Insights

Market leadership Thommessen is a leading Norwegian commercial law firm with a long history (established 1856) and offices in key markets (Oslo, Bergen, Stavanger, London), indicating a strong client base and potential for enterprise-level legal services, advisory, and cross-border offerings.

Legal tech adoption The firm employs a modern tech stack (Craft CMS, Microsoft 365, Cloudflare, Atlassian tools, and analytics via Facebook Pixel), suggesting openness to digital transformation and potential upsell of cybersecurity, data privacy, compliance tooling, and IT modernization services.

Cybersecurity emphasis Thommessen launched Thommessen CyberHub in 2021 to provide cyberassurance services, collaborating with international experts, signaling a strategic interest in cybersecurity risk management, incident response, and regulatory compliance solutions for clients.

Recognized quality Recognition as top-ranked in 16 Legal 500 categories (2024) and multiple Firm of the Year accolades position Thommessen as a trusted partner, enabling cross-sell of specialized practice areas such as corporate, finance, compliance, and investigations to existing clients.

Global and local footprint With offices in Oslo, Bergen, Stavanger and London and a client base spanning private and public sectors, there is an opportunity to present integrated cross-border legal service packages, along with potential partnerships or services for international clients expanding in Norway.

Similar companies to Thommessen

Thommessen Tech Stack

Thommessen uses 8 technology products and services including Atlassian, imgix, Cloudflare, and more. Explore Thommessen's tech stack below.

  • Atlassian
    Application Development & Management
  • imgix
    Content Delivery Network
  • Cloudflare
    Content Management System
  • Microsoft PowerPoint
    Editors
  • Miscellaneous
  • Network Hardware
  • X-Content-Type-Options
    Web & Portal Technology

Thommessen's Email Address Formats

Thommessen uses at least 4 email formats:
Thommessen Email FormatsExamplePercentage
First.Last@thommessen.noJohn.Doe@thommessen.no
78%
Last@thommessen.noDoe@thommessen.no
15%
First.Middle.Last@thommessen.noJohn.Michael.Doe@thommessen.no
4%
First@thommessen.noJohn@thommessen.no
3%

Frequently Asked Questions

What is Thommessen's phone number?

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You can contact Thommessen's main corporate office by phone at . For more prospecting data, LeadIQ has access to up-to-date and accurate contact information within our platform. Find, capture, and sync contact data to your CRM and sales tools in one click.

What is Thommessen's official website and social media links?

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Thommessen's official website is thommessen.no and has social profiles on LinkedIn.

How much revenue does Thommessen generate?

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As of August 2026, Thommessen's annual revenue is estimated to be $1M - $10M.

What is Thommessen's SIC code and NAICS code?

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Thommessen's SIC code is 8111 - Legal Services and NAICS code is 54111 - Offices of Lawyers.

How many employees does Thommessen have currently?

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As of August 2026, Thommessen has approximately 471 employees across 2 continents, including Europe and North America. Key team members include Cfo: A. M. O., Head Of Marketing And Communications: M. K. F. and Head Of Hr: A. T. B. Explore Thommessen's employee directory with LeadIQ.

What industry does Thommessen belong to?

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Thommessen operates in the Law Practice industry.

What technology does Thommessen use?

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Thommessen's tech stack includes Atlassian, imgix, Cloudflare, Microsoft PowerPoint, Microsoft 365, DocuSign, Cisco and X-Content-Type-Options.

What is Thommessen's email format?

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Thommessen's email format typically follows the pattern of First.Last@thommessen.no. Find more Thommessen email formats with LeadIQ.

When was Thommessen founded?

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Thommessen was founded in 1856.
Thommessen logo

Thommessen

Law PracticeOslo, Norway201-500 Employees

Thommessen is a prominent commercial law firm in Norway that serves both domestic and international clients across private and public sectors. It provides a full-service, modern legal offering designed to manage complex matters with confidence, efficiency, and high quality, drawing on extensive experience, capacity, and a collaborative culture. Founded in 1856 and based in Oslo, the firm also maintains offices in Bergen, Stavanger, and London.

Over its long history, Thommessen has been closely involved in shaping Norwegian business and continues to emphasize a future-oriented approach and sustainable growth within the business community. A notable recent development is the 2021 launch of Thommessen CyberHub, a one-stop shop for cyberassurance services built with international cybersecurity expertise.

Section iconCompany Overview

Phone number
SIC Code
8111 - Legal Services
NAICS Code
54111 - Offices of Lawyers
Founded
1856
Employees
201-500

Section iconFunding & Financials

  • $1M - $10M

    Thommessen's revenue is estimated to be in the range of $1M - $10M

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