Countax UK, off the A329 at Great Haseley (nearer to Great Milton), manufactures Britain's best-selling garden tractors, and distributes ECHO (Japanese) power tools; to the south off the B480, Martin-Baker test ejector seats at Martin Baker Aerospace Chalgrove. Castrol Technology Centre is towards the Thames. South of RAF Benson off the A4074 at Howbery Park, Crowmarsh is HR Wallingford (former Hydraulics Research Station) and further south along the Thames is CAB International (agricultural research).