LAWYER PROFILE
William O'Brien

William O'Brien

USA 2026

Chambers ranking badge
Share profile
Chambers ranking badge
Paul, Weiss, Rifkind, Wharton & Garrison LLP
 Paul, Weiss, Rifkind, Wharton & Garrison LLP

Ranked in 1 practice area

Environment: Mainly Transactional

New York

7 years ranked

About

Provided by Paul, Weiss, Rifkind, Wharton & Garrison LLP

USA

Practice Areas

Attorney bio can be found here:

https://www.paulweiss.com/professionals/partners-and-counsel/william-j-obrien

Chambers Review

Provided by Chambers

Chambers Guide to the USA

Environment: Mainly Transactional - New York

Band 2
Individual Editorial

William O'Brien works with funds on the environmental aspects of significant corporate transactions.

Learn more about this teamView ranking table

Strengths

Provided by Chambers

  • Bill O'Brien understands the practice and is commercial.

    Environment: Mainly TransactionalChambers Guide to the USA

  • Bill O'Brien is great to work with and communicates complicated regulatory and legal matters clearly.

    Environment: Mainly TransactionalChambers Guide to the USA

Ranked Individuals at Paul, Weiss, Rifkind, Wharton & Garrison LLP (150)

California

  • Profile image of Melinda Haag
    Melinda Haag

    Litigation: White-Collar Crime & Government Investigations

    View profile
  • Profile image of Walter F Brown Jr
    Walter F Brown Jr

    Litigation: White-Collar Crime & Government Investigations

    View profile
  • Profile image of Randy Luskey
    Randy Luskey

    Litigation: White-Collar Crime & Government Investigations

    View profile
  • Profile image of Joshua Hill
    Joshua Hill

    Litigation: White-Collar Crime & Government Investigations

    View profile

Delaware

District of Columbia

Illinois

New York

What success is built on

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

Explore thought leadership