Abbott Capital Adams Street Partners Alchemy Partners Allied Capital Alothon Group Americans for Prosperity and AFP Foundation Arkansas Teacher Retirement System Berns Communications Blumberg Capital BP Calder Capital Partners Chestnut Hill Partners Citigroup Global Markets Private Equity Group Coller Capital Columbia West Capital Conduit Capital Partners Credit Suisse First Boston Cue Capital, Department of Finance City of New York DOWNER & CO DROEGE & CO Evelyn Brust Financial Research & Education Foundation FactSet Mergerstat, LLC First American Title Insurance Company of New York Foley & Lardner FOP National Pension Committee Founders Equity FridsonVision GarMark GTCR Golder Rauner HEC Paris

Hedges Capital, Inc. Inventis Investment Holdings (China) Ltd INVESTIGATIVE MANAGEMENT GROUP Jayhawk Capital Management Jewish Federation of Chicago KADE GROUP Kirkland & Ellis KPMG Krauter & CO Landmark Partners Levensohn Venture Partners Midwest Mezzanine Funds Millennium Technology Ventures Monetary Authority of Singapore New Energy Capital New York State Comptroller OMERS Capital Partners Pension Benefit Corporation Plainfield Asset Management Pomona Capital Rothstein Kass Sands Brothers Venture Capital Sonnenschein Nath & Rosenthal Sterling Investment Partners Stockwell Capital Syncom Venture Partners Technology Partners Touchstone Group Watson Wyatt Willowridge Incorporated