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Hans Cappelen Arnesen Partner Advokat

Hasse joined the firm in 1990 and has been a transaction partner since 1996. His practice includes a wide range of M&A and equity capital markets work, acting for corporate clients, PE firms and leading investment banks.

He is consistently ranked in tier 1 in Norway within both Corporate/Capital Markets and M&A. He was ranked as no. 1 for IPOs and other ECM transactions by Finansavisen in their 2016, 2017, 2018, 2019, 2020 and 2021 surveys of Norwegian commercial lawyers, and he was ranked among the top 7 M&A lawyers in all of the same surveys.

Hasse has been the Chairman of Thommessen since 2014.
  1. The Legal 500
    Hall of Fame, Commercial, Corporate and M&A

  2. The Norwegian Financial Daily's annual Lawyer survey
    1st Place, Issues and IPOs

  3. Chambers & Partners Europe and Global
    Band 1, Capital Markets: Equity

    "Deep understanding of legal and commercial aspects."

  4. Chambers & Partners Europe and Global
    Band 1, Corporate/M&A

    "Deep understanding of legal and commercial aspects."

  5. IFLR1000 2020
    Market Leader, M&A

    "Experienced and knowledgeable. Flexible. Available, positive."

  6. IFLR1000
    Market Leader, Capital markets: Equity

    "Skilled, accessible and easy to work with."

  7. The Legal 500
    Recommended Lawyer, Capital Markets

    ‘Very good at finding solutions and ensuring a smooth execution‘

  8. Who's Who Legal
    Recommended, Capital Markets: Debt and Equity

  9. Best Lawyers
    Lawyer Of The Year, Mergers and Acquisitions Law

  10. Best Lawyers
    Recognized Lawer, Capital Markets Law


  11. Recognized Lawer, Corporate Law

  12. Best Lawyers
    Recognized Lawer, Mergers and Acquisitions Law

  1. Partner, Oslo, Thommessen

  2. Senior Associate/Lawyer, London, Thommessen

  3. Associate, Oslo, Thommessen

  1. Exam in Essential Project Management (5 ECTS)
    Skema Business School

  2. Candidate in Jurisprudence
    University of Oslo

  3. Postgraduate Diploma
    Oslo School of Economy