List of Defunct Automobile Manufacturers of The United States - I

I

• Ideal (1902)
• Ideal (1902–1903)
• Ideal (1907–1908)
• Ideal Electric (1910-1911)
• Illinois (1907)
• Illinois (1909–1912)
• Illinois Electric (1897–1901)
• Imp (1913–1914)
• Imperial (1903–1904)
• Imperial (1907–1908)
• Imperial (1908–1916)
• Imperial (1908–1916)
• Imperial (1955–1975, 1981–1983)
• Imperial Electric (1903–1904)
• Independent Harvester (1910–1911)
• Indiana (1901)
• Indianapolis (see Black)
• International (1899) (see Strathmore)
• International (1899) (see Walters)
• International (1900) (see Klock)
• International (1900)
• International (1901–1903) (see Toledo)
• International Cyclecar (1914) (see Economycar)
• International Harvester (1907–1975)
• Inter-State (1909–1919)
• Intrepid (see Rotary)
• Iroquois (1903–1907)