Agriculture

  • Cargill, Inc.

  • CHS, Inc.

  • ConAgra Foods, Inc.

AUTOMOTIVE

  • Mercedes Benz of North America

  • Volkswagen of America, Inc.

CONTRACTOR

  • JH Larson Electric Co.

  • MLC Construction

  • Peter Kiewit Sons Inc.

  • Sharpe Enterprises

ENERGY

  • Missouri River Energy Services

  • Northern Natural Gas Co.

  • Ottertail Corp

  • Williams Pipe Line Co.

FINANCIAL

  • Citibank, NA

  • Citicorp Credit Services, Inc.

  • Consumer Portfolio Services, Inc.

  • Marine Midland Bank

  • Merrill, Lynch, Pierce, Fenner & Smith

  • NationsBank

  • Transamerica Cos.

GOVERNMENT

  • City of Sioux Falls

INSURANCE

  • 1st Auto & Casualty Insurance Company

  • Acuity Insurance

  • Allied Mutual Insurance Company

  • AIG

  • Celtic Insurance Co.

  • CIGNA

  • CNA Insurance

  • Continental Insurance Co.

  • Continental Western Group

  • Crum & Forster

  • EMC Insurance Companies

  • Farmers Mutual Insurance of Nebraska

  • Farmland Mutual Insurance Co.

  • GlaxoSmithKline

  • Liberty Mutual Insurance Co.

  • Mutual of New York

  • Nationwide Insurance

  • North Star Mutual Insurance

  • Progressive Insurance Companies

  • The Hartford

  • Travelers Insurance Co.

  • Underwriters at Lloyd's, London

  • USAA Insurance Co.

MANUFACTURING

  • Boise Cascade

  • Carlisle Companies, Inc.

  • Emerson Electric Co.

  • Fina Oil & Chemical Co,

  • Mentor Corporation

  • Robert Shaw Controls Co.

RETAIL

  • Menards

  • Sears

TECHNOLOGY

  • Cendant Mobility Services

  • IBM Corp

  • 3M Co.

  • Unisys Corp

TRANSPORTATION

  • Union Pacific Railroad

  • United Airlines, Inc

  • UPS