Check a Swedish company by API: Bolagsverket

Bolagsverket · not covered yet · checked 11 November 2026

The official route

Bolagsverket holds the Swedish company register. It offers a free API for high-value datasets ("API för värdefulla datamängder"). This is what we recorded on 2026-11-09:

You sign up with a form called "Kundanmälan", which asks for an e-mail address and a mobile number.
You get a test environment first.
The limit is 60 calls a minute.
It should give the register status of a company, and annual accounts filed as iXBRL from 2020 on.

We have not found the licence text. We'll ask Bolagsverket for it before we use the API in production, so we can't tell you yet what the reuse terms are.

Where it gets hard

There is a queue. We sent the form on 2026-11-09 and are waiting for test credentials. Bolagsverket's own notice says it is busy.
On an earlier check, Bolagsverket's page about these datasets showed a CAPTCHA to our fetch tool, so we could not read its terms by script.
Without the register you fall back on the LEI record, and that can be stale. On 2026-11-09 our own check returned "active" for Northvolt AB, which has been bankrupt since March 2025. The status came from a lapsed LEI record. We have since changed the check: an "active" on an LEI that is not renewed now comes back as review and says the national register was not read.

One call

Bosco Labs does not read the Swedish register yet. A counterparty-check call for a Swedish company works today, with these sources:

Check	Source for this country
Register status	The LEI record (GLEIF), only for companies that have an LEI
Insolvency	Unverified: no source for Sweden
Recent accounts	ESEF annual reports, listed companies only
VAT number	VIES
IBAN	ISO 13616 check digits
Company on sanctions lists	OFAC, UN, UK, EU and US export lists

If you need the Swedish register itself, mail support@boscolabs.dev. Requests decide which register we add next.

What we do not cover

Bolagsverket's register status, so a bankruptcy can be missed.
Board members and owners of Swedish companies.
Accounts of unlisted Swedish companies.
A Swedish company without an LEI is not found at all.

Sources

Bosco Labs does not read this register yet. Need it? Tell us: requests decide the order.

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