J & K Lock and Security Professionals, Inc.
636 S. Park Street
Madison, WI 53715
608-255-5799
Fax: 608-255-2300

Mid-Wisconsin Security, Inc.
4506 Regent Street
Madison, WI 53705
608-233-5039

Per Mar Security
5001 University Avenue, Suite 3
Madison, WI 53705-1359
608-238-9295

SecurityLink from Ameritech
1302 Regent Street
Madison, WI 53715
608-255-1201
Fax: 608-255-6304