In 1986 the first combine was converted by Coleman Engineering for trials plot harvesting. The design & engineering was carried out by Colin Coleman & Frank Knock. This was the start of a new business for Coleman Engineering and from this company Trials Equipment was later formed.

In 1989 Sampo, having heard about the conversions, approached Coleman Engineering to offer them the franchise for their combines in the UK. This was agreed. Wintersteiger was added in 1991 to give nearly a full range of trials machines.

In the late 1990's, Wintersteiger bought the German company Hege and chose Coleman Engineering as their sole importer. In 2001 Trials Equipment was formed from Coleman Engineering to concentrate on the trials machinery and design business and keeping the existing, experienced staff the company has continued to grow.

September 2004 saw the company move to its current site at Wethersfield, Braintree, where the expansion continues. The main building has had the spare parts storage area increased, to store the ever increasing amount of spare parts we hold. We have now completed works to extend the office area due to staff numbers increasing.