Search the most extensive database of construction specialists in Europe

We have collected more than 64,363 Dutch construction specialists in our handy overview.

Advanced search

Trends & Statistics
Who we serve

Online collaboration starts with 12Build

From main contractors to construction cost estimators and from clients to construction specialists: We connect everyone through our platform.


Providing transparency in the construction industry together

Our mission is to connect everyone in the sector with one another and thus make the construction industry better and more transparent. The 12Build Community does that together. Now and in the future.


Our cloud solutions


As a construction specialist, be found more easily by main contractors in our database.

More information

Find your ideal match in the largest database of construction specialists in Europe.

More information

Maintain the high quality of the database for yourself and others: review construction specialists.

More information
Stay informed