Signal Service

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

• Electric Equipment & Systems
• Consultants - General

North American Industry Classification System (NAICS) Categories:

• Electrical Apparatus And Equipment, Wiring Supplies, And Related Equipment Merchant Wholesalers
• Other Management Consulting Services

Standard Industry Classification (SIC) Categories:

• Electrical Apparatus & Equipment
• Business Consulting Services, Nec