If you don't see the service you require, contact our office. Even if we don't provide the service you seek, we may be able to offer you an alternative service that will meet your needs.

  • Pre-Employment Background Screening
  • Domestic Employment Searches
  • Sub-Rosa (Surveillance)
  • Worker's Compensation Fraud Investigations
  • Criminal History Searches
  • AOE/COE Investigations
  • Workplace Investigations
  • Asset Searches
  • Security Consulting
  • Security Services


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NASI Difference

NASI representatives are in constant contact with client representatives regarding ongoing and completed investigations

NASI can be distinguished from other investigation firms through several factors. NASI principals have a breadth of experience and expertise in conducting field surveillance in the City of Los Angeles through their many years of distinguished service as high-ranking Los Angeles Police Department command staff officers, and now utilize this experience in the private sector throughout the United States.