Department profile
Mayer Brown LLP

Litigation: White-Collar Crime & Government Investigations

USA Guide 2026 : Illinois


Mayer Brown LLP

Rankings

Chambers Review

Provided by Chambers

Litigation: White-Collar Crime & Government Investigations - Illinois

Band 3

Band 3


What the Team is Known For

Mayer Brown LLP has a highly regarded Chicago practice with strength across the gamut of litigation issues. Broad civil, regulatory and criminal expertise includes acting on FCPA, False Claims Act and grand jury investigations, as well as product liability and antitrust disputes. It possesses considerable trial ability and experience, and regularly represents clients in governmental investigations. The team attracts an impressive roster of major financial services and pharmaceutical companies, as well as defending individual executives facing criminal proceedings. It offers particular strength in the technology, sports and automotive industries.

Work Highlights

Provided by Chambers

  • Mayer Brown LLP represented a public company and individual witnesses in connection with the investigation into public corruption allegations against Former Speaker Madigan.

Notable Practitioners

Provided by Chambers

  • Senior StatespeopleVincent J Connelly
    Senior StatespeopleVincent J Connelly

    Vincent J Connelly

    Vincent Connelly provides expert counsel on high-stakes investigations into allegations such as bribery and corruption, as well as advising on civil disputes.
  • Band 2Gregory Deis
    Band 2Gregory Deis

    Gregory Deis

    Gregory Deis regularly advises on investigations brought by state and federal agencies into claims of fraud, bribery, corruption and securities-related matters.
    • Greg is a brilliant and down-to-earth lawyer who is always strategizing.

      Litigation: White-Collar Crime & Government Investigations respondentUSA
    • Greg is very smart and very strategic. He is willing to challenge the government.

      Litigation: White-Collar Crime & Government Investigations respondentUSA

Ranked Individuals at Mayer Brown LLP (2)

Illinois

  • Profile image of Vincent J Connelly

    Vincent J Connelly

    Litigation: White-Collar Crime & Government Investigations

    View profile
  • Profile image of Gregory Deis

    Gregory Deis

    Litigation: White-Collar Crime & Government Investigations

    View profile

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