Maldon Ironworks Company Ltd was incorporated with limited liability in March 1872 in Maldon, Essex. The company had been moved from Broad Street Green, Heybridge, Essex, by Samuel Warren in 1853. New premises were erected in Fullbridge, Maldon in 1875. The company was bought out in 1947 by John Sadd and Sons Ltd, timber merchants (incorporated in 1889) who were themselves subsequently acquired by Boulton and Paul Ltd, engineers, of Norwich, Norfolk (established 1797).
Maldon Ironworks continued to operate as the agricultural engineering factory of John Sadd until 1955 when the factory was converted into a TV/Radio cabinet factory managed by Maldon Woodwork Ltd, and continued as such until December 1981 when the premises were closed and put up for sale.