Department profile
Gibson, Dunn & Crutcher LLP

Litigation: Securities

USA Guide 2026 : District of Columbia

Share profile

Gibson, Dunn & Crutcher LLP

Rankings

About

Provided by Gibson, Dunn & Crutcher LLP

To learn more about our practice, please visit gibsondunn.com.

Chambers Review

Provided by Chambers

Litigation: Securities - District of Columbia

Band 1

What the Team is Known For

Gibson, Dunn & Crutcher has a formidable litigation practice with considerable experience in commercial matters, securities disputes and appellate work. It fields an enviable bench of talented lawyers who maintain sophisticated practices incorporating class action defense and constitutional law. The firm is adept across a range of sectors, with environmental and telecommunications among its particular specialties. It also has excellent capabilities in large cross-border litigation and investigations.

View ranking table

Work Highlights

Provided by Chambers

  • Gibson, Dunn & Crutcher represented The Charles Schwab Corporation in class actions challenging its cash-sweep program.

Strengths

Provided by Chambers

  • They do a very good job managing situations that are challenging, with a lot of moving parts and parties.

    Litigation: Securities respondentUSA

  • The team, top to bottom, is excellent.

    Litigation: Securities respondentUSA

  • The team is extremely responsive. In terms of service, they are the best.

    Litigation: Securities respondentUSA

  • Gibson, Dunn & Crutcher is consistently recognized as a leader in securities litigation. All team members have significant experience and a dedicated work ethic.

    Litigation: Securities respondentUSA

  • They are seasoned trial lawyers, who can go toe-to-toe with anyone and have all the resources to handle any matter you can possibly give them.

    Litigation: Securities respondentUSA

Notable Practitioners

Provided by Chambers

  • Jason J Mendro
    Jason J Mendro

    Jason J Mendro

    Jason Mendro is a highly accomplished securities litigator. His practice includes derivative class actions at both the trial and appellate stages, as well as shareholder lawsuits related to cybersecurity and data breaches.

    • He is a very strong communicator and strategist.

      Litigation: Securities respondentUSA

    • Jason is incredibly client-friendly and his courtroom skills are brilliant. He is incredibly gifted in writing and terrific in communication.

      Litigation: Securities respondentUSA

    • Jason is very good at directing high-level strategy. He is a superb lawyer.

      Litigation: Securities respondentUSA

    • He is a team leader with on-point experience and a keen sensitivity to client needs.

      Litigation: Securities respondentUSA
    View profile
  • Joseph Warin
    Joseph Warin

    Joseph Warin

    Joseph Warin is widely recognized for his excellence across civil and criminal matters. He retains an active practice in securities litigation, handling major class actions and derivative suits attached to regulatory investigations. He is deeply experienced in both federal litigation and international arbitration.
    View profile
  • Helgi C Walker
    Helgi C Walker

    Helgi C Walker

    Helgi Walker co-chairs the global litigation practice group and the administrative law and regulatory practice group at Gibson, Dunn & Crutcher. She has extensive experience in appellate law and regulatory disputes.

    • Helgi is exceptionally smart, tenacious and creative. She is very good at pushing novel ideas to help drive decision-making and outcomes.

      Litigation: Securities respondentUSA

    • Helgi is a really good lawyer who gets some big results.

      Litigation: Securities respondentUSA
    View profile
  • Elizabeth Papez
    Elizabeth Papez

    Elizabeth Papez

    Elizabeth Papez, a former deputy assistant to the Attorney General at the DOJ, is an experienced litigator who regularly advises on complex cases, with a particular specialty in class action defence and federal antitrust work.

    • She is winning big matters.

      Litigation: Securities respondentUSA

    • Elizabeth is great and very good with clients.

      Litigation: Securities respondentUSA
    View profile

Ranked Individuals at Gibson, Dunn & Crutcher LLP (4)

District of Columbia

Members

Provided by Gibson, Dunn & Crutcher LLP

Gibson, Dunn & Crutcher LLP has rankings in the following guides

What success is built on

Chambers is the leading data and intelligence partner for the legal sector.

Explore thought leadership