Company List
- Caterpillar Inc.
- Ford Motor Company
- Honda Motor Company
- Delphi Packard
- New York Power and Light
- Entergy Power
- Aes Power
- Con Ed Power
- Brown and Root
- Tobin Brothers Mechanical
- Keystone Steel and Wire
- U.S. Steel
- Kolbe Steel
- Komatsu
- Phelps-Dodge Corporation
- Intregrated Technology
- Terra International
- University of Chicago
- University of Nebraska
- Enercon
- Dravo Lime Co.
- Beaver Excavation
- Independent Excavation
- American Pest Control
- American Inland Marine
- Rotec International
- Rinderhneckt Construction
- Granite Construction
- Sjostrom construction
- Ragan Communication
- Illinois American Water
- William Brothers Construction
- Simplex
- Springfield School District
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Golf Courses and Country Clubs
- Chicago Park District
- Rockford Park District
- Naperville Country Club-Naperville, Ill.
- Oakbrook Golf Club-Oak Brook Ill.
- Oak Grove Golf Course-Harvard Ill. *
- Wolf Creek Golf Course-Dwight Ill.
- Peoria Park District-Peoria, Ill.
- River Forest County Club-Elmhurst, Ill.
- Chicago Hghts Park District-Chicago, I
- Chicago Golf Club-Wheaten, Ill.
- Pottawattame Golf Club-St. Charles, Ill
- St. Clair Country Club-Belleville, Ill.
- Mt. Hawley Country Club, Peoria, Ill.
- Golfmor Golf Course-Frankfort, Ill.
- Prestwick Country Club-Albany Ill
- Red Tail Golf Club-Lakewood, Ill.
- Cragun’s Golf & Resort-Brainerd Minn.
- Woodstock Country Club-Woodstock
- Calumet Country Club- Calumet Ill.
- Rock Island Arsenal, Rock Island Ill.
- Crystal Lake Country Club, Ill
- Ruth Lake Country Club, Ill
- Marengo Country Club, Ill
- Dell Webb Corporation, Ill
- Ruth Lake C.C. Ill
- Morton Arboretum, Ill
- Midlothian C.C., Ill.
- Buffalo Grove, Ill
- Indian Springs, Ill
- Ridgemoor, Ill
- Fort Byron Hill, Ill
- Broken Arrow
- Twin Orchard
* Audubon Certified Courses
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