Find cyber security auditors by expertise and region

Filter ISO27001, PCI DSS and Swift auditors. Shortlist firms that match your compliance scope.

Preferred only
Clear
All

Auditors

104 results

Fortytwo Security BV

EU
Preferred Swift CSP PCI DSS PCI 3DS

Supporting customers in the Benelux and greater Europe region. Focused on security and risk instead of checkbox assessments.

0Tolerance

North America
PCI DSS

Canadian/US QSA for PCI

1 CYBER VALLEY LIMITED

Europe
PCI DSS

PCI DSS Qualified Security Assessor (QSA) certified by PCI SSC for compliance assessments, operating in Europe (and globally)

1 SEQUENCE CYBER LIMITED

Europe
PCI DSS SWIFT CSP

PCI DSS Qualified Security Assessor (QSA) certified by PCI SSC for compliance assessments, operating in Europe (and USA)

1stSecureIT LLC (dba GM SECTEC)

Europe
PCI DSS

PCI DSS Qualified Security Assessor (QSA) certified by PCI SSC for compliance assessments, operating in Europe (and globally)

2-sec Ltd.

Europe
PCI DSS

PCI DSS Qualified Security Assessor (QSA) certified by PCI SSC for compliance assessments, operating in Europe

247 CyberLabs Limited

Europe
PCI DSS

PCI DSS Qualified Security Assessor (QSA) certified by PCI SSC for compliance assessments, operating in Europe (and CEMEA)

360 Advanced Inc.

North America
PCI DSS

US compliance and PCI QSA

360 Advanced, Inc.

Europe
PCI DSS

PCI DSS Qualified Security Assessor (QSA) certified by PCI SSC for compliance assessments, operating in Europe (and globally)

366 Security and Compliance SRL

Europe
PCI DSS

PCI DSS Qualified Security Assessor (QSA) certified by PCI SSC for compliance assessments, operating in Europe

3B Data Security Ltd.

Europe
PCI DSS

PCI DSS Qualified Security Assessor (QSA) certified by PCI SSC for compliance assessments, operating in Europe

7Security GmbH

Europe
PCI DSS

PCI DSS Qualified Security Assessor (QSA) certified by PCI SSC for compliance assessments, operating in Europe (and CEMEA)

7Security GmbH

Europe
PCI DSS

Austrian QSA with CEMEA/Europe focus

A-LIGN Compliance and Security

North America
PCI DSS

US firm specializing in PCI and compliance

A-LIGN Compliance and Security, Inc., dba A-LIGN

Europe
PCI DSS

PCI DSS Qualified Security Assessor (QSA) certified by PCI SSC for compliance assessments, operating in Europe (and globally)

Accenture

Europe
PCI DSS ISO 27001

Global consulting with European PCI focus

Accenture North America

North America
PCI DSS ISO 27001

Global with strong US PCI

AccuraCast Limited

Europe
PCI DSS

PCI DSS providing compliance assessments and security consulting, with operations in Europe

Acme Audit Partners

EU
ISO27001 PCI DSS

ISO 27001 and PCI DSS readiness and certification support across SMB and enterprise.

Advantio

Europe
PCI DSS

European-based PCI DSS Qualified Security Assessor offering audits and advisory services

Advantio S.L.

Europe
PCI DSS

Spanish-based European QSA for PCI audits

APAC ISO27001 Group

APAC
ISO27001

ISO 27001 implementation reviews and internal audit services with multilingual delivery.

AT&T Cybersecurity

North America
PCI DSS

US telecom PCI QSA

Atos (now Eviden)

Europe
PCI DSS ISO 27001

Major European player offering QSA services for PCI DSS compliance

Baker Tilly

Europe
PCI DSS

Professional services PCI QSA

Barrier Networks

Europe
PCI DSS

UK-focused QSA specializing in PCI DSS validations for European clients

Barrier Networks Ltd

Europe
PCI DSS

UK QSA for PCI DSS validations

BDO

Europe
PCI DSS ISO 27001

Advisory firm with European PCI

Bureau Veritas

Europe
PCI DSS ISO 27001

Global assurance with European PCI

Capgemini

Europe
PCI DSS

European IT services with QSA capabilities

Coalfire Systems

Europe; North America
PCI DSS SWIFT CSP ISO 27001

Leading global QSA with dedicated European operations and expertise in PCI DSS

Compliance Control Ltd

Europe
PCI DSS

One of Europe's leading cybersecurity firms performing numerous PCI DSS audits annually

Context Information Security

Europe
PCI DSS

UK/Europe PCI QSA

ControlCase

Europe
PCI DSS

Global QSA with strong European presence for PCI compliance assessments

ControlCase Europe

Europe
PCI DSS

Global QSA with dedicated European team

ControlCase LLC

North America
PCI DSS

Global but strong North American presence

Deloitte (via regional practices)

Europe
PCI DSS SWIFT CSP ISO 27001

Global firm with European QSA teams for PCI assessments

Deloitte Europe

Europe
PCI DSS SWIFT CSP ISO 27001

Big Four with European QSA practices

Deloitte US

North America
PCI DSS SWIFT CSP ISO 27001

Big Four US PCI practices

DNV

Europe
PCI DSS ISO 27001

Assurance and risk management QSA

ERMProtect

Europe
PCI DSS

QSA with European operations for PCI DSS validations and risk management

ERMProtect

Europe
PCI DSS

Risk management QSA with European ops

Eviden (Atos)

