Duffie Contracting

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

• Excavating Contractors
• Construction
• Water, Sewer & Utility Lines

North American Industry Classification System (NAICS) Categories:

• Water And Sewer Line And Related Structures Construction
• Other Heavy And Civil Engineering Construction
• Site Preparation Contractors

Standard Industry Classification (SIC) Categories:

• Constructing Water, Sewer, Power, & Communication Lines And Pipelines
• Heavy Construction, Nec
• Excavation Work