Comparison

Company databases compared: which source fits your purpose?

There are very different sources for company data: from the official register through statistics to subscription platforms and one-off exports. Which source fits depends on what you want to do.

As of 25 October 2026 · by Martin Adamec

In brief

  • To check individual companies, the KVK business register is the right source.
  • For market size, official statistics are the best source, but they do not name individual companies.
  • A one-off export suits one campaign; a subscription platform suits ongoing prospecting with contact persons.
  • No source provides consent for email marketing.

Which source for which purpose

Orientation per project. Not legal advice.
You want to …Suitable source
Check individual business partnersThe KVK business register: official and searchable per company. You do not need a list for that.
Estimate market sizeOfficial statistics. The figure per industry is on our industry pages, the breakdown by province under statistics.
A postal campaign or phone outreach to bvs in an industry and regionOne-off export or purchased list. Have the number of records with the required field and the legal form confirmed in advance.
Ongoing prospecting with contact persons and CRM integrationSubscription sales platform. Check term, quotas and export rights.
Newsletters or email marketingNo list solves this: unsolicited commercial email requires prior consent, also for legal entities (Article 11.7 Telecommunications Act), unless the address was published for that purpose.

The sources at a glance

Scroll the table sideways.

Types of sources for company data in the Netherlands. Describes typical characteristics; individual suppliers may differ. Legal bases: Art. 11.7 Telecommunications Act, Art. 3:15d Dutch Civil Code, consulted on 25 October 2026.
SourceWhat you getCost modelStrengthLimits
KVK business registerKVK number, trade name, legal form, address, SBI code and officers of registered businesses and legal entitieslook-up on kvk.nl; extracts and data files (KVK Dataservice, API) are paidofficial and current; the right source to check individual business partnersno phone numbers, email addresses or websites; terms of use and the Non-Mailing Indicator apply to files obtained; home addresses are shielded
Official statistics (CBS, Eurostat)number of businesses by industry, region, legal form and sizefree, open datathe best basis for estimating the size of a marketaggregated figures only, no individual companies
Official industry registerslicences and registrations, for example in the BIG register, the AFM registers or the Architects’ Registerusually freeshows authoritatively whether a person or business is authorised or recognisedmeant for look-ups, not as an address list; often people rather than companies
Online business directorieslistings that companies create or pay for themselves: name, address, often phone and websitesearching is freegood for finding individual suppliers in a regioncompleteness depends on who signs up; whether reuse is allowed is set by the directory’s terms
Subscription sales platformssearch interface with filters, often with contact persons, financial indicators and CRM integrationusually a monthly or annual licence per user, exports via quotas or creditsfor ongoing sales work with several users and a regular need for new prospectsterm and quotas bind you; the contract determines what may be exported and reused
List brokersready-made lists by industry and region, for purchase or rentalprice per list or per address; with rental, use for agreed mailingsquickly available for postal campaignswith rented addresses a mailing house often receives the data instead of you; source and data date are not always stated
Your own research on websitescontact details and KVK number that companies state on their website (Article 3:15d Dutch Civil Code)costs working time instead of moneyyou know exactly where each data point comes fromtime-consuming for more than a few dozen companies; for sole traders the data is personal data (GDPR)
One-off export by industry and region (contactendatabase.nl’s approach)a file with fixed columns (15 at contactendatabase.nl), selected by industry, region and mandatory fields (by legal form once the source provides that field)fixed price per industry or quotation per selection, no subscriptionyou pay once for a clearly defined target group and work in your own Excel or CRMno ongoing access; no contact persons; the Dutch database so far relies on one source (Overture Maps), we state scope and data date per quotation

More about the register: the KVK business register: what is public? and data sources and methodology. The registers per industry are on the industry pages.

What to check with every supplier

  1. Source per column. Where does the address come from, where the phone number? “From various sources” is not an answer.
  2. Data date as a date. Companies are constantly being started and closed; how quickly is shown on start-ups and closures.
  3. Count for your selection. What matters is not the total size of the database, but how many records in your industry and region have the field you need.
  4. Legal form. Can you tell legal entities from sole traders? For phone outreach in the Netherlands that is decisive.
  5. Sample file. You see columns, spelling and empty fields before buying.
  6. Usage rights and Non-Mailing Indicator. Purchase or rental, sharing with service providers, period of use, and how addresses with an NMI are handled.
  7. Price per usable record. Divide the price by the records you can actually use; how is explained under pricing.

Where contactendatabase.nl fits, and where it does not

contactendatabase.nl supplies company data as a one-off export by industry and region, with 15 fixed columns from company identity and legal form to phone, email and website; legal form, KVK number and SBI code are only filled where the source provides them, and the current records do not have them yet. That fits if you need a clearly defined target group once and continue working with it yourself, in your CRM, for direct mail or for phone outreach to legal entities.

It does not fit if you are looking for contact persons with name and position, research new prospects daily or want data updated directly in your CRM. Subscription platforms are built for that. And it does not fit email marketing without consent.

Good to know: on 4 November 2026 the Dutch database held 535,638 records from Overture Maps; its status is on database status, the price for the export of a whole industry under pricing. We state scope, data date and price of a selection in the quotation.

Frequently asked questions

Is there a free company database for the Netherlands?

For individual look-ups, yes: basic data of a company can be viewed free of charge on kvk.nl. But no government body offers a complete, free list with contact details that can be filtered by industry and region and downloaded. KVK files are paid and subject to terms of use.

Why do you not name suppliers and prices?

Because prices and services change often and we are a supplier ourselves. A comparison of competitors by us would not be neutral. This page therefore describes types of sources; with the checks in buying Dutch company data: eight checks you can compare concrete offers yourself.

How many businesses are there in the Netherlands?

According to CBS, 2,450,355 businesses on 1 October 2026 (provisional figure), of which 1,862,975 natural persons. No company database contains phone and email for all of them, so ask for the number of records with the field you need.

What is better: a subscription or a one-off export?

It depends on how often you need new prospects. For one campaign or a clearly defined market a one-off export is usually simpler: one price, one file. If you search daily, work with several users and need contact persons, a subscription platform fits better.

This page offers general orientation and does not replace legal advice.

Does a one-off export fit your project?

Name the industry, the region and the fields you need. We tell you what can be delivered and state scope and price before you order.

Request a quotation · Sample file · Industries in the Netherlands