Storm Aviation has been given UKAS (United Kingdom Accreditation Service) approval for its calibration laboratory in London Stansted.
The FL Technics business said the go-ahead means it is "now authorised to perform accredited calibrations in accordance with its scope of work".
UKAS is a national accreditation body that assesses against nationally and internationally agreed standards and organisations that provide conformity assessment for calibration services among other activities, Storm said in a statement.
"Being UKAS accredited gives our customers the added confidence that their tools and equipment are being calibrated to the highest level, whilst meeting UK and international standards," the company said.