Case Corporation
700 State Street
Racine, WI 53404-
Telephone: 414-636-6672
Fax: 414-636-6294
http://www.casecorp.com/

Caterpillar Inc.
100 N.W. Adams St.
Peoria, IL 61629-
Telephone: 309-675-1000
Fax: 309-675-1342
http://www.caterpillar.com/

Hitachi Construction Machinery America Corp.
Telephone: 281-821-2400
Fax: 281-230-7776
http://www.hitachi.com/

John Deere Construction Equipment
1175 E. 90th Street
Davenport, IA 52809-
Telephone: 309-765-0155
Fax: 309-748-0114
http://www.deere.com/

Komatsu America International Company
440 N. Fairway Dr.
Vernon Hills, IL 60061-
Telephone: 847-970-4100
Fax: 847-972-4102
http://www.komatsu.com/

Melroe Company
PO Box 6019
Fargo, ND 58108-6019
Telephone: 701-241-8700
Fax: 701-241-8704
http://www.bobcat.com/

New Holland North America Inc.
500 Diller Ave.
New Holland, PA 17557-0903
Telephone: 717-355-3835
Fax: 717-355-3600
http://www.newholland.com/

Terramite
Telephone: 304-776-4231
Fax: 304-776-4845
http://www.terramite.com/

The Charles Machine Works Inc.
1959 W. Fir St.
Perry, OK 73077-
Telephone: 405-336-4402
Fax: 580-336-5560
http://www.ditchwitch.com/