This Old House

This Old House is also listed under the following categories: Standard Yellow Pages Heading (SYPH) Categories:

• Architects
• Commercial Builders & Contractors

North American Industry Classification System (NAICS) Categories:

• Commercial And Institutional Building Construction
• Architectural Services

Standard Industry Classification (SIC) Categories:

• General Contractors - Nonresidential Buildings, Other Than Industrial Buildings And Warehouses > Commercial Building Design & Planning Contractors > Commercial Builders & Contractors
• Architectural Services