# Proff, contact us, Proff Premium API, GET /api/companies/register/{country}/{id}: Company enrichment API

> Looks up a single register company or business unit by its unique identifier (organisation number or business unit id), returning the full detail record: financial accounts, shareholders, signatories, subsidiaries and other extended attributes

Proff's company enrichment API on its Proff Premium API plan. It returns 8 of the 13 key fields we check: Industry, Type and status, Employees, Headquarters, Locations, Revenue and budgets, Parents, Phones.
We haven't run Proff through [our company enrichment API benchmark](https://datacircle.dev/best-company-enrichment-api.txt) yet.
Proff gives this plan's price on request. We rank 1,451 plans for company enrichment APIs by price. Half the plans cost $9.00 per 1,000 companies or less.
[Extruct's $49 monthly plan](https://datacircle.dev/company-enrichment-apis/extruct/49-monthly/llms.txt) is the cheapest paid plan per 1,000 companies. Extruct's company enrichment API costs nothing beyond the plan price.
[CNPJ API's R$99 monthly plan (/bulk-cnpj)](https://datacircle.dev/company-enrichment-apis/cnpj-api/r-99-monthly-pro-post-bulk-cnpj/llms.txt) covers any number of companies in Brazil only. CNPJ API's R$99 monthly plan costs less up front than Extruct's $49 monthly plan.
[GLEIF](https://datacircle.dev/company-enrichment-apis/gleif/free/llms.txt), [SEC EDGAR](https://datacircle.dev/company-enrichment-apis/sec-edgar/free/llms.txt) and [GetProspect](https://datacircle.dev/company-enrichment-apis/getprospect/49-monthly-starter-post-v2-companies-enrich/llms.txt) are the best company enrichment API providers in the Datacircle benchmark for companies in any country.

- This page: https://datacircle.dev/company-enrichment-apis/proff/contact-us-proff-premium-api-get-api-companies-register-country-id
- [Company enrichment API: 130+ providers compared](https://datacircle.dev/best-company-enrichment-api.txt)
- Get it: https://www.proff.no/info/proff-api/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-enrichment-api-pricing
- Request: `GET https://api.proff.no/api/companies/register/{country}/{id}`
- API key: with the plan, on https://www.proff.no/info/proff-api/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-enrichment-api-pricing
- Its API docs: https://api.proff.no/swagger/index.html?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-enrichment-api-pricing
- Sold by: Proff (https://www.proff.no?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-enrichment-api-pricing)
- Checked: 2026-11-04

## In the answer

- Completeness: 62%
- Industry: ✓
- Type and status: ✓
- Employees: ✓
- Headquarters: ✓
- Locations: ✓
- Revenue and budgets: ✓
- Parents: ✓
- Phones: ✓

## Price

- Billing: contact

## Aggregators

- Aggregators: none

## In their words

- Their pitch: Looks up a single register company or business unit by its unique identifier (organisation number or business unit id), returning the full detail record: financial accounts, shareholders, signatories, subsidiaries and other extended attributes

## Data

- Countries: Norway, Sweden, Denmark, Finland
- Keep data: no API terms
- Use data: no API terms

## Rate limit

- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: country, id
- Method: GET
- Path: /api/companies/register/{country}/{id}

## About the plan

- Plan: Proff Premium API
- Who can get it: anyone with a token from Proff sales

## The 80 fields the plan's answer can hold

company name, organisation number, business unit ID, company ID, company type, company type name, email, website, telephone number, mobile phone, fax number, postal address, visitor address, country part, county, municipality, coordinates, NACE categories, sector code, company purpose, number of employees, minimum employees, maximum employees, revenue, profit, established date, foundation date, foundation year, liquidation date, status, status date, marketing protection, EHF available, accounts last updated date, estimated turnover, has security, previous names, alternative names, registered as enterprise, registered for NAV, registered for payroll tax, registered for VAT, VAT registration date, registered for voluntary, registered for prepayment, registered for tax administration, registration date, share capital, shareholders last updated date, subsidiaries last updated date, announcements, annual accounts, annual reports, company accounts, cash flow statements, corporate accounts, corporate cash flow statements, roles, contact person, main office, person roles, shareholders, signatories, procuration holders, subsidiaries, industry analyses, short analyses, trials, mortgages, central approval, corporate structure, parent company name, parent company organisation number, number of companies in the structure, number of subsidiaries, public listings, key figures, Proff industries, Proff listing ID, latest public accounting period

