Manufacturing, Distribution and Industrial

• Edlong Dairy Flavors 
• Elkay Manufacturing
• US Wittenstein
• The Coca-Cola Company
• Northrop Grumman
• HAVI Global Solutions
• Perseco
• Acushnet Co.
• W. W. Grainger
• MPC
• Consolidated Metallurgical Industries
• South African Breweries
• Asea Brown Bavari
• AIT Worldwide Logistics
• Alcan
• Cole-Parmer
• Nampak
• Dot Foods
• United Fram Footwear
• Field Fasteners
• RT Associates
• Mission Assurance, NG
• Scholle Packaging Corporation
• Nissan Forklift 

 Banking and Finance

• Alliance Federal Savings
• Blackman Kallick
• Chicago Board Options Exchange
• IFC Credit Corporation
• Nedcor holdings
• First National Bank
• Afrifocus
• ABSA 

 Insurance

• T J Adams (HRH)
• IMRF (Mutual Fund)
• PCIAA
• Liberty Life Insurance Group
• Old Mutual
• State Farm
• Momentum 

 Research

• Argonne National Laboratory
• Independent  Development Research Council, Canada
• Ned Davis Research
• Griffith Laboratories 

 Leasing

• GATX
• LeasePlan
• NES Rentals

Medical, Medical Insurance and Pharmaceutical

• UHC
• Blue Cross Blue Shield
• Loyola University Medical Center
• AstraZeneca
• Adcock Ingram
• Sandringham Gardens (Aged Care)
• Lake County Health Department
• Hines VA 

 Service

• Accenture
• National Productivity Institute
• Heidricks & Struggles
• Sefin Marketing
• Spear Point

 Mining & Extraction

• Middleburg Ferrochrome
• Lonplats
• Douglas Colliery
• Foskor

 Agri-Business

• Market Access Steering Committee
• National Agricultural Marketing Council
• USUTU Pulp Swaziland
• SAPPI
• Erfstuk Farm
• Ball Horticultural Company
• Archer Daniels Midland 

 Automotive

• Porsche
• Ford Motor Company
• Volkswagen
• Atlantic Diesel Engines

 Technology, IT & Telecommunications

• Clinphone
• EOH Holdings
• EDS
• Dimension Data
• MTN
• MNet

 Retail

• CD Peacock
• Esquires Sports
• W.W. Grainger
• PG Glass
• Edgars
• Glasfit
• The Crazy Store 

 Housing

• Kimball Hill Homes
• Smith Senior Living 

 Utilities and Energy

• Eskom Generation, Transmission & Dist.
• Midwest Generation
• Peoples Energy Corporation
• Shell Oil, South Africa
• BHP Billiton Group
• Afric Oil
• Sasol 

 Associations

• American College of Healthcare Executives
• Association of Health Food Services of America
• American Society of Anesthesiologists
• National Association of Realtors
• Society of Food Management
• Quality Association
• American Massage Therapy Association
• Northwest Human Resources Council
• National Council for the Deaf
• Foodservice Consultants Society International
• Parent Teacher Association
• American Bar Association
• Judicial Division
• American Academy of Dermatology
• Four Seasons Health Club
• American Foundry Society 

 Education and Development

• American Management Association (AMA)
• The Caroll-Keller Group, Ltd.
• British Council, European Union
• Crystal Lake School District 47
• Wheeling School District
• Webster University - Chicago
• Graduate Institute of Management & Technology, Henley University (England)
• University of Pretoria
• University of Zululand
• British High Commission
• Vaal University of Technology

Community Organizations / Non-Profits

• Rotary International
• Woman Insight Networking Service
• Mvula Trust
• Independent Development Trust
• National Council for the Deaf
• Zululand Business Foundation
• Stutterers Association
• The Boys & Girls Club of Chicago
• Arbor Day Foundation
• Commission for Conciliation, Mediation and Arbitration of South Africa
• TASC