Company registry tool for journalists
Search, export and investigate company patterns in official register data
This tool gives you direct access to the Swedish Companies Registration Office (Bolagsverket) register. Search individual companies, analyse address patterns, export to CSV and follow up at the source. No login required.
What you can do
Quick company search
Search by organisation number, company name, or part of name. Results show company type, status, address, registration date, board members and links to the EU VAT registry (VIES).
Search individual companies →Batch search for up to 100 companies
Paste a list of organisation numbers and retrieve combined company data in one step. Results can be exported as CSV with source rows and date.
Open batch search →Address clusters: national ranking
See which addresses in Sweden have the most registered companies. The ranking can be filtered by company type and sorted by number of active companies, all companies or latest registration year. Click an address to see all companies registered there.
Address clusters: national ranking →Companies at the same address
Search directly on a street address, city or postal code to see which companies are registered at that exact address. Results are grouped by address and can be exported.
Companies at the same address →Address network
Visualise connections between companies sharing an address in an interactive network diagram. The network reveals clusters and possible structural relationships that are hard to see in table form.
Open address network →CSV export
All result views can be exported as CSV with organisation number, name, status, company type, registration year, address, city and postal code. Export files are named with search term and date for reproducibility.
What the tool does not prove
Several companies sharing an address is not evidence of ownership, control, wrongdoing or company relationships. Legitimate explanations include accountants or law firms administering client registrations, coworking spaces, P.O. box providers and corporate structures.
- A shared address does not prove ownership or control.
- A high number of companies at one address is a research signal, not a factual claim.
- The tool searches the Bolagsverket register, not other data sources.
- Data is updated continuously but may be a few days behind a register change.
- VIES checks are an external dependency and may be temporarily unavailable.
How to cite data
When publishing data retrieved from this tool, state the source clearly:
Source: Swedish Companies Registration Office (Bolagsverket) via mackan.eu/tools/bolagsverket (retrieved [date]).
Always verify critical information directly in Bolagsverket's own services before publication.
Frequently asked questions
Is the tool free to use?
Yes. The tool is free and requires no registration. Data comes from the Swedish Companies Registration Office, which is open by law.
How current is the data?
Individual company searches retrieve real-time data directly from the Bolagsverket API. Address clusters and address patterns are based on an indexed database updated regularly.
Can I use the data in published material?
Yes, but cite the source correctly and verify critical facts in Bolagsverket's own services. The Swedish company register is a public document available for journalistic scrutiny.
What is the difference from searching on bolagsverket.se?
This tool adds batch search, address analysis, network graph and CSV export not available in Bolagsverket's standard search. The source is the same: the official Swedish Companies Registration Office register.