For more than half a century, FORTUNE 500 ® firms, industrial facilities, and public utilities have relied on 
Day & Zimmermann to safeguard their people, assets and business continuity. Through its network of regional support offices and client-based locations, Day & Zimmermann delivers a comprehensive portfolio of security solutions to specialty markets and facilities:
- Armed and Unarmed Guard Services
- Uniformed Security
- Executive Protection
- Special Event Security
- Risk and Loss Prevention Consulting
- Investigations
- Reception, Mail Delivery and Shuttle Services
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