ARB Registered & RIBA Chartered Practice.
ARB (Architects Registration Board) is a register of all UK ARCHITECTS. It is illegal to call yourself an Architect if you are not ARB Qualified.
http://architects-register.org.uk/architect/080876H
RIBA (Royal Institute of British Architects). Is an organisation to support and promote architecture in the UK. In order to become a RIBA Chartered Practice Sam Willoughby Architects have had to gain accreditation by meeting strict criteria and continually maintain our professional services and code of conduct.