- Mailing Address:
- Harco National Insurance Company
P.O. Box 68309
Schaumburg, IL 60168-0309
- Street Address:
- Harco National Insurance Company
9th Floor
2850 West Golf Road
Rolling Meadows, IL 60008
- Phone and Fax Numbers - Other than Claims:
- 1-800-448-4642 (Toll-free phone)
1-847-321-4810 (Fax)
- Phone and Fax Numbers - Claims:
- 1-800-822-4429 (Toll-free phone)
1-847-472-6015 (Fax)
- Technical Support
- 1-847-472-7945
websupport@iat-harco.com