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President

Bob Henderson

Direct: (734) 761-5001
Toll-free: (800) 959-0329 Ext. 5001
E-mail: bhenderson@gfg-inc.com

 
Director of
Sales and Marketing

Lars Boettern

Direct: (734) 761-5280
Toll-free: (800) 959-0329 Ext. 5280
E-mail: lboettern@gfg-inc.com
West Coast

Michael Calvo

Direct: (734) 761-5053
Toll-free: (800) 959-0329 Ext. 5053
Mobile: (714) 425-3661
E-mail: mcalvo@gfg-inc.com
Upper Midwest & East Coast

Mark Gonyea

Direct: (734) 761-5189
Toll-free: (800) 959-0329 Ext. 5189
Mobile: (734) 604-8300
E-mail: mgonyea@gfg-inc.com
Southeast

Mark Ahrens

Direct: (734) 761-5965
Toll-free: (800) 959-0329 Ext. 5965
Mobile: (469) 628-8513
E-mail: mahrens@gfg-inc.com
South

Bill Kamp

Direct: (734) 761-5881
Toll-free: (800) 959-0329 Ext. 5881
Mobile: (713) 252-0262
E-mail: bkamp@gfg-inc.com
International

Dave Bartley

Direct: (734) 761-5598
Toll-free: (800) 959-0329 Ext. 5598
E-mail: dbartley@gfg-inc.com
Headquarters USA
Ann Arbor		 GfG Instrumentation Inc.

Address:
1194 Oak Valley Drive
Suite 20
Ann Arbor, Michigan 48108
USA

Direct: 001 (734) 769-0573
Toll-free: (800) 959-0329
Fax: 001 (734) 769-1888
E-mail: info@gfg-inc.com
   
Website: www.gfg-inc.com
  Customer
Service		 Dave Bartley
Direct: (734) 761-5598
Toll-free: (800) 959-0329 Ext. 5598
E-mail: dbartley@gfg-inc.com

Ron Manduch

Direct: (734) 761-5239
Toll-free: (800) 959-0329 Ext. 5239
E-mail: rmanduch@gfg-inc.com