Auditor Directory
Top Compliance Auditors in France
About France Auditors
31 compliance audit firms with offices or operations in France. The list below covers the major frameworks assessed locally, the dominant firm sizes, and where the firms are concentrated. Use the filters to narrow by framework, firm size, or budget.
Frameworks most audited in France
Firm size mix
- Big 4
- 6
- Large (500+ staff)
- 20
- Mid-size (51–500)
- 3
- Boutique (≤50)
- 2
Top cities
- Paris
- 17
- London
- 7
- Lille
- 1
- Saint Denis
- 1
- Brussels
- 1
How to choose a France auditor
- Scope match: confirm the firm has signed off audits for the framework you need in the last 12 months.
- Local presence: on-site evidence collection and interviews are faster when the auditor has staff in your city.
- Three quotes: for identical scopes, pricing can vary two to three times across the firms listed here.
- References: ask for one reference customer in your industry and company stage.
Top Compliance Auditors in France is one of many regions in the global auditor directory. To find auditors by framework, see the framework-based directory.
31 firms — interactive filtering loads below.
Atos Cybersecurity
Paris, France
Atos Cybersecurity is a global IT services company offering enterprise-grade ISO 27001, SOC 2, and NIS2 compliance.
BDO International
Brussels, Belgium
BDO is the fifth-largest professional services network globally, providing audit, tax, and advisory services through member firms in over 160 countries.
Bureau Veritas
Paris, France
Bureau Veritas is a world-leading testing, inspection, and certification company providing ISO 27001 and management system certifications in 140+ countries.
CGI Cybersecurity
Paris, France
CGI Cybersecurity offers enterprise-grade compliance services across ISO 27001, SOC 2, NIS2, and more.
Deloitte
London, United Kingdom
Deloitte is the world's largest professional services firm, offering audit, assurance, tax, and advisory services across 150+ countries worldwide.
Ernst & Young (EY)
London, United Kingdom
EY is a Big Four professional services firm providing audit, assurance, tax, consulting, and strategy services across more than 150 countries worldwide.
EY France
Paris, France
EY France is a Big Four professional services firm providing ISO 27001, GDPR, HDS, SOC 2, and enterprise risk advisory services to French enterprises across financial services, technology, and manufacturing.
Grant Thornton
London, United Kingdom
Grant Thornton is a leading global professional services network providing audit, tax, and advisory services through member firms in over 140 countries.
KPMG
Amstelveen, Netherlands
KPMG is a Big Four professional services firm providing audit, tax, and advisory services through a global network spanning 143 countries and territories.
Mazars
Paris, France
Mazars is an international audit, tax, and advisory firm operating as an integrated partnership across 95+ countries with 47,000+ professionals.
PricewaterhouseCoopers (PwC)
London, United Kingdom
PwC is one of the Big Four professional services firms, providing audit, assurance, tax, and consulting services to major organizations in 152 countries.
PwC France
Paris, France
PwC France is a Big Four professional services firm providing ISO 27001, GDPR, HDS, SOC 2, and enterprise risk advisory services to French enterprises across financial services, technology, healthcare, and government.
RSM International
London, United Kingdom
RSM International is the sixth-largest global professional services network, delivering audit, tax, and consulting services across 120+ countries.
SGS
Geneva, Switzerland
SGS is the world's largest testing, inspection, and certification company, providing ISO 27001 and management system certifications across 140+ countries.
Sogeti Cybersecurity
Paris, France
Sogeti Cybersecurity is a Capgemini subsidiary offering enterprise-grade compliance services across Europe.
Wavestone
Paris, France
Wavestone is a French management and technology consultancy offering ISO 27001, NIS2, and GDPR compliance.
Advens
Lille, France
Advens is a French cybersecurity firm offering ISO 27001, HDS, and NIS2 compliance assessments.
AFNOR Certification
Saint-Denis, France
AFNOR Certification is France's national standards body and a COFRAC-accredited ISO certification body offering ISO 27001, ISO 27701, and HDS audits.
BDO France
Paris, France
BDO France offers SOC, ISO 27001, and GDPR compliance audit services.
Claranet Cyber Security
London, United Kingdom
Claranet Cyber Security offers ISO 27001, PCI DSS, and Cyber Essentials assessments across Europe.
COFRAC Accredited Certification Bodies
Paris, France
COFRAC is France's national accreditation body, accrediting ISO certification bodies to deliver ISO 27001, ISO 27701, HDS, and management system certifications.
DataProtect
Casablanca, Morocco
DataProtect is a Morocco-based cybersecurity firm offering ISO 27001, SOC 2, and PCI DSS assessments in North Africa.
DEKRA
Stuttgart, Germany
DEKRA is one of the world's largest testing, inspection, and certification organizations offering ISO 27001, ISO 27701, and management system certifications globally.
Eurofins Assurance
Paris, France
Eurofins Assurance is the certification division of the Eurofins Group, offering ISO 27001 and management system audits across Europe with multi-country accreditation.
Mazars France
Paris, France
Mazars France is the home practice of the Forvis Mazars network, providing ISO 27001, GDPR, HDS, and SOC 2 compliance services to French mid-market companies and enterprises at competitive pricing.
Moore Global
London, United Kingdom
Moore Global is a top-15 international accounting and advisory network with 34,000+ professionals serving clients across 110+ countries worldwide.
Orange Cyberdefense
Paris, France
Orange Cyberdefense is a major European cybersecurity firm offering ISO 27001, NIS2, SOC 2, and GDPR compliance services with managed security operations across the continent.
RSM France
Paris, France
RSM France provides SOC, ISO 27001, and GDPR compliance audit services.
SOCOTEC
Paris, France
SOCOTEC is a major French certification body offering ISO 27001 and multi-standard certifications across Europe. Profile includes pricing and framework coverage.
SysDream
Paris, France
SysDream is a French cybersecurity firm offering ISO 27001, HDS, and NIS2 compliance assessments.
Systancia
Paris, France
Systancia is a French cybersecurity firm offering ISO 27001, HDS, and NIS2 compliance assessments.