Auditor Directory
SOC 1 Auditors
SOC 1 (SSAE 18) — Report on Controls at a Service Organization Relevant to User Entities' Internal Control over Financial Reporting
Browse accredited firms offering SOC 1 audits. Filter by location, size, and budget.
254 firms — interactive filtering loads below.
Baker Tilly
Chicago, Illinois
Baker Tilly is a top-10 global advisory CPA firm network with 43,000+ professionals in 141 countries, serving mid-market and growth companies.
BDO Canada
Toronto, ON
BDO Canada is a leading national CPA firm offering SOC, SOX, ISO 27001, and PIPEDA compliance audits.
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.
Citrin Cooperman
New York, NY
Citrin Cooperman is a Top 25 CPA firm offering comprehensive SOC, SOX, HIPAA, and ISO 27001 audit services.
CliftonLarsonAllen
Minneapolis, MN
CliftonLarsonAllen is a Top 10 CPA firm offering SOC, SOX, HIPAA, FedRAMP, and ISO 27001 audits.
CliftonLarsonAllen LLP
Minneapolis, MN
CliftonLarsonAllen (CLA) is a top-eight US CPA firm headquartered in Minneapolis, offering SOC 1, SOC 2, ISO 27001, HIPAA, HITRUST, and CMMC audit services nationally.
Coalfire
Westminster, Colorado
Coalfire is a leading US cybersecurity advisory and audit firm specializing in FedRAMP, SOC 2, PCI DSS, HITRUST, and CMMC for cloud and technology companies.
CohnReznick Advisory
New York, NY
CohnReznick Advisory is a Top 25 CPA firm offering SOC, SOX, and FedRAMP compliance audits.
Crowe Global
New York, United States
Crowe Global is a top-10 global accounting network providing audit, tax, and advisory services through member firms in over 145 countries worldwide.
Deloitte
London, United Kingdom
Deloitte is the world's largest professional services firm, offering audit, assurance, tax, and advisory services across 150+ countries worldwide.
Deloitte Australia
Sydney, Australia
Deloitte Australia is a Big Four professional services firm providing SOC 2, ISO 27001, IRAP, Essential Eight, and enterprise risk advisory services to Australia's largest organizations across government, financial services, and technology.
Deloitte Canada
Toronto, Canada
Deloitte Canada is the country's largest Big Four professional services firm, providing SOC 2, ISO 27001, PIPEDA, SOX, and enterprise risk advisory services across financial services, technology, energy, and government sectors.
Deloitte Haskins & Sells LLP
Mumbai, India
Deloitte Haskins & Sells is Deloitte's primary India affiliate, offering SOC 1, SOC 2, ISO 27001, DPDPA, and compliance audit services across India.
Deloitte India
Mumbai, India
Deloitte India is a Big Four professional services firm providing SOC 2, ISO 27001, DPDPA, SOX, and comprehensive risk advisory services to India's largest corporations and multinational subsidiaries.
Deloitte Middle East
Dubai, UAE
Deloitte Middle East is the region's largest professional services firm, providing Big Four audit, assurance, and advisory services across the MENA region.
Deloitte Singapore
Singapore
Deloitte Singapore is a Big Four professional services firm providing SOC 2, ISO 27001, PDPA, MTCS, and enterprise risk advisory services to major corporations and government agencies across Singapore and Southeast Asia.
Deloitte Tohmatsu
Tokyo, Japan
Deloitte Tohmatsu is Deloitte's Japanese member firm and one of Japan's largest audit firms, providing Big Four services including J-SOX and ISMAP compliance.
Deloitte Touche Tohmatsu Brazil
Sao Paulo, Brazil
Deloitte Brazil is the largest professional services firm in Latin America, offering SOC 1, SOC 2, ISO 27001, LGPD, and compliance audit services.
Eide Bailly
Fargo, ND
Eide Bailly is a Top 25 CPA firm offering SOC, SOX, HIPAA, and ISO 27001 audit services.
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.
Ernst & Young Brazil
Sao Paulo, Brazil
EY Brazil is Ernst & Young's Brazilian member firm offering SOC 1, SOC 2, ISO 27001, LGPD, and compliance audit services across Brazil.
EY Australia
Sydney, Australia
EY Australia is a Big Four professional services firm providing SOC 2, ISO 27001, IRAP, Essential Eight, and enterprise risk advisory services across financial services, technology, and government sectors in Australia.
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.
EY Germany
Stuttgart, Germany
EY Germany is a Big Four professional services firm providing ISO 27001, C5, TISAX, SOC 2, and GDPR compliance services to German enterprises, automotive companies, and financial institutions.
EY India
Mumbai, India
EY India is the largest Big Four operation in India by headcount, providing SOC 2, ISO 27001, DPDPA, SOX, and comprehensive risk advisory services across all major industries.
EY Japan
Tokyo, Japan
EY Japan (EY ShinNihon) provides Big Four audit, assurance, and advisory services with expertise in J-SOX, ISMAP, and Japanese regulatory compliance.
EY MENA
Dubai, UAE
EY MENA provides Big Four audit, assurance, tax, and advisory services across the Middle East and North Africa with offices in 15+ MENA countries.
EY Singapore
Singapore
EY Singapore provides Big Four audit, assurance, and advisory services with strong cybersecurity and regulatory compliance capabilities for the ASEAN market.
