Hardman & Holden Limited was a British chemical company based in Manchester. They began as coal tar distillers, before diversifying into other chemicals. The company was formed in 1892 by Josiah Hardman, a tar distiller from Milton, Staffordshire, and John James Holden of Higher Broughton, Salford to acquire the assets of the bankrupt chemical company Bouck & Co. Along with a third partner, George Henry Holden the company of Hardman & Holden was established in Clayton, Manchester. The company later moved to Valley Road, strategically located near to two local gas works that supplied raw materials via pipelines.