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Southgate Engineering Co of New Southgate, London.
1888 Combined Traction Engine, Crane and Excavator. 
1888 Issued catalogue of steam pile-drivers, sawing-off apparatus, excavators and centrifugal pumps.
1894 65-ton Overhead Travelling Crane.
Active during the 1880-90 period, and reported as having established new works about 1895. The Works yard was flanked by the G.N.R. line at New Southgate and appeared to be of fair size. Products of earlier years comprised lathes, pumps, pile-drivers and hydraulic machinery, in addition to cranes.
The latter were little known in this country but, in 1896, four accident cranes of 10 tons capacity were supplied to Indian Railways. These were of the usual pillar type of the period and had inclined cylinders, mounted outside the frames. Carriages were of the three-axle type, all axles being coupled by chains for maximum adhesion.
A few cranes for this builder were also turned out by Messrs. Jessop of Leicester under sub-contract.
1897 Lathe for machining projectiles 
The extent or duration of manufacture at New Southgate is doubtful; by 1910, the Firm, described as Engineers and Iron founders, was operating from Gracechurch Street, London , E.C., and, by 1915, had evidently disappeared.