James Costain

Part of Previan Technologies, Inc., Eddyfi Holding UK Ltd. is a holding company with an interest in developing and manufacturing non-destructive testing equipment for storage tanks. Eddyfi Holding UK Ltd. is based in Swansea, UK. Eddyfi Holding was founded in 2016.

Technical Software Consultants Ltd. designs, manufactures and supplies advanced instruments for non-destructive testing (NDT) of metallic structures. Its products are used to solve a range of inspection needs including defect detection, crack sizing, structural monitoring, load measurement, and stress mapping. The firm's technologies include Alternating Current Field Measurement (ACFM), an electromagnetic technique for detecting and sizing surface breaking defects in metals; Alternating Current Potential Difference (ACPD), a technique used primarily for accurate depth sizing and monitoring of surface breaking defects in metals; and Alternating Current Stress Measurement (ACSM), an electromagnetic, non-contacting stress measurement technology that can measure dynamic and residual stresses. The company was founded in 1984 and is headquartered in Wolverton Mill, the United Kingdom.