First Systems Inc.

First Systems Inc. is also listed under the following categories: Standard Yellow Pages Heading (SYPH) Categories:

• Cleaning Service

North American Industry Classification System (NAICS) Categories:

• Other Services To Buildings And Dwellings > Cleaning Services
• Commercial And Industrial Machinery And Equipment (Except Automotive And Electronic) Repair And Maintenance > Cleaning Services

Standard Industry Classification (SIC) Categories:

• Building Cleaning & Maintenance Services, Nec
• Repair Shops And Related Services, Nec > Cleaning Services