Norfolk Southern

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

• Railroad Companies
• Railroad Contractors

North American Industry Classification System (NAICS) Categories:

• Industrial Building Construction > Railroad & Subway Construction > Railroad Contractors
• Line-Haul Railroads

Standard Industry Classification (SIC) Categories:

• Heavy Construction, Nec > Railroad & Subway Construction > Railroad Contractors
• Railroads, Line-Haul Operating