Noted for its ‘great composition of experienced lawyers and young talent’, MLL Legal regularly appears in cases under the ICC, LCIA, SAC, CAS and UNCITRAL rules, as well as in ad hoc arbitrations. At the senior end, Jean Marguerat and Urs Boller are the key names. The team is equally comfortable representing clients across a wide range of industries, including construction, energy, banking, manufacturing and aviation.
Legal 500 Editorial commentary

Testimonials

Collated independently by Legal 500 research team.

  • ‘Strong team spirit, client-friendly, clear and precise advice.’
  • ‘I had the chance to work with Jean Marguerat on an arbitration claim. His expertise on the subject we dealt with was excellent. In addition, he was very responsive.’
  • ‘The team works with an efficient coordination, supplying its client's needs at the proper moment help is needed.’
  • ‘The team is very homogeneous in its delivery of help as needed.’
  • 'Jean Marguerat is a go-to for arbitrator and counsel work: no nonsense, clear-minded, solid legal knowledge, ability to render simple the most complicated things. A pleasure working with him.'
  • ‘The team has a great composition of experienced lawyers and young talent.’

Key clients

  • FCC Construcción
  • Kingdom of Spain
  • Everllence SE
  • Adecco Group AG

Work highlights

Represented the Kingdom of Spain in Swiss Supreme Court proceedings challenging an investment treaty award.
Acted as counsel to FCC Construcción in a $35bn infrastructure arbitration involving consortium, financing and construction issues.
Represented Everllence SE in a dispute among members of a consortium established for the construction of a power plant in the MENA region.
Practice head

Jean Marguerat; Urs Boller

Other key lawyers

Dmitry Pentsov; Léonard Stoyanov