Through SBI class 71.11; interior architects (71.112) can then be requested separately or excluded. Such a selection by SBI code is only possible once the source provides the field; the current records have no SBI code yet.
SBI M 71
Architectural practices, interior architects, urban designers, structural engineers, building services consultants, engineering and consultancy firms and testing and inspection services – for building product manufacturers, software vendors and training providers.
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: €429 (final price). Selections by province, municipality or your own filters are quoted individually.
Official statistics: 57,175 businesses in the Netherlands according to CBS StatLine, table 81589NED “Bedrijven; bedrijfstak” (reference date 1 October 2026 (provisional), table updated 15 October 2026). SBI 71 architectural and engineering activities and technical testing; of these, 6,865 architectural and 47,540 engineering firms. This is the size of the market, not the size of our database.
The industry is SBI division 71. CBS counts 57,175 businesses (1 October 2026): 6,865 architectural practices, 47,540 engineering firms and 2,770 testing and inspection services.
Engineering firms are a very diverse group: structural engineers, building services and environmental consultants, but also many self-employed technical advisers. The subclass and the legal form help to narrow down the list. That is only possible once the source provides these fields; the current records have no SBI code and no legal form yet.
| SBI 2008 | CBS description | For your selection |
|---|---|---|
| 71.11 | Architectural activities (Architectenbureaus) | architects (71.111) and interior architects (71.112) |
| 71.12 | Engineering activities (Ingenieursbureaus) | structural, building services, civil and environmental consultancy |
| 71.2 | Technical testing and analysis | technical inspections, laboratories, certification |
There is a statutory register for architects; engineers have none.
These 15 columns are included.
The Architects’ Register lists people with their title. The export contains practices with their company data. For a campaign to practices the export is suitable; to find out whether a practice employs a registered architect, check the register.
Many architects and consultants work as self-employed professionals. For phone outreach the consent rule applies to sole traders; practices that are a bv can be called on business matters.
We are launching a new facade system and are looking for architectural practices (SBI 71.11) and structural engineering firms (71.12) in North Holland and Utrecht. How many firms are there and what does the selection cost?
Use cases
Inform architects and engineers about new products and specification.
Offer BIM, drawing and calculation software by region.
Promote courses and continuing education to practices.
Know the consultancies in the region as a source of projects.
Questions
Through SBI class 71.11; interior architects (71.112) can then be requested separately or excluded. Such a selection by SBI code is only possible once the source provides the field; the current records have no SBI code yet.
No. The Architects’ Register is a register of people. The export contains company data of practices; you check a person’s registration in the register yourself.
You may call practices that are a bv on business matters. Self-employed architects with a sole tradership only with their prior consent.
57,175 businesses in the Netherlands according to CBS StatLine, table 81589NED “Bedrijven; bedrijfstak” (reference date 1 October 2026 (provisional), table updated 15 October 2026). SBI 71 architectural and engineering activities and technical testing; of these, 6,865 architectural and 47,540 engineering firms. 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.