Finding companies in Norway: registers, data and prospecting

Where Norwegian company data comes from

Almost everything you need to identify a Norwegian company starts at Brønnøysundregistrene (the Brønnøysund Register Centre). Its central register, Enhetsregisteret (the Central Coordinating Register for Legal Entities), assigns each registered entity an organisation number and holds the core facts: name, legal form, addresses, industry code, municipality, registration date, status and, for many entities, the number of employees and the roles (board, chief executive).

Brønnøysund publishes this as open data through a free API and downloadable files, under the Norwegian Licence for Open Government Data (NLOD 2.0). In practice that means you can search the register yourself, download it in bulk and reuse the data commercially, as long as you follow the licence terms.

The organisation number is the key

The organisation number (organisasjonsnummer) has nine digits, and the last digit is a check digit. It is the key used across Norwegian public registers, so it is the safest way to match a company between sources. For VAT-registered businesses the VAT number is the same as the organisation number.

Two things are worth knowing when you build lists:

• A legal entity (hovedenhet) can have one or more sub-units (underenheter), which are the actual places of business. If you are looking for local branches, the sub-units are often more useful than the head entity.
• Names change, organisation numbers do not. Keep the number as the ID in your own spreadsheet or CRM.

Industry codes: SN2025

Each entity has one or more industry codes from the Norwegian Standard Industrial Classification, which is based on the EU's NACE. Statistics Norway (SSB) introduced the new version, SN2025, in its business register and in Enhetsregisteret from 1 September 2025, replacing SN2007. Many codes were carried over unchanged, but some were split or merged. If you saved filters or lists based on old SN2007 codes, check them against SSB's correspondence table.

Industry codes are self-reported and describe the main activity. A company coded as "computer consultancy" may also sell hardware. Treat the code as a starting point, then confirm on the company's own website.

Annual accounts are public

Regnskapsregisteret (the Register of Company Accounts) receives the annual accounts of entities with an accounting obligation. Limited companies (AS) always have this obligation from the day they are incorporated. For sole proprietorships it depends on size and type of activity, so many small sole proprietorships have no accounts in the register at all.

The deadline for submitting accounts for a calendar-year company is 31 July the following year. That has a practical consequence: in the first half of the year, the newest public accounts are usually more than a year old. Brønnøysund lets anyone download accounts free of charge, and an open API gives key figures from the most recently submitted accounts.

Using the data for prospecting

A typical approach is to narrow the register to a realistic target list and then do the qualitative work yourself:

1. Filter on industry code, county or municipality, legal form, size (employees) and status (exclude bankrupt or dissolved entities).
2. Look at the latest accounts for revenue and trend where they exist.
3. Check signals that suggest timing: open job ads (Norway's public job board, arbeidsplassen.no, is run by NAV) or public tenders the company has announced.
4. Visit the website and decide whether the company actually fits.

Our guide on finding B2B leads in Norway walks through this step by step, and finding Norwegian companies by industry explains how to get the industry filter right.

Finding suppliers and partners

The same register works in the other direction. If you need a subcontractor in a particular region, filter by industry code and municipality, check that the company is active and has filed recent accounts, and look at size and history. Public buyers announce competitions on Doffin, Norway's national procurement notice database, and contracts above the EEA thresholds are also published on TED. See supplier discovery for how to approach this systematically.

Limits of the data

• Self-reported facts. Industry code, employee numbers and contact details are reported by the companies themselves and may be out of date.
• Missing accounts. No accounts does not mean no revenue: the entity may not have an accounting obligation, may file late, or may be new.
• Unknown is not zero. If the number of employees is not registered, that is different from a company with zero employees.
• Banks and insurers are not covered by the open key-figure API in the same way as ordinary companies.

Privacy and responsible outreach

A Norwegian sole proprietorship (enkeltpersonforetak, ENK) is often named after its owner. Datatilsynet treats sole proprietorships on the same footing as natural persons, so data about them, and about named contact people in any company, is personal data under the GDPR. Use it only for a clear purpose, keep it to what you need, and be ready to tell people where you got their details.

For e-mail and SMS marketing, the Marketing Control Act (markedsføringsloven) § 15 requires prior consent from natural persons, with a narrow exception for existing customers. According to Datatilsynet's guidance this also covers e-mail sent to a named person's work address. Generic company addresses are treated differently, but read Forbrukertilsynet's guidance before you run a campaign.

How Propler covers Norway

Norway is live in Propler. Our company data comes from our copy of Enhetsregisteret, about 1.18 million registered entities, refreshed nightly from Brønnøysund's open data.

• Company search (free, no login) lets you search by name or organisation number and filter by industry group, county, municipality, legal form, status, employees, registration date and whether the company has open job ads, tenders, contact info or a website.
• Company pages show register facts, roles, the latest accounts where Brønnøysund has them, open job ads and tenders the company has announced.
• AI search (login required) lets you describe what you sell or need in plain language and ranks matching companies with the evidence behind each match. Treat a match as decision support, not proof of a buying need.

For an overview of an industry in a county, see how to analyse a Norwegian market. The place to start is the free company search.