Addison Motor Company
| Company type | Private |
|---|---|
| Industry | Automotive |
| Founded | 1903 |
| Founder | James Harold Atherton |
| Defunct | 1918 |
| Headquarters | Liverpool , England |
Key people | James Harold Atherton (sole owner and factory manager, 1903–1918) |
| Products | Cars, motorcycles |
The Addison Motor Company was an English car manufacturer located in Liverpool. From 1903 until 1918, James Harold Atherton held the roles of sole owner and factory manager.
The firm developed a two-cylinder power unit with variable-lift inlet valves, which they promoted as "the Mercedes of the tri-car world". Additionally, Addison produced motorcycles during the years 1904 and 1905.
At the ninth Liverpool Motor Show, their touring car and tri-car models were well received. The Addison tri-car won a silver medal in a 1905 hill climb organized by the University of Liverpool Motor Club.
By January 1912, Addison's achievements enabled them to open a specialized showroom at 7 Berry Street, Liverpool, showcasing Alldays and Phoenix vehicles. The company also sold Speedwell automobiles. Around 1922, Addison moved to a larger garage to accommodate its expanding business operations.