List of Contractors on the Minnesota Capitol Construction, 1896-1907

From Minnesota State Capitol Commissioner’s Board Papers / Minnesota Historical Society Library
All contractors were Minnesota-based companies unless otherwise noted.
Companies listed In chronological order

• August 1896 - George Grant Co./excavation and foundation
• January 1897 - Universal Construction Co./structual iron and steel for basement floor
• August 1897 - Butler-Ryan Co./general contractor and final stage of general construction
• August-October 1897 - Lauer Brothers/concreting the sub basement
• March 1900-December 1902 - Butler Brothers Co./dome construction
• July 190-November 1905 - Butler Brothers Co./steps and terraces
• August 1901 - Purdy & Hutchinson of Chicago/marble carving, including statues
• September 1901-May 1904 - Butler Brothers Co./roofing and skylights
• October 1901-December 1905 - WI Gray Co./mechanical equipment and power generation plant
• November 1901-August 1904 - Guastavino Co. of New York/timbrel arches
• February 1902-December 1903 - Butler Brothers Co./fireproofing, metal furring, lathing, and timbrel arches
• February 1902-September 1905 - Butler Brothers Co./plastering
• March 1902-June 1906 - Flour City Ornamental Works/ornamental iron work
• March 1902 - Butler Brothers Co./interior woodwork
• October 1902-June 1905 - Butler Brothers Co./interior stone and marble work
• April 1903-June 1905 - Bazille & Partridge/interior painting and glazing
• May 1903-September 1905 - Artists' contracts and bills of sale by artist last name/ Blashfield, French, Garnsey, LaFarge, Millet, Pyle, Simmons, Volk, Zogbaum
• May 1903-November 1904 - Otis Elevator/elevators
• June 1903-February 1905 - Diebold Safe and Lock Co./fireproof vault doors
• April 1903-April 1907 - Van Dorn Iron Works/metal shelves and cases
• December 1903-February 1905 - Field Schlick & Co., Mannheimer Bros., Schuneman & Evans, Herter Bros./furniture, cabinets, furnishings, draperies, carpets
• July 1904-April 1905 - Sterling Bronze Co., Mitchell Vance Co., Winston Bros./electrical light fixtures and registers
• 1904-1905 - Dale and Bumgardner/grading of the grounds 
• October 1904 - Barber Asphalt Co./asplhalt roads and walkways
• N.D. - Art Metal Construction Co./metallic fixtures in the governor's vault
• June 1906-June 1907 - Butler Brothers Co./approaches and sidewalks