Corrosion Control Consultants and Labs

Corporate Headquarters and Laboratory

Sarah Olthof - Branch Manager
4403 Donker Court SE
Kentwood, MI 49512

(616) 940-3112 phone
(616) 940-8139 fax
e-mail

Satellite Offices

GPI - New Jersey Office

Chris Farschon
106 North Main Street
Cape May Court House, NJ 08210
(609) 536-8019
e-mail

Michigan Office

Sarah Olthof - Branch Manager
4403 Donker Court SE
Kentwood, MI 49512

(616) 940-3112 phone
(616) 940-8139 fax
e-mail

GPI - Annapolis Junction, MD

Dr. Lloyd Smith, PhD
10977 Guliford Road
Annapolis Junction, MD 20701
(410) 880-3055
e-mail