Guardsmark

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

• Detective Agencies
• Security Guard & Patrol Services

North American Industry Classification System (NAICS) Categories:

• Investigation Services > Investigators & Detective Services, Private > Detective Agencies
• Security Guards And Patrol Services

Standard Industry Classification (SIC) Categories:

• Detective Guard & Armored Car Services > Guard & Patrol Services
• Detective Guard & Armored Car Services > Investigators & Detective Services, Private > Detective Agencies