O’Melveny Worldwide

O’Melveny Named Leading Law Firm by Chambers USA 2020

April 27, 2020


NEW YORK—April 27, 2020—O’Melveny has once again been recognized as one of the nation’s leading law firms, earning top marks in the prestigious Chambers USA: America’s Leading Lawyers for Business 2020 guide.

Chambers praised 32 O’Melveny practice areas, and honored the firm with the guide’s highest ranking—Band 1—in the category of nationwide ERISA Litigation.

Chambers also singled out 53 O’Melveny lawyers. These elite attorneys earned 62 rankings across four jurisdictions. Eight were awarded Band 1 status, including five who were ranked nationally in their practice areas.

These are the O’Melveny lawyers in the Band 1 tier:

  • Seth Aronson: Litigation (California)
  • Robert Blashek: Tax (California)
  • Brian Boyle: ERISA Litigation (Nationwide)
  • Jeffrey Fisher: Appellate (Nationwide)
  • Ted Kassinger: International Trade (Nationwide)
  • Greta Lichtenbaum: International Trade (Nationwide)
  • Daniel Petrocelli: Litigation and Media & Entertainment (Nationwide, California)
  • Eric Rothenberg: Environmental (New York)

For the ninth consecutive year, Chambers named O’Melveny partner Walter Dellinger to its ranking of “senior statespeople,” a designation given to lawyers with exceptional recommendations in their field. Dellinger was recognized for his contributions to appellate law. In addition, Dan Petrocelli was once again selected as a “star individual” for his litigation work.

“We are proud of our strong showing in 2020 Chambers,” said Bradley J. Butwin, chair of O’Melveny. “These results tell us that our commitment to providing best-in-class legal counsel across practice areas is highly valued by our clients across the nation.”

Highlights of O’Melveny’s practice achievements include:

Ranked Practices (Bands 1 & 2):


  • Antitrust: Cartel (Band 2)
  • ERISA Litigation (Band 1)
  • Insurance: Dispute Resolution—Insurer (Band 2)
  • Product Liability: Consumer Class Actions (Band 2)
  • Projects: PPP (Band 2) California:
  • Antitrust (Band 2)
  • Media & Entertainment: Litigation (Band 2)
  • Media & Entertainment: Transactional (Band 2)

New York:
  • Litigation—General Commercial: Highly Regarded (Band 2)

Ranked Lawyers (Bands 1 & 2):


  • Michael Tubach (Band 2)

Antitrust: Cartel

  • Michael Tubach (Band 2)

Antitrust: Litigation Specialists

  • Walter Dellinger (Senior Statespeople)
  • Jeffrey Fisher (Band 1)

Bankruptcy & Restructuring

District of Columbia:
  • Peter Friedman (Band 2)

Environment: Mainly Transactional

New York:
  • Eric Rothenberg (Band 1)

ERISA Litigation

  • Brian Boyle (Band 1)

Insurance: Dispute Resolution—Insurer

  • Tancred Schiavoni (Band 2)

New York:
  • Tancred Schiavoni (Band 2)

Insurance: Insurer

  • Richard Goetz (Band 2)

International Trade: CFIUS Experts

  • Ted Kassinger (Band 1)

International Trade: Export Controls & Economic Sanctions

  • Greta Lichtenbaum (Band 1)

IT & Outsourcing: Transactions

  • Heather Meeker (Band 2)

Labor & Employment

  • Apalla Chopra (Band 2)

Litigation: General Commercial

  • Daniel Petrocelli (Star Individuals)

Litigation: Securities

  • Seth Aronson (Band 1)

New York:
  • Jonathan Rosenberg (Band 2)

Litigation: Trial Lawyers

  • Daniel Petrocelli (Band 1)

Litigation: White-Collar Crime & Government Investigations

  • Daniel Bookin (Band 2)
  • Steve Olson (Band 2)

New York:
  • Nicole Argentieri (Up and Coming)

Media & Entertainment: Litigation

  • Daniel Petrocelli (Band 1)

Projects: PPP

  • Elizabeth Dubeck (Up and Coming)
  • Denise Raytis (Up and Coming)
  • Eric Richards (Band 2)

Projects: Renewables & Alternative Energy

  • Junaid Chida (Band 2)

Securities: Regulation—Advisory

  • Rob Plesnarski (Band 2)


  • Robert Blashek (Band 1)

About O’Melveny

It’s more than what you do: it’s how you do it. Across sectors and borders, in board rooms and courtrooms, we measure our success by yours. And in our interactions, we commit to making your O’Melveny experience as satisfying as the outcomes we help you achieve. Our greatest accomplishment is ensuring that you never have to choose between premier lawyering and exceptional service. So, tell us. What do you want to achieve? Visit us at omm.com.


Christopher Rieck
O’Melveny & Myers LLP
+1 212 326 2218