Looking Out For You Since 1973

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Corporate Headquarters – National

1600 North Mission St.
Mount Pleasant, MI 48858

Phone 24 Hours: 1-800-860-1STT

Fax : 989.772.9323

For fastest service, please direct your inquiry to the appropriate department:

All ServicesĀ Sales / Quotes
sales@sttsecurity.com

InvestigativeĀ Department
investigations@sttsecurity.com

Human Resources
hr@sttsecurity.com

Payroll Department
payroll@sttsecurity.com

Accounting Department
accounting@sttsecurity.com

General Information
info@sttsecurity.com