Information Systems Us

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

• Electric Equipment & Systems
• Telecommunications Services

North American Industry Classification System (NAICS) Categories:

• Electrical Apparatus And Equipment, Wiring Supplies, And Related Equipment Merchant Wholesalers
• Wired Telecommunications Carriers > Telecommunications Services

Standard Industry Classification (SIC) Categories:

• Telephone Communications, Except Radio > Telecommunications Services
• Electrical Apparatus & Equipment