
Tom Johnston
Director, Insite Technical Services
Tom Johnston is a chartered chemical engineer with over 22 years’ experience. Initially working for Stone and Webster on steam cracker projects, he moved to Milford Haven Refinery, working as process operations support on the crude/vacuum distillation units, diesel hydrotreater and naphtha reformer units. Tom held several process supervision and operations support roles before becoming operations manager.
Since the closure of Milford Haven refinery in 2014, Tom set up InSite Technical Services, who have grown from 6 to over 80 staff, providing technical consultancy and engineering design services to the downstream sector, and in the energy transition. This includes projects on carbon capture, renewables hydrotreating, district heating, and conversion of refinery and storage assets.