Enderby notes
“The wharf was first developed by the whaling company of Samuel Enderby & Sons, which acquired the site for a ropeworks in 1830. Enderbys also built Enderby House, which remains today as a listed building[3] and part of the Alcatel works on the site.
In 1857 submarine cable manufacturers Glass, Elliot & Co and W.T.Henley took over the site; Henleys subsequently moved to North Woolwich.[4] As well as jointly making the short-lived first transatlantic telegraph cable, Glass, Elliot supplied many early telegraph cables…”
source: Wikipedia