|Kerr Stuart (Stoke on Trent)
This famous Staffordshire company made many locos on behalf of Robert Hudson. All of the diesel locos made used McLaren engines from Leeds. Upon the company having financial difficulties the designs and name were taken over by Hunslet Engine Co. The last steam engine built for industry (Trangkil) was a KS design built by Hunslet in 1971.
Note - there might be a few builders in this list that are not in Leeds as they built Leeds designed locos as sub contractors.