23 Verified firms with an office in London, England · Verified first · All auditors
These firms have a published office in London, England. A firm may also have offices elsewhere. Listings are checked facts, not endorsements or rankings.
HQ: United KingdomVerified
Cybersecurity consultancy offering PCI DSS QSA assessments, PCI PIN advisory and managed security services (London address from its contact page); listed by the PCI SSC as a Qualified Security Assessor company.
HQ: United KingdomVerified
London-based cybersecurity consultancy (2-sec Limited) offering penetration testing and PCI DSS services; listed as a PCI QSA.
HQ: United KingdomVerified
London-based certification body (Atlas Certification Limited); UKAS-accredited for ISO/IEC 27001 certification.
HQ: United KingdomVerified
UK cybersecurity services firm with offices in Reading, London, Cardiff, Manchester and Edinburgh; listed as a PCI QSA.
Reading, England · London, England · Cardiff, Wales · +4 more
HQ: United KingdomVerified
UK telecommunications and IT services company (London address from business.bt.com); listed by the PCI SSC as a Qualified Security Assessor company.
HQ: United KingdomVerified
UK branch of the Bureau Veritas certification business (London); UKAS-accredited for ISO/IEC 27001, ISO/IEC 27701 and ISO 22301 certification.
HQ: United KingdomVerified
UK business of the Capgemini consulting and technology services group (London office from its UK contact page); Capgemini UK Plc is listed by the PCI SSC as a Qualified Security Assessor company.
HQ: United KingdomVerified
Certification and training body established in London in 2015; UKAS-accredited for ISO/IEC 27001 certification.
HQ: United KingdomVerified
Managed IT and cybersecurity services provider with UK offices in London, Leeds, Gloucester and Warrington; listed as a PCI QSA.
London, England · Leeds, England · Gloucester, England · +2 more
HQ: United KingdomVerified
London-based cybersecurity and compliance consultancy (Cortida Limited, registered office Buckhurst Hill, Essex); listed as a PCI QSA.
HQ: United KingdomVerified
Cybersecurity services firm with offices in London and Gloucester (per its site); listed as a PCI QSA.
HQ: AustraliaVerified
Melbourne-headquartered cybersecurity services firm with offices across Australia, New Zealand and London; listed as a PCI SSC Qualified Security Assessor company.
Melbourne, Victoria · Sydney, New South Wales · Brisbane, Queensland · +8 more
HQ: United KingdomVerified
UK certification entity of DNV (DNV Business Assurance UK Limited, London); UKAS-accredited for ISO/IEC 27001, ISO/IEC 27701 and ISO 22301 certification.
HQ: United KingdomVerified
Testing and certification organisation focused on online gambling products (London address from the UKAS schedule); UKAS-accredited for ISO/IEC 27001 certification.
HQ: United KingdomVerified
Technology services and software engineering company (London office from its contact page); its UK entity is listed by the PCI SSC as a Qualified Security Assessor company.
HQ: United StatesVerified
Compliance audit firm based in Dresher, Pennsylvania with a London office; listed as an ANAB-accredited ISO 27001 certification body, HITRUST External Assessor and CMMC C3PAO.
HQ: IrelandVerified
Dublin-headquartered cybersecurity services firm listed as a PCI Qualified Security Assessor (QSA) company, with a London office.
HQ: United KingdomVerified
UK arm of Orange Cyberdefense (Orange group) with offices in London, Maidstone and Manchester (per its site); listed as a PCI QSA.
HQ: United KingdomVerified
Digital risk and cybersecurity firm with offices in London and Bristol (per its site); listed as a PCI QSA.
HQ: United KingdomVerified
UK member firm of the PwC network with a London office at Embankment Place; listed by the PCI Security Standards Council as a Qualified Security Assessor company.
HQ: United KingdomVerified
London-based certification body; UKAS-accredited for ISO/IEC 27001 certification.
HQ: United KingdomVerified
London-based cybersecurity consultancy offering penetration testing and PCI DSS assessment; listed by the PCI SSC as a Qualified Security Assessor company.
HQ: United KingdomVerified
London-based consultancy (consulting arm of Brookcourt Solutions Limited per its site); listed as a PCI QSA.
Related locations: England, United Kingdom · United Kingdom · Manchester, England · Leeds, England · Reading, England · Warrington, England
23 Verified firms have a published office in London, England. Pages exist only where at least 3 Verified firms match. This is not a ranking.
Firms on this page appear because an official registry listed them for at least one published framework (ISO 27001, PCI DSS). Each firm page names the registry row and the date checked.
London (23), Gloucester (2), Manchester (2), Bristol (1), Buckhurst Hill (1), Cardiff (1).
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