Detroit River Bridge Company ended in 1905.
Hudson River Bridge Company at Albany ended in 1976.
Detroit Automobile Company ended in 1901.
Keithsburg Bridge Company ended in 1901.
Railroad Bridge Company ended in 1866.
Quincy Bridge Company ended in 1866.
Sibley Bridge Company ended in 1900.
Detroit Auto Vehicle Company ended in 1907.
Michigan Central Bridge Company ended in 1898.
Pee Dee Bridge Company ended in 1915.
Mercer County Bridge Company ended in 1885.
Quincy Railroad Bridge Company ended in 1903.
Detroit Copper Mining Company of Arizona ended in 1917.