About
Björn is a Principal Associate in our Antitrust, Competition and Trade practice based in Brussels.
Björn advises clients on EU merger control in a wide variety of industries including telecommunications, energy, mining and life sciences. He also has extensive experience advising clients on antitrust and regulatory matters at EU level, with a particular focus on abuse of dominance proceedings in the technology sector. Björn gained further insights into in-house commercial and business considerations during a 9-month client secondment at a global technology company
Björn is admitted to practice law in Belgium and in the State of New York. He speaks English and Dutch.
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Björn’s experience includes advising:
- A global technology company on its defence against the EC and UK CMA's parallel antitrust investigations into Facebook Marketplace, and on its defence and coordination of other antitrust proceedings around the world.
- A global technology company on its defence against an abuse of dominance investigation launched by the European Commission.
- HPE on the European Commission’s and UK CMA’s merger control reviews in relation to its $14bn acquisition of Juniper Networks.
- MásMóvil on its €18.6bn joint venture with Orange to combine their telecommunications operations in Spain.
- Teck on the global merger control, foreign‑investment and regulatory strategy aspects of its US$53 billion merger‑of‑equals with Anglo American in the critical minerals sector.
- Liberty Global on the European Commission's Phase II merger investigation of the €18bn sale of its German and Eastern European businesses to Vodafone.
- Deutsche Telekom and Greek telecom group OTE on the merger control aspects of the sale of their Romanian fixed-line telephony division, the former Romtelecom, to Orange (EU Phase 1 with remedies).
- A global pharmaceutical company on its responses to Article 22 referral requests from the European Commission in relation to its closed acquisition of an early-stage medical device producer.


Björn Sijtsma
Bastion Tower
Place du Champ de Mars/Marsveldplein 5