Industry Sector


Total Companies


Est. Employment



Special trade contractors primarily engaged in excavation work and digging foundations, including digging and loading. Contractors in this industry may also perform incidental concrete work.


SIC Code 1794 - Excavation Work is a final level code of the “Construction” Division. There are 27,890 companies classified in this industry in the USA with an estimated employment of 251,113 people.

Industry Examples

Common types of examples within SIC Code 1794 - Excavation Work are:

  • Excavation work - contractors
  • Foundation digging (excavation) - contractors
  • Grading: except for highways, streets, and airport runways - contractors


For some business types, there may be a similar industry to SIC Code 1794 - Excavation Work that is a better classification match.

Contractors primarily engaged in concrete work are classified in Industry 1771; and those primarily engaged in trenching or in earth moving and land clearing not related to building construction are classified in Major Group 16

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Extended SIC Code Categories for SIC 1794

For business marketing and targeting, SIC Codes have been extended to provide more specific classifications within SIC Code 1794 – Excavation Work. Extended SIC Codes are being continuously updated to reflect the current business environment.

6-digit SIC

  • 179401 Landfill Demolition
  • 179402 Foundation-Drilling Contractors
  • 179403 Excavating Contractors
  • 179404 Bulldozing
  • 179405 Foundation-Contractors
  • 179406 Contractors-Site Development
  • 179407 Land Clearing & Leveling
  • 179408 Dirt Contractors
  • 179409 Slabjacking Contractors
  • 179410 Site Development Contractors
  • 179411 Dozer Service
  • 179412 Earth Energy

7-digit SIC

  • 1794001 Excavating Contractors
  • 1794002 Foundation-Drilling Contractors
  • 1794003 Landfill Demolition
  • 1794004 Bulldozing
  • 1794005 Foundation-Contractors
  • 1794006 Contractors-Site Development
  • 1794007 Land Clearing & Leveling
  • 1794008 Dirt Contractors
  • 1794009 Slabjacking Contractors
  • 1794010 Site Development Contractors
  • 1794011 Dozer Services
  • 1794012 Earth Energy

8-digit SIC

  • 17940000 Excavation Work
  • 17949901 Excavation And Grading, Building Construction