Accountants and corporate service providers in Oslo

Oslo is where a foreign founder in Norway is most likely to find help. Statistics Norway counts 1,119,478 residents in the Oslo urban settlement on 1 January 2026, of whom 724,584 live in the municipality itself, and the settlement spreads into Bærum, Asker and Lillestrøm. Accountanty has a page for 31 firms here, which is 31 of the 36 in the country. The other five are in Bergen, Sandnes and Stavanger and appear on the Norway guide.

The Oslo firms are mostly accounting practices: 28 accounting firms, two law firms and one corporate service provider. Thirteen are small, thirteen medium-sized and five belong to large networks. That spread matters to a newcomer. A small practice may give you one named contact and an answer the same day, while a larger firm has more specialists for payroll, audit or immigration but may assign your file to a junior team.

Firms in Oslo

Aider

Accounting firm · Medium-sized firm

Oslo

  • Accounting and bookkeeping
  • Tax compliance
  • VAT
  • +1 more

Languages: Norwegian · English

View profile of Aider

Enter Norway

Accounting firm · Boutique firm

Oslo

  • Company formation
  • Accounting and bookkeeping
  • Tax compliance
  • +3 more

Languages: English · Norwegian · French · Spanish …

View profile of Enter Norway

Azets

Accounting firm · International network

Oslo

  • Accounting and bookkeeping
  • Tax compliance
  • VAT
  • +1 more

Languages: Norwegian · English

View profile of Azets

Vaak AS

Accounting firm · Medium-sized firm

Oslo

  • Company formation
  • Accounting and bookkeeping
  • Tax compliance
  • +3 more

Languages: Norwegian · English

View profile of Vaak AS

ybiN AS

Accounting firm · Boutique firm

Oslo

  • Accounting and bookkeeping
  • Tax compliance
  • VAT
  • +1 more

Languages: English · Norwegian · German · Italian …

View profile of ybiN AS

7 more firms in Oslo

Who the Oslo firms work for

Twenty-seven of the 31 firms have a foreign-client focus, and the groups they describe are foreign companies doing business in Norway, foreign companies entering the market, international companies operating here and Eastern European companies. Many also serve Norwegian small and medium-sized businesses alongside them. If you are a founder who has not yet decided whether to form a company or open a branch, this is the group to ask.

The sectors named in Oslo are practical ones. Construction is named by five firms and e-commerce by four, while real estate and energy are named by three each. Cleaning, start-ups, data centres and contractors appear twice each, and single firms name dental clinics, restaurants, transport, hospitality and holding companies. A founder in a field with its own rules, such as construction with subcontractors or a business that sells online across borders, should ask a shortlisted firm to describe a client in the same line of work.

Structures, services and professional standing

On the entity side, nine Oslo profiles name the AS in that exact form, and several more describe it as a limited company or limited liability company. The Norwegian branch of a foreign company, the NUF, appears on profiles in three different wordings, which is a sign that firms here are used to foreign parents. ASA, ANS and DA are named by two firms each, and sole proprietorships by several. The Norway guide sets out what each form means.

Among services, tax compliance is offered by all 31 firms, accounting by 29, payroll by 27, VAT by 26 and company formation by 22. Audit is offered by six, bank account assistance by seven, residency and visa help by five, and corporate secretarial work and a virtual office by three each. If you need one of the narrower lines, open the service page first: company formation in Norway, audit in Norway or residency and visas in Norway.

Some profiles name standing you can check. Two firms name membership of Regnskap Norge, one states authorisation under Finanstilsynet, and one is a law firm whose lawyers are members of the Norwegian Bar Association. Ask any firm for its registration details before you sign an engagement letter. Seven of the 31 publish prices; for the rest, describe your activity, staff numbers and invoice volume in the request so a quote can be specific.

Languages

Norwegian is offered by 27 firms and English by 26, so a foreign owner can usually work in English in Oslo. Polish is offered by five, French, Italian and German by four each, Lithuanian and Russian by three, and Latvian, Estonian, Spanish and Swedish by two each. Romanian, Czech and Japanese are each offered by one. The four Italian-speaking firms are all in Oslo; see Italian-speaking accountants in Norway.

Next steps

Read the Norway guide for the legal steps of setting up, and accountants for foreign clients in Norway for the wider list. Once your needs are clear, a single request through Accountanty reaches suitable Oslo firms after our review.

Frequently asked questions

Which languages do accountants in Oslo work in?

Norwegian is offered by 27 of the 31 firms and English by 26. Polish is offered by five, and French, Italian and German by four each. Lithuanian and Russian are offered by three firms each. If you need a language outside this list, say so in your quote request.

Do Oslo firms handle company formation and the yearly accounts?

Many do. Twenty-two of the 31 offer company formation and 29 offer accounting, so one firm can often do both. Ask whether the same team handles the first registration and the first annual accounts, or whether you are handed on.

Can an Oslo firm help if my company is registered elsewhere in Norway?

In most cases, yes. Bookkeeping, VAT returns and payroll are done from documents and shared systems, so the firm's address matters less than the service. Ask whether it has clients outside Oslo and how it handles meetings.

Are there firms in Oslo that work with foreign companies setting up a branch?

Yes. Twenty-seven of the 31 firms have a foreign-client focus, and the Norwegian branch of a foreign company, the NUF, appears on several profiles. Ask how many branches the firm has registered and whether it handles the annual accounts for them.

Where are the accountants outside Oslo?

Five firms in Norway are based elsewhere, in Bergen, Sandnes and Stavanger. They appear on the Norway guide and can serve clients remotely. For a company in Oslo, the 31 firms on this page are the closer option.

General information, not legal or tax advice. Rules, rates and fees change: check them with the official sources linked on this page or with a qualified adviser before you act.