Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 148,550 pages of information and 233,968 images on early companies, their products and the people who designed and built them.
CMC of Portland House, Tothill Street, SW1; of 192 Ashley Gardens, Victoria, S.W.I. (1949); of The Club House, Coombe Hill, Kingston-on-Thames. (1949).
1920 Formation of a joint marketing company involving Associated Portland Cement Manufacturers with British Portland Cement Manufacturers, Martin Earle and Co and Wouldham Cement Co, which would be called the Cement Marketing Company Ltd
1939 See Aircraft Industry Suppliers.