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Haberberger
A Haberberger technician welds a section of cast iron pipe at the company's new piping facility.
A Haberberger technician welds a section of cast iron pipe at the company's new piping facility.
A Haberberger technician welds a section of cast iron pipe at the company's new piping facility.
A Haberberger technician welds a section of cast iron pipe at the company's new piping facility.
A Haberberger technician welds a section of cast iron pipe at the company's new piping facility.

Tale of Two Giants

April 28, 2023
Southland Industries
The new Central Records Complex (CRC) located in Winchester, Virginia.
The new Central Records Complex (CRC) located in Winchester, Virginia.
The new Central Records Complex (CRC) located in Winchester, Virginia.
The new Central Records Complex (CRC) located in Winchester, Virginia.
The new Central Records Complex (CRC) located in Winchester, Virginia.
Harris Co.
A large prefabricated piping assembly for the Minneapolis Bus Garage job. Note the worker in back for scale.
A large prefabricated piping assembly for the Minneapolis Bus Garage job. Note the worker in back for scale.
A large prefabricated piping assembly for the Minneapolis Bus Garage job. Note the worker in back for scale.
A large prefabricated piping assembly for the Minneapolis Bus Garage job. Note the worker in back for scale.
A large prefabricated piping assembly for the Minneapolis Bus Garage job. Note the worker in back for scale.
Photo 79465229 © Prasit Rodphan | Dreamstime.com
Dreamstime S 79465229
Dreamstime S 79465229
Dreamstime S 79465229
Dreamstime S 79465229
Dreamstime S 79465229
McKinstry
210929 1930 Boren 017
210929 1930 Boren 017
210929 1930 Boren 017
210929 1930 Boren 017
210929 1930 Boren 017
John W. Danforth Co.
Buffalo Welding Shop
Buffalo Welding Shop
Buffalo Welding Shop
Buffalo Welding Shop
Buffalo Welding Shop
Cannistraro
Img 4919 Promo
Img 4919 Promo
Img 4919 Promo
Img 4919 Promo
Img 4919 Promo
Four of TDI's employee-partners. Phot: TDIndustries
Wic Week Updated
Wic Week Updated
Wic Week Updated
Wic Week Updated
Wic Week Updated

2015 Book of Giants - Top Ten Companies by Type of Work

May 8, 2015
The largest mechanical contractors in the nation, broken out by the type of work they do.

The largest mechanical contractors in the nation, broken out by the type of work they do.

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