Arntzen de Besche
Arntzen Grette (formerly Arntzen de Besche) is a Norwegian full-service corporate law firm with 245 employees, including 185 lawyers, serving large enterprise clients across finance, energy, real estate, and healthcare from four offices in Norway.
- Company typePrivate
- Founded2001
- HeadquartersOslo, Norway
- Headcount101–250
- GTM typeB2B
- OfferingServices
What Arntzen de Besche does
Arntzen de Besche, currently doing business as Arntzen Grette, is a Norwegian full-service corporate law firm founded in 2001 and operating as an independent private partnership. The firm employs 245 people, of whom 185 are lawyers and legal professionals (jurister), across four offices in Norway: Oslo (headquarters), Trondheim, Stavanger, and Mo i Rana. It serves large Norwegian enterprises across financial services, energy and oil & gas, real estate, healthcare, and infrastructure, with practice areas spanning dispute resolution (including Supreme Court litigation), M&A and corporate transactions, real estate law, capital markets, labor and employment law, healthcare law, crowdfunding regulation, and ESG/sustainability advisory. The firm also maintains a German Desk capability for German-speaking cross-border clients.
The firm generates revenue through professional legal advisory services billed to corporate clients via hourly rates and fixed fees on specific engagements. Go-to-market is partner-led enterprise field sales, with no significant external marketing channels beyond professional reputation, the firm website, newsletters, and events. Named mandates include the Nye Aker Sykehus hospital project (NOK ~30 billion investment), the Pandion Energy–Vår Energi transaction, the Swiss Life big box real estate sale, and a precedent-setting Supreme Court case for Entercard on BankID misuse liability.
The firm is privately held by its partners with no parent company, private equity backing, or institutional investor ownership. Recent strategic activity centers on lateral partner additions in dispute resolution (Behncke, Sanengen), positioning around new Norwegian regulatory regimes (Crowdfunding Act, EU Listing Act transposition, healthcare data legislation), and deepening institutional standing in labor law via a partner appointment to the Labor Court.
Arntzen de Besche firmographics
Firmographics- Name
- Arntzen de Besche
- Legal name
- Advokatfirmaet Arntzen Grette
- Website
- https://adeb.no
- Company type
- Private
- Founded year
- 2001
- Operating status
- Operating
- Headcount range
- 101–250 employees
- Short description
- Arntzen Grette (formerly Arntzen de Besche) is a Norwegian full-service corporate law firm with 245 employees, including 185 lawyers, serving large enterprise clients across finance, energy, real estate, and healthcare from four offices in Norway.
- Ownership category
- akta.pro rank
Arntzen de Besche industry classification
Industry- Product category
- Legal Services
- NAICS
- Offices of Lawyers (541110), Legal Services (5411), Management Consulting Services (54161)
- SIC
- Services-Legal Services (8111), Services-Management Consulting Services (8742)
- akta.pro primary industry
- Enterprise Risk Management (ERM) Advisory (BPAHAFAA)
- akta.pro secondary industry
- Bankruptcy, Restructuring & Insolvency Law (BPAHAAAH)
Keywords
Where Arntzen de Besche is headquartered
LocationHeadquarters
- HQ city
- Oslo
- HQ country
- Norway
- HQ region
- Europe
Offices4 records
Markets served
Arntzen de Besche business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Operations, Marketing or Sales
Revenue model
- Legal Advisory Services: The firm generates revenue through professional legal services billed to corporate clients. Services include M&A advisory, dispute resolution, regulatory compliance, real estate transactions, and employment law. Revenue is derived from ongoing client relationships and specific transaction engagements.
Go-to-market motion1 record
Distribution channels1 record
Marketing channels4 records
Arntzen de Besche product offering
Product offeringCore offering
Arntzen de Besche is a Norwegian law firm delivering legal advisory and representation services to corporate and institutional clients. The firm operates across multiple practice areas, including dispute resolution, transactions and M&A, real estate law, capital markets, labor law, healthcare law, crowdfunding/financing regulation, and sustainability/ESG advisory, from four offices in Norway (Oslo, Trondheim, Stavanger, Mo i Rana) with 245 employees including 185 lawyers and jurists.
Product overview
Arntzen Grette is a full-service Norwegian law firm offering a unified portfolio of legal advisory services. The firm provides specialist legal counsel across multiple practice areas including dispute resolution (tvisteløsning), transactions and M&A, real estate law, capital markets, labor law, healthcare law, crowdfunding regulation, and sustainability/ESG. The firm operates as a single integrated legal practice rather than a modular product platform, with 245 employees including 185 lawyers across four offices in Oslo, Trondheim, Stavanger, and Mo i Rana serving corporate clients throughout Norway.
