computers, personal and household goods, and motor vehicles and motorcycles458
- 96 Personal service activities578
Municipalities with the most companies in the sector · Limburg
- 3500 Hasselt (Sint-Lambrechts-Herk)177
- 3600 Genk82
- 3920 Lommel44
- 3740 Bilzen-Hoeselt (Beverst, Bilzen, Eigenbilzen, …)42
- 3520 Zonhoven41
- 3800 Sint-Truiden (Aalst, Brustem, Engelmanshoven, …)41
- 3550 Heusden-Zolder (Heusden, Zolder)38
- 3530 Houthalen-Helchteren (Helchteren, Houthalen)36
- 3680 Maaseik (Neeroeteren, Opoeteren)36
- 3980 Tessenderlo-Ham (Tessenderlo)36
- 3590 Diepenbeek35
- 3560 Lummen (Linkhout, Meldert)31
Frequently asked questions
Which is the largest company in Architectural and engineering activities; technical testing and analysis in Limburg (Belgium)?
By total assets, it is Patronale Solar (€68.0m, financial year 2025).
How many companies in Architectural and engineering activities; technical testing and analysis in Limburg (Belgium) are ranked?
1,230 out of 1,248 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 12 Nov 2026.