Johnson & Allen LTD

established over 80 years ago johnson & allen ltd is an expanding company in the magnetic particle and dye penetrant inspection industry. with a wealth of experience johnson & allen are a market leader in both the design and manufacture of standard and bespoke ndt solutions. all our bespoke systems are designed and built in-house within the 'steel city' of sheffield, uk. world class engineering johnson & allen continue to export globally and supply a wide range of industries including aerospace, automotive, rail, oil and gas, military and general engineering. we are a well-established company with a proven track record - previous satisfied customers including companies such forgemasters, tata steel, rolls royce, vector aerospace, gulf air and bae systems. johnson & allen is a bsi iso 9001: 2015 and safecontactor certified company and are associate members of the british institute of non-destructive testing (bindt) and the nuclear advanced manufacturing research centre (namrc). a prof