Europe
PCI DSS ISO 27001

Major European tech firm offering QSA services

EY (Ernst & Young)

Europe
PCI DSS ISO 27001

Big Four offering PCI QSA in Europe

EY US

North America
PCI DSS ISO 27001

Big Four US QSA services

FireEye (Trellix)

Europe
PCI DSS

Threat intel PCI support

Grant Thornton

Europe
PCI DSS

Professional services PCI QSA

GuidePoint Security

North America
PCI DSS

US cybersecurity PCI services

HackerOne

Europe
PCI DSS

Bug bounty with PCI advisory

IBM Security

North America
PCI DSS

Global US-based PCI support

Intertek

Europe
PCI DSS

Testing and certification with PCI

it.sec GmbH

Europe
PCI DSS

German QSA specializing in PCI compliance for European markets

it.sec GmbH

Europe
PCI DSS

German specialist in European PCI compliance

KPMG (via regional practices)

Europe
PCI DSS SWIFT CSP ISO 27001

Big Four firm providing PCI QSA services across Europe

KPMG Europe

Europe
PCI DSS SWIFT CSP ISO 27001

Big Four PCI and ISO services in Europe

KPMG US

North America
PCI DSS SWIFT CSP ISO 27001

Big Four North American PCI

LRQA

Europe
PCI DSS ISO 27001

Global assurance provider with European PCI/ISO

LRQA (Lloyd's Register Quality Assurance)

Europe
PCI DSS ISO 27001

Globally recognized QSA authorized for PCI DSS audits worldwide, including Europe

Mazars

Europe
PCI DSS ISO 27001

International audit firm PCI

MegaplanIT Holdings LLC

Europe
PCI DSS

QSA with European operations for PCI assessments

ModoSecurity Inc.

North America
PCI DSS

Canadian-focused PCI QSA

MWR InfoSecurity (F-Secure)

Europe
PCI DSS

Cybersecurity firm with PCI

Northstar Security Audits

North America
PCI DSS ISO27001

Payment security and ISO-aligned audit programs with pragmatic remediation roadmaps.

Orange Cyberdefense

Europe
PCI DSS

European cybersecurity leader providing PCI QSA and ASV services

Orange Cyberdefense

Europe
PCI DSS

European leader in cybersecurity and PCI QSA

Panacea Infosec

Europe
PCI DSS

Compliance-focused QSA serving European clients

Payment Software Company (PSC)

North America
PCI DSS

US PCI specialist

Pen Test Partners

Europe
PCI DSS

UK penetration and PCI services

Protiviti

North America
PCI DSS

US risk and compliance QSA

PwC (via regional practices)

Europe
PCI DSS SWIFT CSP ISO 27001

Global advisory with European QSA expertise in PCI compliance

PwC Europe

Europe
PCI DSS SWIFT CSP ISO 27001

Global advisory with European PCI expertise

PwC US

North America
PCI DSS SWIFT CSP ISO 27001

Big Four PCI expertise

Qualys

Europe
PCI DSS

Cloud security PCI scanning/QSA

RSM

Europe
PCI DSS ISO 27001

Audit and advisory in Europe

SecureWorks

Europe
PCI DSS

Sophos-integrated QSA across Europe

SecureWorks (Sophos)

Europe
PCI DSS

PCI QSA services integrated with broader cybersecurity, operating across Europe

SecureWorks (Sophos)

North America
PCI DSS

US cybersecurity with PCI QSA

Securitum

Europe
PCI DSS ISO 27001

Polish-based QSA focused on European PCI DSS assessments and penetration testing

Securitum S.A.

Europe
PCI DSS ISO 27001

Polish QSA with penetration testing and ISO services

SecurityMetrics Inc.

North America
PCI DSS

US-based PCI compliance leader

SGS

Europe
PCI DSS ISO 27001

Certification body offering PCI/ISO

SISA Information Security

Europe
PCI DSS ISO 27001

Global QSA with strong European presence for PCI and ISO compliance

Six Degrees

Europe
PCI DSS

UK managed services PCI QSA

SRC Security Research & Consulting GmbH

Europe
PCI DSS ISO 27001

German QSA specializing in PCI DSS and related standards in Europe

Swift Assure Consulting

EU
Swift

SWIFT CSP assessments and advisory services for financial institutions.

Trustwave (LevelBlue)

Europe
PCI DSS

Global QSA (formerly Trustwave) with strong European support for PCI audits

Trustwave (LevelBlue)

Europe
PCI DSS

Global with strong European PCI support

Trustwave (LevelBlue)

North America
PCI DSS

Major US QSA for PCI audits

TÜV Informationstechnik GmbH (TÜViT)

Europe
PCI DSS ISO 27001

German QSA providing PCI DSS compliance validations in Europe

TÜV Rheinland

Europe
PCI DSS ISO 27001

German certification and PCI QSA

TÜViT GmbH

Europe
PCI DSS ISO 27001

German certification body and QSA for PCI/ISO

usd AG

Europe
PCI DSS SWIFT CSP

German-based QSA with full PCI SSC licensing for DSS assessments in Europe

usd HeroLab

Europe
PCI DSS SWIFT CSP

Leading German QSA for PCI and SWIFT

VikingCloud

Europe
PCI DSS

QSA with extensive European coverage, 100+ QSAs, and compliance platform

VikingCloud (now part of Mastercard)

Europe
PCI DSS

Extensive European coverage for PCI