Headquarters (St. Paul, MN)
1717 University Ave W
St. Paul, MN 55104
Office: 651.644.1155
Dispatch: 800.403.1155
Sales/Marketing: stpaul-sales@americansecurityllc.com
HR: contacthr@americansecurityllc.com

American Security
24/7 Response Center
Phone: 800.403.1155

Des Moines, IA
2801 Bell Ave.
Des Moines, IA 50321
Phone: 515.245.4370
Fax: 515.245.4380
Operations: desmoines-ops@americansecurityllc.com
Sales/Marketing: desmoines-sales@americansecurityllc.com

Madison, WI
418 Oak Street
Madison, Wi 53704
Phone: 608.222.0700
Toll-Free: 800.506.9269
Fax: 608.222.0076
Operations: madison-ops@americansecurityllc.com
Sales/Marketing: madison-sales@americansecurityllc.com

Milwaukee, WI
124 N 121st St.
Milwaukee, WI 53226
Phone: 414.302.3000
Fax: 414.302.3015
Operations: milwaukee-ops@americansecurityllc.com
Sales/Marketing: milwaukee-sales@americansecurityllc.com

Winter Park, FL
As of August 1st, our new office address will be:
1313 W. Fairbanks Ave.
Suite 200-A
Winter Park FL 32789
Main: 386.585.0965
Dispatch: 800.403.1155
Sales/Marketing: florida-sales@americansecurityllc.com

Omaha, NE
7101 Mercy Road
Omaha, NE 68106
Phone: 402.551.1111
Fax: 402.597.1668
Operations: omaha-ops@americansecurityllc.com
Sales/Marketing: omaha-sales@americansecurityllc.com

Phoenix, AZ
4202 E. Elwood Street, Suite #33
Phoenix, AZ 85040
Toll Free: 800.403.1155
Fax: 651.523.6739
Operations: phoenix-ops@americansecurityllc.com
Sales/Marketing: phoenix-sales@americansecurityllc.com

Chicago, IL
159 N Sangamon, Suite 200
Chicago IL 60607

Marsden Services is a full spectrum facility services provider, offering janitorial, security, building maintenance, and specialty property services throughout the United States.American Security is a Marsden Services company. Marsden is a full spectrum facility services provider, offering janitorial, security, building maintenance, and specialty property services throughout the United States. Through American Security’s combined national support and local operations, we provide our clients with the strength of a large corporation with the individualized care of a small business.

Marsden is one of the largest privately owned facility service providers in the United States. Marsden has over 50 offices throughout the United States and employs more than 10k people. Marsden has thousands of clients across the country and services over 300M square feet every day.
Despite Marsden’s national scope, Marsden focuses on the local markets in which it has acquisitions and office locations. Each office is invested in its community and local clients, providing personalized service. Like a small, local company, the regional offices make decisions on all aspects of their service operations and are empowered to manage their teams and respond to all client needs and requests.
Marsden’s local operating companies have the benefit of leveraging Marsden’s resources as a large organization – including staff, technology, equipment, supplies, information, industry experts, and financial support.
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