Three years later he started a mill for machine spinning of flax and hemp, along with his compatriot William Gibson.
In 1841 Keiller opened a heavy engineering plant in Gothenburg, as a private company.
In 1867 Keiller floated Göteborgs Mekaniska Verkstad on the stock exchange, and a year later he retired completely from the workshops.
He was the father of James Keiller who in 1906 donated the area around Ramberget to Gothenburg city which here had built Keillers park.
This Scottish business-related biographical article is a stub.