Leidos

Leidos is also listed under the following categories: Standard Yellow Pages Heading (SYPH) Categories:

• Engineers Consulting
• Security Agencies

North American Industry Classification System (NAICS) Categories:

• Engineering Services > Engineers Consulting
• Security Guards And Patrol Services > Security Consultants & Agencies > Security Agencies

Standard Industry Classification (SIC) Categories:

• Detective Guard & Armored Car Services > Security Consultants & Agencies > Security Agencies
• Engineering Services > Engineers Consulting