Look up by organisation number
Exact, never fuzzy: name, organisation form, industry codes, addresses, employees, registrations and former names, for one number or many.
MCP connector for Claude and other AI assistants
The Norwegian company register in your AI assistant
Ask about any Norwegian organisation in plain language. Brreg gives your assistant Enhetsregisteret — lookup by organisation number, search, name resolution and structure — with key financials when you ask for them.
MCP address
https://brreg.publifye.com/mcp
Who is 983887457?
The assistant calls entity_lookup
orgnrnamehistorical_namesorg_formnacebusiness_addressemployees
Here is the record from Enhetsregisteret: name, organisation form, industry, addresses and former names, with the source and licence attached.
What you get
Enhetsregisteret, as tools your assistant can use
Six read-only tools over the register, each answering with the source attached. Your assistant picks the right one from your question.
Search by name, address or place
Ranked search over current and former names, addresses and websites, filtered by municipality, organisation form, industry, size or public bodies.
Resolve a name to the right organisation
Turns a name — including spelling variants and former names — into ranked candidates, and says when it is ambiguous instead of guessing.
See the structure
Parent organisations up to the top, agencies under a ministry, and the sub-units where a company actually operates.
Key financials, when you ask
Key figures from the latest annual accounts in Regnskapsregisteret, fetched only on explicit request and labelled with their year.
Codes and filters explained
Organisation forms, municipalities, industry codes and sectors with counts, so a question like “limited companies in Bergen” becomes an exact filter.
How it works
Connected in a few minutes
Brreg works wherever your assistant supports remote MCP connectors, such as Claude on the web, Claude Desktop and Claude Code.
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Get access
Create a Publifye account and choose a Brreg plan.
Choose Personal or Business with your Publifye account.
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Add the connector
In Claude, open Settings, then Connectors, and add a custom connector with this address:
https://brreg.publifye.com/mcp -
Sign in with Publifye
Your assistant opens the Publifye sign-in. Approve access once; there is no API key to copy or store.
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Ask
Ask about Norwegian organisations in your own language. The assistant picks the right tools and answers with the source.
Examples
Ask like you would ask a colleague
What you type, and what the assistant does with Brreg behind the scenes.
“Who is 983887457?”
Looks up the organisation number and answers with the ministry’s name, organisation form, industry, addresses and former names.
entity_lookup
“Find the company called Equinor ASA and show its key figures for the latest year”
Resolves the name to one organisation number, then looks it up with key financials from the latest filed annual accounts.
entity_resolveentity_lookup
“Which sub-units does Arbeidstilsynet have?”
Finds Arbeidstilsynet by name and lists the sub-units registered under it.
entity_resolveentity_structure
“Which ministry used to be called Arbeids- og sosialdepartementet?”
Matches the former name and shows the organisation it belongs to today, with the years each name was used.
entity_resolve
“List limited companies in Bergen with industry code 62.010”
Finds the codes for the organisation form and the municipality, then runs a filtered search and pages through the results.
code_listentity_search
“How fresh is the register data?”
Reports when the data was last refreshed from Brønnøysundregistrene and whether it is current.
snapshot_status
Who it is for
For anyone who checks Norwegian organisations
Accountants
Confirm client details, organisation forms and filed accounts in the middle of your work.
Sales and CRM
Clean up customer lists: right name, right number, still active.
Due diligence
Check structure, status flags such as bankruptcy or dissolution, and key figures before you sign.
Journalists
Trace former names and who sits under whom, with the source cited.
Developers
A typed, paged MCP interface with structured errors instead of scraping.
Built to be trusted
Open data, handled with care
Source and licence on every answer
Every result names Brønnøysundregistrene and carries the NLOD attribution, so your assistant can cite it.
Not the official register
Brreg is an independent service on open data. For anything legally binding, check virksomhet.brreg.no.
No register of persons
Organisations only: no roles, no board members, and personal details held back for sole proprietorships.
Removals honoured within 24 hours
When Brønnøysundregistrene removes an entry from open data, it disappears from Brreg within a day.
Questions
Frequently asked
What is Brreg?
Brreg is an MCP connector that lets Claude and other AI assistants look up, search and resolve Norwegian organisations in Enhetsregisteret, the register kept by Brønnøysundregistrene, and fetch key financials from Regnskapsregisteret when you ask for them.
How do I connect it?
Add a custom connector in your assistant with the address https://brreg.publifye.com/mcp and sign in with your Publifye account. Access is through that sign-in only; there is no API key to copy or keep safe.
Can I look up people or roles?
No. Brreg covers organisations only. It has no roles, no board members and no register of persons, and it holds back personal details for sole proprietorships.
Where do the key financials come from?
From the latest annual accounts filed with Regnskapsregisteret. They are fetched only when you ask for them and always shown with the year they belong to.
Is this the official register?
No. Brreg serves open data from Brønnøysundregistrene under the Norwegian Licence for Open Government Data (NLOD). For anything legally binding, check the official record at virksomhet.brreg.no.
Give your assistant the register
Add the connector, sign in with Publifye and ask your first question.