Apart from the obvious error & that is a bizarre one to make, the company is actuallu fully accredited with UKAS (number 8239) Pity that they did not check their website for mistakes before launching it.
Their prices do not seem excessive but their overall capabilty may not meet the expectations of the more committed user (read Volt or Time nuts). That said I have no affiliation with the company & will continue to use Keysight for my DMM calibration. Frequency? That I use a GPSDO for as I am only using my calibration equipment for personal use.
For the benefit of the many international users of this site, UKAS is the United kingdom Accreditation Service.
FWIW
Phil