Differentiator
Problem solved
Functional benefit
Quantifiable outcome
- Successfully represented Entercard in landmark Supreme Court ruling on BankID misuse liability
- +1 more outcomes
Companies that use Arntzen de Besche
Customer profileNamed customers7 records
Segments1 record
Ideal customer profiles1 record
Arntzen de Besche technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Arntzen de Besche partnerships and signals
Strategic signalScale indicators2 records
Recent moves6 records
Expansion highlights4 records
Arntzen de Besche competitors and assessment
Company assessmentBroad incumbents
- Bird & Bird: International law firm with a Nordic presence competing for cross-border tech, finance and regulatory mandates involving Norwegian clients; an international incumbent rather than a domestic peer.
Direct peers
- Advokatfirmaet Wiersholm: One of Norway's leading full-service commercial law firms with comparable headcount and a similar enterprise-client focus on M&A, capital markets, dispute resolution and regulatory matters; a direct competitor for Norwegian corporate mandates.
- Advokatfirmaet Thommessen: Largest Norwegian full-service law firm, competing head-to-head for the same blue-chip Norwegian corporates across transactions, dispute resolution and regulatory advisory.
- Advokatfirmaet Selmer: Norwegian full-service law firm covering M&A, dispute resolution, employment and regulatory matters for corporate clients; comparable size and client base to Arntzen Grette.
- Advokatfirmaet BAHR: Norwegian full-service commercial firm with strong M&A, banking/finance and dispute resolution practices serving large Norwegian enterprises; highly comparable in scope and target clients.
- Wikborg Rein: Major Norwegian law firm with internationally recognized shipping, energy and dispute resolution practices; competes directly for Norwegian and offshore-related corporate mandates.
- Advokatfirmaet Hjort: Norwegian full-service law firm with strong public-law and corporate practices, serving Norwegian enterprises and public-sector clients; comparable scope and target market.
- Advokatfirmaet Ræder: Mid-sized Norwegian law firm offering corporate, dispute resolution, employment and IP services to enterprise clients — directly comparable in size and practice mix.
- Advokatfirmaet Schjødt: Full-service Norwegian law firm with strong sector practices in energy, real estate and dispute resolution, competing for the same enterprise mandates across Norway.
- Advokatfirmaet Haavind: Mid-sized Norwegian full-service firm of similar headcount, focused on M&A, employment, real estate and dispute work for Norwegian corporates — a direct competitor for enterprise mandates.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat3 records
Key risks5 records
Key highlights7 records
Customer concentration
Arntzen de Besche social profiles
Digital presenceArntzen de Besche financial estimates
Financial estimateRevenue estimate
Valuation estimate
Arntzen de Besche leadership team
Management profileNumber of profiles
Profiles6 records
Arntzen de Besche funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Arntzen de Besche M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Arntzen de Besche
What does Arntzen de Besche do?
Arntzen de Besche is a Norwegian law firm delivering legal advisory and representation services to corporate and institutional clients. The firm operates across multiple practice areas, including dispute resolution, transactions and M&A, real estate law, capital markets, labor law, healthcare law, crowdfunding/financing regulation, and sustainability/ESG advisory, from four offices in Norway (Oslo, Trondheim, Stavanger, Mo i Rana) with 245 employees including 185 lawyers and jurists.
Is Arntzen de Besche a public or private company?
Arntzen de Besche is a private company. It is classified as management employee owned and is currently operating.
When was Arntzen de Besche founded?
Arntzen de Besche was founded in 2001. It employs 101 to 250 people.
Where is Arntzen de Besche based?
Arntzen de Besche is headquartered in Oslo, Norway, in the Europe region.
How does Arntzen de Besche make money?
One revenue line is on record: legal Advisory Services.
Who are Arntzen de Besche's main competitors?
Bird & Bird is listed as a broad incumbent. Direct peers are Advokatfirmaet Wiersholm, Advokatfirmaet Thommessen, Advokatfirmaet Selmer, Advokatfirmaet BAHR, Wikborg Rein, Advokatfirmaet Hjort, Advokatfirmaet Ræder, Advokatfirmaet Schjødt and Advokatfirmaet Haavind.
Does Arntzen de Besche have an API?
No public API is recorded for Arntzen de Besche.
What industry is Arntzen de Besche in?
Arntzen de Besche's product category is Legal Services. Its primary akta.pro industry code is BPAHAFAA, Enterprise Risk Management (ERM) Advisory, with a secondary code of BPAHAAAH, Bankruptcy, Restructuring & Insolvency Law. Its NAICS code is 541110 and its SIC code is 8111.