Plant Integrity Ltd (Pi) is a high-tech manufacturing and technical services company that provides advanced NDT inspection equipment, consultancy, customised software and engineering services that support modern industrial plants and structures. Its flagship product Teletest FOCUS+ R is the first commercially available system to utilise long-range guided wave ultrasonic testing for detecting corrosion in pipelines at inaccessible areas e.g. insulated and sleeved pipework, road crossings, elevated on pipe racks etc. Pi strives for excellence in all aspects of business, developing and bringing new technologies, tools, services and products to a global market in the fields of plant inspection, NDT and integrity management. Founded in 1997, and wholly owned by TWI Ltd, Pi has been at the forefront of Guided Wave inspection and monitoring research and is considered a market leader in providing support to its clients with equipment, training and mentoring. Pi can claim numerous innovations to improve performance of their in-house ultrasonic equipment. In particular, the ability to focus ultrasound at specific positions in a pipe, marinisation of transducer arrays for under water inspections, permanently mounted equipment, multi-mode excitation, wireless communication, automated frequency selection for optimal ultrasonic performance, etc. Pi works with government agencies, local authorities, government-regulated industries and the private sector to provide safe and reliable pipelines, offshore oil platforms, onshore oil fields, railways, wind turbines, tidal turbines, and civil infrastructure, such as safe bridges, roads, airports, tanks and other metal structures as well as a number of nuclear power utilities. The company is well positioned to offer a degree of expertise and product knowledge to diverse industries requiring NDT inspection for risk based assessments (RBA), fitness-for-service assessment (FFS), structural health monitoring (SHM) and bespoke solutions for condition monitoring. Pi’s services are truly global with 180 customers in 40 countries. Its annual turnover has increased to ￡5M and its staff complement to 30 by offering a combination of guided wave and other specialist services.