SBI F 41 · F 42 · F 43
Contractors, project developers, civil engineering firms, electrical and plumbing installers, carpentry, painting and finishing firms – for wholesalers, manufacturers and software vendors that want to reach the firms of one trade in a region.
Our database holds 535,638 records (as of 4 November 2026); they are not yet assigned to an industry, so there are no counts of our own per industry yet. For your request we confirm the scope and data date in advance.
Export of the whole industry: €469 (final price). Selections by province, municipality or your own filters are quoted individually.
Official statistics: 271,835 businesses in the Netherlands according to CBS StatLine, table 81589NED “Bedrijven; bedrijfstak” (reference date 1 October 2026 (provisional), table updated 15 October 2026). Section F construction: general construction and project development (41), civil engineering (42) and specialised trades such as installers and finishing (43). This is the size of the market, not the size of our database.
Construction is SBI section F with three divisions: general construction and project development (41), civil engineering (42) and specialised construction (43). CBS counts 271,835 construction businesses (1 October 2026); more than 230,000 of them are natural persons, mostly self-employed tradespeople without staff.
Installation firms fall under 43.2, carpentry, painting and plastering firms under 43.3. You can exclude project developers (41.1) if you only want firms that carry out the work. That is possible once the source provides the SBI code; the current records have no SBI code yet.
| SBI 2008 | CBS description | For your selection |
|---|---|---|
| 41.1 | Project development (Projectontwikkeling) | developers of building projects; often without their own construction work |
| 41.2 | General building construction (Algemene B&U-bouw) | contractors for housing and commercial buildings |
| 42 | Civil engineering (Grond-, water- en wegenbouw) | roads, rail, pipelines, hydraulic engineering |
| 43.21 | Electrical installation (Elektrotechnische bouwinstallatie) | electrical installers |
| 43.22 | Plumbing and heating installation (Loodgieters en installatiebedrijven) | plumbers, heating and air-conditioning installers |
| 43.3 | Building completion (Afwerkingsbedrijven) | carpentry, painting, glazing, plastering and tiling firms |
Construction has no general licence register of the kind that exists for lawyers. There are certificates and accreditations you can check company by company.
These 15 columns are included.
In the statistics a company has one main activity. An installer who also renovates bathrooms and fits solar panels is classified under 43.22 – not under tiling or electrical work as well. Filtering by SBI code therefore gives the firms with that main activity, not every firm that offers the service.
The region follows the business address. A contractor from Woerden also works in Utrecht and The Hague but counts for the province of Utrecht. For sales territories along a provincial border it pays to include the neighbouring municipalities.
Many construction businesses are sole traders. Their data is personal data, and calling them requires their prior consent. Construction firms that are a bv can be approached on business matters.
We sell heat pumps through specialist dealers and are looking for installation firms with main activity 43.22 in Overijssel and Gelderland, bvs with a phone number only. How many records are there and what is the data date?
Use cases
Field sales planning: firms of one trade per municipality, sorted by postcode.
Invitations to product demonstrations and training by post to specialist firms.
Estimate the market per trade and province before staffing a sales territory.
An overview of construction and installation firms in a region.
Questions
In the SBI, yes. Selection by SBI class (for example 43.21) and province or municipality is possible once the source provides the SBI code; the current records have no SBI code yet. It covers firms with that main activity; if the classification is missing or unclear, we tell you before the quotation.
CBS counts 271,835 construction businesses, most of them self-employed people without staff (natural persons). If you want firms with employees, choose the legal form bv or a website as a mandatory field. The legal form as a filter is only possible once the source provides that field; the current records have no legal form yet.
You may call a construction bv on business matters. Sole traders and general partnerships only with their prior consent (Article 11.7(2) of the Telecommunications Act). The “legal entity” column in the export makes that distinction visible. That column is only filled where the source provides the legal form; the current records have no legal form yet.
271,835 businesses in the Netherlands according to CBS StatLine, table 81589NED “Bedrijven; bedrijfstak” (reference date 1 October 2026 (provisional), table updated 15 October 2026). Section F construction: general construction and project development (41), civil engineering (42) and specialised trades such as installers and finishing (43). This is an official statistic, not the size of our dataset.
Format, sources, price and the rules for email and phone (Dutch Telecommunications Act): questions about all industries.
