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- You Name It and We Will Secure It
- Our 437 nationwide field offices are at your service
  
  No matter where or when or why you need Security Guards, National Security Service (NSS) is your one stop source for nationwide security guard solutions.
  
  As a recognized leader in the field, nationwide, with 437 offices spanning all 50 states, National Security Service stands ready to provide you with the highest level of service available –reliably, affordable, and carefully tailored to your precise needs.
  (888) 386-4068
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