Mayer Brown6DLA Piper5White & Case5Gibbons4Simpson Thacher & Bartlett4Cleary Gottlieb Steen & Hamilton3Cooley3Skadden, Arps, Slate, Meagher & Flom3Davis Polk & Wardwell2Debevoise & Plimpton2Andrews Kurth1Arnold & Porter1Dorsey & Whitney1Duane Morris1Fulbright & Jaworski1Hogan Lovells1Nixon Peabody1Shearman & Sterling1