CESG is a division within GCHQ, often referred to as the “third intelligence service”. CESG is the National Technical Authority for Information Assurance within Government.
Recognising that there was an increasing demand for authoritative information assurance advice for Government departments and agencies the CESG Listed Advisor Scheme (CLAS) was created by approving a pool of high quality consultants.
All CLAS Consultants hold a formal HMG Security Clearance (a minimum of SC) and are authorised to provide information assurance advice on systems processing information up to and including UK SECRET.
The delivery of CLAS consultancy is specifically tailored to the UK Government departments, executive agencies, related contractors and the wider public sector such as:-
- Central and devolved Government.
- Local authorities.
- Organisations forming part of the Critical National Infrastructure.
- Non-Government organisations.
- GSI and CJX connected organisations.
- Those handling Government Protectively Marked assets such as Police and Health services and some private sector organisations.
Obtaining authorisation to the GSx was an essential element of English Partnerships transition to the new Homes and Communities Agency. Initial research identified a number of consultants with GSi experience, but Sapphire was the only organisation I could find who had previous experience with GSx... our CLAS consultant, took us painlessly through the process, prepared our RMADS, and readily provided practical support as we worked through the gaps in required controls. With Sapphire’s help, we achieved our authorisation ahead of our target date.
Pat Watson, Information Security Officer, Homes and Communities Agency