Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 146,884 pages of information and 232,615 images on early companies, their products and the people who designed and built them.
1936 Thomas Graham and Son was founded in Glasgow as a builders’ merchant.
1994 The group was floated by BTR
By 2018 was known as Graham The Plumbers’ Merchant supplying the trade and public with plumbing, heating, bathroom and renewable energy equipment, together with a commercial project team for larger projects.