Look Up Dutch Business Addresses by Postal Code
Find registered business addresses by postal code, city, or company name. Verified address data from the Dutch Chamber of Commerce for logistics, delivery, and property platforms.
Incomplete or wrong business addresses cause costly errors
For logistics companies, delivery services, and property platforms, accurate business addresses are essential. But Dutch business addresses are not always straightforward. Companies may operate from a different address than their registered one. Postal codes follow a specific format (four digits plus two letters). And many businesses share addresses in office buildings or business parks.
Generic address databases do not distinguish between residential and business addresses, and they cannot tell you which company operates at a given location. When you need to deliver to or verify a business address in the Netherlands, you need data from the official KVK registry.
International platforms face an additional challenge: Dutch address formatting. Street names can be long, house numbers may include letter suffixes, and postal code formats differ from most other countries. Getting this wrong means failed deliveries, returned mail, and frustrated customers.
Search businesses by postal code, city, or address
The KVKBase API lets you search for Dutch businesses by postal code, city, street name, or any combination. Every result returns the company's registered address along with its full business profile -- name, KVK number, legal form, and industry codes.
# Find all businesses at a specific postal code
curl -X GET "https://api.kvkbase.nl/v1/search?postcode=1015AA" \
-H "Authorization: Bearer YOUR_API_KEY"
# Response:
# {
# "results": [
# {
# "kvk_nummer": "12345678",
# "naam": "Acme B.V.",
# "adres": {
# "straat": "Keizersgracht 123",
# "postcode": "1015 AA",
# "plaats": "Amsterdam",
# "huisnummer": "123"
# },
# "rechtsvorm": "Besloten Vennootschap",
# "sbi_codes": ["6201"]
# },
# ...
# ],
# "total": 15
# }You can also look up a specific company by KVK number to get its registered address, or search by company name combined with a city to find businesses in a specific area.
// Find logistics companies in Rotterdam
const resp = await fetch(
"https://api.kvkbase.nl/v1/search?plaats=Rotterdam&sbi=5229",
{ headers: { "Authorization": `Bearer ${API_KEY}` } }
);
const data = await resp.json();
// Each result includes the full registered address
data.results.forEach(company => {
console.log(
`${company.naam}: ${company.adres.straat}, ` +
`${company.adres.postcode} ${company.adres.plaats}`
);
});Why logistics and delivery teams choose KVKBase
Official registered addresses
Every address comes from the Dutch KVK registry. No guessing, no outdated data. The address is what the company officially registered with the Chamber of Commerce.
Postal code search
Search by Dutch postal code (e.g., 1015AA) to find all businesses registered at that location. Useful for route planning and delivery verification.
Structured address data
Addresses are returned in structured fields: street, house number, postal code, and city. No parsing needed -- map directly to your address fields.
Combine with company data
Every address lookup includes the full company profile. Know exactly which business you are delivering to, including their industry and legal form.
Find Dutch business addresses in three steps
Search by location
Enter a postal code, city name, or street address. The API returns all businesses registered at or near that location.
Get structured results
Each result includes the full address broken into street, house number, postal code, and city. Plus the company name, KVK number, and industry codes.
Use in your workflow
Feed the structured address data into your route planner, delivery system, or CRM. No manual formatting or data cleanup needed.
Find any Dutch business address
Start with 100 free lookups per month. No credit card required. Structured address data ready for your systems.
Get started free