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Defence and Security

National security is more crucial today than it has been in decades – a fact reflected in the Norwegian government’s historic increase in defence spending. We offer unique advisory services to suppliers in the defence industry by combining legal expertise with broad experience from the defence sector and an in-depth understanding of business and national security.

Thommessen advises both private and public entities in the defence and security sector in managing the complex requirements that come with operating in a security-sensitive environment. We have extensive experience advising defence suppliers across a wide range of legal disciplines.

Our services include, among others:

  • Defence procurement and classified procurements: Defence procurements are frequently subject to specific regulations, as well as provisions of the Norwegian Security Act. We assist suppliers and contracting authorities throughout the process, ensuring compliance with the Norwegian Security Act, including risk assessments, facility security clearances, and management of sensitive information.
  • IT projects in the defence and security sector: IT projects in the defence sector face unique challenges in relation to cybersecurity, protection of critical infrastructure, and the safeguarding of classified information. Our team has extensive experience with digital projects that require high levels of security, and we provide advisory services ensuring compliance with both national and international security standards.
  • Defence contracts: We provide tailored advice for complex defence contracts and assist in contract negotiations. Our guidance helps suppliers understand and comply with the specific security requirements associated with being a supplier to the Norwegian defence sector.
  • Transactions involving parties in the defence and security sector: We provide expertise in due diligence and transactions involving acquisitions and investments in defence sector entities. This includes foreign direct investment (FDI) requirements, assessment of specific security risks related to a transaction, compliance with the Norwegian Security Act, and evaluating risks concerning potential government intervention on national security grounds.
  • Strategic advice on threat and risk landscapes: We offer strategic advice on how an evolving threat landscape may impact businesses. This includes helping defence sector actors stay ahead of regulatory developments and adapt accordingly. We also assist in identifying commercial opportunities and offer advice on how businesses may capitalise commercially on emerging trends.

Rankings

  • 2025 Firm to watch Regulatory, compliance and investigations 2025

The team

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