NASI Difference

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.

Services Provided

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.

North American Security and Investigations, Inc. ("NASI") is a full-service firm that fulfills all types of investigative assignments, including field investigative services in the areas of general liability, workers' compensation (both AOE/COE and sub-rosa), automobile collision investigations & reconstructions, due diligence work for law firms, and personnel investigations for numerous clients. NASI's principals have over 90 years of combined experience in conducting or supervising all aspects of the investigative arena.
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