LAWYER PROFILE
Johan Karlsson

Johan Karlsson

Europe 2026

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Ranked in 1 practice area

About

Provided by Kastell Advokatbyrå

Practice Areas

Johan Karlsson is one of Sweden’s most renowned EU and competition law practitioners and has for many years been ranked as one of the very best lawyers in this area. He has profound knowledge across the competition law spectrum, combined with more than thirty years’ practical experience. Johan has extensive experience also in related areas such as state aid, public procurement as well as in sports law. He represents large and small companies and organisations in matters before Swedish authorities, the European Commission and the EFTA Surveillance Authority as well as in litigation before Swedish and EU courts and arbitration tribunals. He is an advisor to the Swedish Competition Authority in the International Competition Network (ICN) and has served as an expert in the governmental inquiry regarding increased decision-making powers for the Swedish Competition Authority (2016:49). Johan is active in several Swedish and international fora and networks and has published several articles in leading journals and other publications. He is the creator and author of the Swedish reference work, Competition law – a handbook (Konkurrensrätt – en handbook, 2022) and of a commentary on the Competition Damages Act (Konkurrensskadelagen – en kommentar, 2023). Johan also serves as a member of the Swedish Supreme Sports Tribunal (Riksidrottsnämnden).

Career

Associate, Vinge, 1993-2000

Partner, Vinge, 2001-2023

Partner, Kastell, 2023-

Member of the National Sports Committee 2023

Chambers Review

Provided by Chambers

Chambers European Guide

Competition/European Law - Sweden

Band 1
Band 1

Individual Editorial

Johan Karlsson stands out for his work on investigations into alleged cartels and abuses of dominance, as well as representing clients in contentious state aid mandates.

Strengths

Provided by Chambers

  • He is an expert in competition law, one of the absolute best in the field.

    Competition/European LawChambers European Guide
  • Johan Karlsson always gives a good impression, good treatment and has an ability to come up with creative solutions when we don't think there are more opportunities available.

    Competition/European LawChambers European Guide
  • Johan Karlsson is a very skilled competition lawyer, both for competition law and also state aid matters.

    Competition/European LawChambers European Guide
  • I think Johan Karlsson is Sweden’s premier competition lawyer most likely.

    Competition/European LawChambers European Guide
  • We are very happy working with Johan Karlsson, he knows the competition laws really well - that is a huge advantage.

    Competition/European LawChambers European Guide

Ranked Individuals at Kastell Advokatbyrå (10)

Sweden

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