Abbott, Ameritech, Arthur Andersen, AT&T, Bell South, BlackRock, Business Week, Cancer Treatment Centers of America, Case, Cargill, Cendant, Chubb, Ciba-Geigy, Coca Cola, Colgate Palmolive, Comcast, Conoco-Phillips, Chicago Board of Trade, CIGNA, Disney, Dominion, DuPont, Eli Lilly, Enron, Ernst & Young, ExxonMobil, FMC, Fortune Magazine, Frito Lay (Pepsi), General Electric, Glaxo-Wellcome, General Motors, Givaudan, Harris Bank, Hewlett-Packard, Household Finance, Huber, J&J, Kaiser Permanente, Kidder Peabody, Pfizer, Knight-Ridder, Lever Brothers, Lockheed Martin, Lucent Technologies, I.B.M., Marvell Technologies, McCann-Erickson, McKinsey and Co., Merck, NatWest Bank, Microsoft, New York Life, Novartis, Olympus, Owens-Corning, PacifiCorp, Pacific Mutual, Philips Electronics, Pfizer, Praxair, Procter & Gamble, Ralcorp, Ralston-Purina, Safeguard Scientifics, Shearson, Smith Barney, Timex, Trane, Tyco Electronics, T. Rowe Price, Unocal, UNUM, U.S. Trust, Wells Fargo Bank, Weyerhaeuser, and Woodside Travel Trust.


Asian Development Bank (Philippines), BBC (England), British Petroleum (UK), Corporate Research Forum (England), Domtar (Canada), Dong Energy (Denmark), Dutch Central Bank (Netherlands), European Central Bank (Germany), Ferrero (Germany), Grundfos (Denmark), HSM (Argentina/Brazil), ICICI (India), Infosys (India), ING (Netherlands), Lagoven (Venezuela), Lintas:Worldwide (New York), Fletcher-Challenge (New Zealand), Grundfoss (Denmark), LinKs (Denmark), Microsoft (Asia), Nexen (Canada), Oettinger Davidoff, RGM International (Indonesia), Novozymes (Denmark), Royal Dutch/Shell Group (England and Holland), Samsung (Korea), Sanlam (S Africa), Savola Group (Saudi Arabia), Schneider Electric (France), St. Gobain (France),  Takeda Pharmaceutical (Japan), Unilever (U.K.), Scotia Bank (Jamaica), St. Gobain (France), SwissAir Group (Switzerland), Takeda (Japan), Timex (Norway), Toyota (Japan), UBS (London), Volvo (Sweden), Wolters Kluwer (Netherlands).

Non-Profit:   American Association of Homes and Services for the Aging (AAHSA), Archdiocese of Chicago, Brookings Institution, Cherokee Nation, Church of the Nazarenes, Central Intelligence Agency (CIA), Certified Financial Analysts Society, Credit Union Executives Society (CUES), Defense Logistics Agency, Dutch Central Bank (Amsterdam), Economy League (Philadelphia), FDA, Federal Reserve Bank, GIBS (S Africa), Global Business Travel Association, IARPA, Industrial Research Institute, Knight Foundation, Pharmaceutical Manufacturers Association, Seminarium (Chile, Ecuador), Treasury Dep., U.S. Army Corps of Engineers, Private Label Manufacturers Association, Madinah Institute (Jeddah, Saudi Arabia), Vlerick Business School (Brussels, Belgium).

Board Positions:

Decision Strategies International (Philadelphia & London), Strategic Radar (Philadelphia),VS Holdings (Netherlands),  Vaessen-Schoemaker BV (Netherlands), Decision Education Foundation (Menlo Park, California), Public Salt Inc. (Ohio, USA), SLC (Singapore).