2012

  • Arnold & Porter
  • Crowell & Moring
  • Hunton & Williams
  • Latham & Watkins
  • Littler Mendelson
  • Orrick, Herrington & Sutcliffe
  • Mintz, Levin, Cohn, Ferris, Glovsky & Popeo
  • Perkins Coie
  • Reed Smith
  • WilmerHale

2011

  • Arnold & Porter
  • Covington & Burling
  • Dorsey & Whitney
  • Kirkland & Ellis
  • Mayer Brown
  • Mintz Levin
  • Perkins Coie
  • Pillsbury
  • Sidley Austin
  • WilmerHale

2010

  • Arnold & Porter
  • Debevoise
  • Dorsey & Whitney
  • Kirkland & Ellis
  • Mayer Brown
  • Mintz Levin
  • Perkins Coie
  • Sidley Austin
  • Steptoe & Johnson
  • WilmerHale

2009

  • Arnold & Porter
  • Cleary Gottlieb
  • Covington & Burling
  • Jenner & Block
  • Katten
  • Mayer Brown
  • Munger
  • Patton Boggs
  • Sidley Austin
  • WilmerHale

2008

  • Arnold & Porter
  • Covington & Burling
  • Debevoise
  • Dorsey & Whitney
  • Gibson Dunn
  • Kirkland & Ellis
  • Kramer Levin
  • Mintz Levin
  • Perkins Coie
  • WilmerHale

2007

  • Akin Gump
  • Arnold & Porter
  • Covington & Burling
  • DLA Piper
  • Faegre Baker Daniels
  • Jenner & Block
  • Mayer Brown
  • Mintz Levin
  • Proskauer
  • Quarles & Brady

2006

  • Arnold & Porter
  • Cleary Gottlieb
  • Covington & Burling
  • Cravath
  • Debevoise
  • Gibson Dunn
  • Paul Hastings
  • Ropes & Gray
  • Simpson Thacher
  • WilmerHale