Welcome to NDSM Limited...

NDSM Limited is an independent field trials company based in North Yorkshire.

Established in 1990, NDSM is owned and operated by Nigel Metcalfe (former ADAS plant pathology dept.). NDSM specialise in all arable and root crop related field trials across England & Scotland.

Our staff have a wide ranging and high level of expertise. These skills and knowledge, along with data handling packages compatible with most manufacturers' own software, allow us to provide an extremely professional and competent service, whatever your requirements.

NDSM was the first UK testing organisation to be accredited by the Pesticides Safety Directorate (PSD) with Official Recognition for conducting efficacy trials. PSD is an executive agency of Defra whose aim is to ensure that pesticides in the UK are safe for users, consumers and the environment.

NDSM's clients include global manufacturers, distributors and UK based organisations.