Department profile
Sullivan & Cromwell LLP

Antitrust

USA Guide 2026 : District of Columbia

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Sullivan & Cromwell LLP

Rankings

About

Provided by Sullivan & Cromwell LLP

To learn about our practice, please visit https://www.sullcrom.com/PracticeListing.

Chambers Review

Provided by Chambers

Antitrust - District of Columbia

Band 3

What the Team is Known For
Sullivan & Cromwell LLP is a highly recommended practice with notable expertise across merger review, government investigations and antitrust litigation. Demonstrates particular strength in cartel work, with capabilities in criminal investigations and follow-on litigation. Well placed to advise on merger clearance with cross-border requirements.
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Strengths

Provided by Chambers

  • Sullivan & Cromwell are absolutely fantastic during the entire incredibly challenging process. They were incredibly organized, attentive to our needs, professional, timely and highly strategic throughout.

    Antitrust respondentUSA

Notable Practitioners

Provided by Chambers

  • Renata Hesse
    Renata Hesse

    Renata Hesse

    Renata Hesse is particularly commended for her extensive work in the cartel space, where she is able to draw on her previous experience leading the Antitrust Division of the DOJ. She also handles complex merger clearance work for large corporate clients and is a well-known figure in the antitrust Bar.

    • Renata was incredibly attentive and very easily and quickly able to relate to our business team to drive strategic decision-making.

      Antitrust respondentUSA

    • Renata is well known, really measured and thoughtful.

      Antitrust respondentUSA
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  • Joseph Matelis
    Joseph Matelis

    Joseph Matelis

    Joseph Matelis has a broad antitrust practice spanning transactional, merger clearances and contentious matters. He regularly works with significant clients in the finance and energy sectors.

    • Joseph is a majorly trusted adviser for significant deals.

      Antitrust respondentUSA

    • Joe is just a very calm, intellectual lawyer who doesn't get rattled very easily. He is very strategic and helps navigate through the issues.

      Antitrust respondentUSA

    • Joseph is a creative problem-solver who takes a thoughtful approach to complex matters.

      Antitrust respondentUSA

    • Joseph is always very impressive.

      Antitrust respondentUSA
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  • Samantha Hynes
    Samantha Hynes

    Samantha Hynes

    Samantha Hynes is an experienced practitioner who advises clients on sophisticated transactions, covering compliance and clearance proceedings. She has particular expertise in the healthcare sector.

    • Sam was truly outstanding. I couldn't have been more impressed with her brain power, work ethic and responsiveness.

      Antitrust respondentUSA

    • Sam is terrific. She is very practical, knowledgeable and produces exceptional work product. She is skilled at dealing with government agencies.

      Antitrust respondentUSA
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Ranked Individuals at Sullivan & Cromwell LLP (3)

District of Columbia

Members

Provided by Sullivan & Cromwell LLP

Sullivan & Cromwell LLP has rankings in the following guides

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