Ransomes Sims & Jefferies
 Ransomes Sims and Jeffries (also Ransomes Ransomes & Sims Ransomes Head & Jefferies Ransomes Sims & Head) was a major British agricultural machinery maker producing a wide range of products including traction engines trolleybuses ploughs lawn mowers combine harvesters and other tilling equipment. They also manufactured aeroplanes during the First World War. Their railway equipment business was continued by Ransomes & Rapier after 1869.