Globally acclaimed

NDT and NDE flawed specimen manufactureR

Global influence

Since 1980, we’ve been working with organisations in the non-destructive testing (NDT) and non-destructive evaluation (NDE) industry around the world, spanning sectors such as petrochemical, defence, nuclear, aerospace, and shipbuilding.

Pioneering excellence

Pioneering industry-standard flaw manufacturing and implantation techniques, our offices in the United Kingdom and United States have manufactured thousands of flawed specimens for major performance demonstration, training, and qualification centres.

Our customer promise

Our experience, innovative approach, specialised welding, superior workmanship, and commitment to raising industry standards guarantee that you will receive the most accurate flawed specimens on the market.


Established over 40 years ago, we are the world’s longest established flaw manufacturer.


Number of standard specimens we have manufactured at our UK and USA facilities.


Weight in tonnes of the heaviest specimen in which we have implanted flaws.


Number of distributors we work with to supports clients worldwide.


Why Sonaspection

  • With over 40 years of experience in the field, we are the leading provider of flaw manufacture and implanting techniques.
  • Our team of experienced welders, engineers and technicians, are experts in their fields, ensuring we manufacture the most accurate flawed specimens on the market.
  • Each specimen is unique, containing purposely induced flaws that are accurately sized and positioned.
  • All specimens go through extensive quality control processes to ensure our flaws are of the highest quality.
  • We pride ourselves on providing excellent customer service from the initial contact.
  • Whatever the challenge, we work hard to find solutions to ensure we can support our clients with exactly what they need.

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