Contact Us

IOI Headquarters
25325 Leer Dr.
Elkhart, IN, 46514

Main: (574) 262-2800
Toll Free: (888) 697-0021
Main Fax: (574) 206-0072
Tax Fax: (574) 206-2369

IOI
P.O. Box 2808
Elkhart, IN 46515

Tax Department
P.O. Box 2868
Elkhart, IN 46515


Chicago Location
225 West Washington
Suite 2200
Chicago, IL 60606

Main: (312) 924-2885
Fax: (312) 924-0201


Fort Wayne Location
6429 Oakbrook Parkway Suite A
Fort Wayne, IN 46825

Main: (260) 471-4746
Fax: (260) 471-4981


Grand Rapids Location
Kentwood Corporate Complex
4595 Broadmoor
Suite 295
Kentwood, MI 49512

Main: (616) 871-0713
Fax: (616) 871-0717

Tampa Location
3111 W. Dr. Martin Luther King Jr., Blvd.
Suite 100
Tampa, FL 33607

Main: (813) 350-7836
Fax: (813) 350-7801

Phoenix Location
1414 West Broadway Rd.
Suite 220
Tempe, Arizona 85282

Main: (480) 619-4110
Fax: (480) 619-4115

Customer Service
For customer service questions and concerns please fill out this form.

IOIPay™ Sign-up
Click here to sign up for our IOIPay service. You will be contacted by a sales representative, who will help you get started.

HR Essentials Sign-up
To sign up for IOI's HR Essentials, please fill out this form. You will be contacted by a sales representative, who will help you get started.

Other Inquiries
For all other questions, comments or suggestions, please fill out this form.