National Security Guard

About National Security Guard

National Security Industries is a privately owned and operated provider of Security Guard Services. Headquartered in San Jose, CA. with additional locations in San Francisco, Santa Cruz, Sacramento, San Diego, and Los Angeles, CA. National Security Industries is a state licensed 24/7 Professional Specialized Security Guard Agency. Established in 1995. With a staff of 400 trained guards we service a diverse client base throughout The Western Region. Today, National Security Industries provides security services to a group of 100+ clients. We employ and develop security professionals throughout California, Colorado, and Arizona. Where others see only challenges, NSI sees opportunities to create complete solutions thar deliver strategic benefit to our clients.