Saville & Holdsworth Limited is now named SHL Group,
since Peter Saville left and started another assessment company called Saville Consulting.
SHL has a wide range of psychometric assessments available including:
Of recent years SHL has phased out almost all their paper based assessment tools and now delivers most assessments online, some of which need to be supervised and some of which do not.
The best know SHL assessment is probably the Occupational Personality Questionnaire which has been updated a few times since it was first released as the Factor Model in the 1980s.
Unfortunately, SHL have consistently pushed ipsative versions of their personality tests for recruitment, which have some serious downsides and are not generally recommended by psychologists are taught about test construction - Read more about ipsative tests 
