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

• Computers Networks
• Telephone Equipment Sales & Service

North American Industry Classification System (NAICS) Categories:

• Radio, Television, And Other Electronics Stores > Telephone & Communication Equipment > Telephones Equipment & Systems
• Computer And Software Stores > Multimedia & Networking Devices & Products > Networking Products
• Communication Equipment Repair And Maintenance > Electronic Equipment Repair, Except Computers > Telephones Equipment & Systems Repair

Standard Industry Classification (SIC) Categories:

• Computer And Computer Software Stores > Multimedia & Networking Devices & Products > Networking Products
• Miscellaneous Retail Stores, Nec > Telephone & Communication Equipment > Telephones Equipment & Systems
• Electrical And Electronic Repair Shops, Nec > Electronic Equipment Repair, Except Computers > Telephones Equipment & Systems Repair