T-Systems

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

• Telecommunications Contractors
• Telecommunications Management Services
• Information Technology Services

North American Industry Classification System (NAICS) Categories:

• Electrical Contractors > Electronic & Communications Contractors > Telecommunications Contractors
• Data Processing, Hosting, And Related Services > Information Technology Services
• Office Administrative Services > Computer Facilities Management Services > Telecommunications Management Services

Standard Industry Classification (SIC) Categories:

• Electrical Work > Electronic & Communications Contractors > Telecommunications Contractors
• Computer Processing & Data Preparation & Processing Services > Information Technology Services
• Management Services > Utility & Waste Management Services > Telecommunications Management Services