Davis worked as a chemist at Brearley and Sons for three years. He also worked as an inspector for the Alkali Act of 1863, a very early piece of environmental legislation that required soda manufacturers to reduce the amount of gaseous hydrochloric acid released to the atmosphere from their factories. In 1872 he was engaged as manager at the Lichfield Chemical Company in Staffordshire. In this job his capacity for innovation flourished. His works included what was at the time the tallest chimney in the UK, with a height of more than .