AllianceBernstein Holding L.P.
U.S.-based investment management firm
Xcel Energy Inc.
Electricity and Natural Gas Company serving several Midwestern and Western states. Revenues are $11 billion.
Williams Companies, Inc.
Natural gas pipeline company based in Tulsa, Oklahoma
Watson Wyatt
Watson Wyatt Worldwide, Inc. was a global consulting firm that merged in January 2010 with Towers Perrin to form Towers Watson.
Warner-Lambert Company LLC
Diversified American company acquired by Pfizer in Feb. 2000
W.W. Grainger, Inc.
Distributes maintenance, repair, and operating supplies. Revenues are $12 billion.
