Gibson Dunn was ranked first for Antitrust in California, and partner Robert Cooper was ranked first among California Antitrust attorneys, by Chambers USA's America's Leading Business Lawyers 2004-2005 Guide.  In addition, Gibson Dunn placed among the leading Antitrust law firms in the District of Columbia, and a total of eight Gibson Dunn partners were selected as leading Antitrust attorneys for California, the District of Columbia and Texas.  Complete details are available on the Chambers site from the links below.

Chambers & Partners USA
America's Leading Business Lawyers 2004-2005
Antitrust Rankings

California - Antitrust

California Ranked Firms
#1 Gibson, Dunn & Crutcher

California Ranked Attorneys - Antitrust
#1 Robert Cooper
#2 Gary Spratling
#2 Daniel Swanson
#4 Peter Sullivan

District of Columbia - Antitrust

DC Ranked Firms
#3 Gibson, Dunn & Crutcher

DC Ranked Attorneys - Antitrust
#3 James Loftis
#4 Joseph Kattan
#5 Michael Denger

Texas - Ranked Attorneys - Antitrust 
#3 Sean Royall