## Proff's plans (1)

- [Proff, contact us, Proff Premium API, GET /api/companies/register/{country}/{id}](https://datacircle.dev/company-enrichment-apis/proff/contact-us-proff-premium-api-get-api-companies-register-country-id/llms.txt): 62% complete

## Proff's calls for this API (2)

- `GET /api/companies/eniropro/{country}/{id}`: [Proff, contact us, Proff Premium API, GET /api/companies/eniropro/{country}/{id}](https://datacircle.dev/company-enrichment-apis/proff/contact-us-proff-premium-api-get-api-companies-eniropro-country-id/llms.txt)
- `GET /api/companies/register/{country}/{id}`: [Proff, contact us, Proff Premium API, GET /api/companies/register/{country}/{id}](https://datacircle.dev/company-enrichment-apis/proff/contact-us-proff-premium-api-get-api-companies-register-country-id/llms.txt)

## Proff's APIs (5)

- [Proff: business verification API pricing, 1 plan](https://datacircle.dev/business-verification-apis/proff/contact-us/llms.txt)
- [Proff: people search API pricing, 1 plan](https://datacircle.dev/people-search-apis/proff/contact-us/llms.txt)
- [Proff: company hierarchy API pricing, 1 plan, GET /api/companies/register/{country}/{id}/corporateStructure](https://datacircle.dev/company-hierarchy-apis/proff/contact-us-proff-premium-api-get-api-companies-register-country-id-corporatestructure/llms.txt)
- [Proff: company hierarchy API pricing, 1 plan, GET /api/companies/register/corporateStructures/{country}](https://datacircle.dev/company-hierarchy-apis/proff/contact-us-proff-premium-api-get-api-companies-register-corporatestructures-country/llms.txt)
- [Proff: company discovery API pricing, 1 plan, GET /api/companies/eniropro/{country}](https://datacircle.dev/company-discovery-apis/proff/contact-us-proff-premium-api-get-api-companies-eniropro-country/llms.txt)
- [Proff: company discovery API pricing, 1 plan, GET /api/companies/register/{country}](https://datacircle.dev/company-discovery-apis/proff/contact-us-proff-premium-api-get-api-companies-register-country/llms.txt)
- [Proff: company enrichment API pricing, 1 plan, GET /api/companies/register/{country}/{id}](https://datacircle.dev/company-enrichment-apis/proff/contact-us-proff-premium-api-get-api-companies-register-country-id/llms.txt)

## Proff: company enrichment API alternatives

- [GetProspect, contact us, Custom terms, POST /v2/companies/bulk-enrich](https://datacircle.dev/company-enrichment-apis/getprospect/contact-us-custom-terms-post-v2-companies-bulk-enrich/llms.txt): 62% complete, stored
- [Context.dev, contact us, Enterprise, POST /v1/brand/retrieve, Lookup by domain](https://datacircle.dev/company-enrichment-apis/context-dev/contact-us-enterprise-post-v1-brand-retrieve-lookup-by-domain/llms.txt): 62% complete, 3 months
- [Xverum, contact us](https://datacircle.dev/company-enrichment-apis/xverum/contact-us/llms.txt): 62% complete, stored
- [Kendo, contact us, Enterprise, GET /companybydomain](https://datacircle.dev/company-enrichment-apis/kendo/contact-us-enterprise-get-companybydomain/llms.txt): 62% complete, stored
- [Grata, contact us](https://datacircle.dev/company-enrichment-apis/grata/contact-us/llms.txt): 62% complete

## Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-11-04.

- https://api.proff.no/swagger/1.0/swagger.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-enrichment-api-pricing
- https://api.proff.no/swagger/index.html?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-enrichment-api-pricing
- https://apidocs.proff.no?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-enrichment-api-pricing
- https://www.proff.no/info/avtalevilkar/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-enrichment-api-pricing
- https://www.proff.no/info/premium-api/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-enrichment-api-pricing
- https://www.proff.no/info/proff-api/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-enrichment-api-pricing