Texas United Service

Texas United Service is also listed under the following categories: Standard Yellow Pages Heading (SYPH) Categories:

• Air Conditioning Contractors
• Mechanical Research & Development

North American Industry Classification System (NAICS) Categories:

• Plumbing, Heating, And Air-Conditioning Contractors > Air Conditioning Contractors
• Research And Development In The Physical, Engineering, And Life Sciences > Technological Research & Development > Mechanical Research & Development

Standard Industry Classification (SIC) Categories:

• Plumbing, Heating And Air Conditioning > Air Conditioning Contractors
• Commercial Physical & Biological Research > Technological Research & Development > Mechanical Research & Development