Hedingham Omnibuses is an Essex bus company founded by Aubrey Ernest Letch shortly after serving in World War I, with his parents' help and trading under his own name. It started as a coach hire company, but gradually expanded as Letch started running bus services to Braintree and Sudbury on their market days of Wednesday and Thursday respectively. He then bought a competing business from P W Finch of Castle Hedingham in March 1935. This allowed Letch to take over the Monday to Saturday workers' service to Braintree. In the last 1950s, he further expanded the business with routes to Gestingthorpe, Pebmarsh and Halstead.