Forvis Mazars (US)
Springfield, Missouri
Forvis Mazars is a top-10 US professional services firm formed from the merger of BKD and Dixon Hughes Goodman, now part of the Mazars global network.
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.
Grant Thornton LLP
Chicago, IL
Grant Thornton US is a top-seven national CPA firm offering SOC 1, SOC 2, ISO 27001, HIPAA, HITRUST, FedRAMP, and CMMC audit services for mid-market and enterprise companies.
HCLTech Cybersecurity
Noida, India
HCLTech Cybersecurity provides enterprise compliance services across ISO 27001, SOC, PCI DSS, and NIST.
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.
KPMG Australia
Sydney, Australia
KPMG Australia provides Big Four audit, assurance, and cybersecurity services with deep expertise in APRA, CPS 234, and Australian regulatory compliance.
KPMG AZSA LLC
Tokyo, Japan
KPMG AZSA (KPMG Japan) is a Big Four audit firm providing SOC 2, ISO 27001, APPI, ISMAP, and enterprise risk advisory services to Japan's largest corporations across technology, manufacturing, and financial services.
KPMG Brazil
Sao Paulo, Brazil
KPMG Brazil is KPMG's Brazilian member firm offering SOC 1, SOC 2, ISO 27001, LGPD, and compliance audit services for enterprises and mid-market companies.
KPMG Canada
Toronto, Canada
KPMG Canada is a Big Four professional services firm providing SOC 2, ISO 27001, PIPEDA, SOX, and enterprise risk advisory services to Canadian organizations across financial services, technology, energy, and government.
KPMG China
Beijing, China
KPMG China is one of China's largest Big Four firms, providing audit, assurance, and advisory services with expertise in Chinese regulatory compliance.
KPMG India
Mumbai, India
KPMG India is a Big Four professional services firm providing SOC 2, ISO 27001, DPDPA, and enterprise risk advisory services to India's largest organizations across financial services, technology, and government sectors.
KPMG Lower Gulf
Dubai, UAE
KPMG Lower Gulf is KPMG's UAE and Oman practice, providing Big Four audit, assurance, tax, and advisory services across the Gulf region.
KPMG Singapore
Singapore
KPMG Singapore is KPMG's ASEAN hub, providing Big Four audit, assurance, tax, and advisory services with strong regulatory and compliance expertise.
Kroll
New York, New York
Kroll is a global risk and financial advisory firm providing cybersecurity, compliance, and investigation services with deep expertise in digital forensics.
LTIMindtree Cybersecurity
Mumbai, India
LTIMindtree Cybersecurity offers enterprise-grade ISO 27001, SOC 2, and PCI DSS compliance services.
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.
PricewaterhouseCoopers Brazil
Sao Paulo, Brazil
PwC Brazil is PricewaterhouseCoopers' Brazilian member firm offering SOC 1, SOC 2, ISO 27001, LGPD, and compliance audit services for Latin America's largest market.
Protiviti
Menlo Park, California
Protiviti is a global consulting firm specializing in internal audit, risk management, and compliance with 9,000+ professionals across 25+ countries.
PwC Aarata LLC
Tokyo, Japan
PwC Aarata (PwC Japan) is a Big Four audit firm providing SOC 2, ISO 27001, APPI, ISMAP, and enterprise risk advisory services to Japan's leading corporations across financial services, technology, and manufacturing.
PwC Australia
Sydney, Australia
PwC Australia is one of Australia's largest professional services firms, providing Big Four audit, assurance, and cybersecurity services across Oceania.
PwC Canada
Toronto, Canada
PwC Canada is a Big Four professional services firm providing SOC 2, ISO 27001, PIPEDA, SOX, and enterprise risk advisory services to Canada's largest organizations across financial services, technology, energy, and government.
PwC China
Shanghai, China
PwC China is the largest Big Four firm in China, providing audit, assurance, and advisory services with deep expertise in Chinese regulatory compliance.
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.
PwC Germany
Frankfurt, Germany
PwC Germany is a Big Four professional services firm providing ISO 27001, C5, TISAX, SOC 2, and GDPR compliance services to German enterprises across automotive, manufacturing, technology, and financial services.
PwC India
Mumbai, India
PwC India is a Big Four professional services firm providing SOC 2, ISO 27001, DPDPA, SOX, and enterprise risk advisory services to India's largest corporations and multinational subsidiaries.
PwC Middle East
Dubai, UAE
PwC Middle East is a Big Four professional services firm providing SOC 2, ISO 27001, NESA, PDPL, and enterprise risk advisory services across the UAE, Saudi Arabia, and the broader Middle East region.
PwC Singapore
Singapore
PwC Singapore is a Big Four professional services firm providing SOC 2, ISO 27001, PDPA, MTCS, and enterprise risk advisory services to financial institutions, technology companies, and government agencies in Singapore and the APAC region.
RSM International
London, United Kingdom
RSM International is the sixth-largest global professional services network, delivering audit, tax, and consulting services across 120+ countries.
RSM US LLP
Chicago, IL
RSM US LLP is the fifth-largest US CPA firm and a leading mid-market auditor offering SOC 1, SOC 2, ISO 27001, HIPAA, HITRUST, FedRAMP, and CMMC services nationwide.
Samil PricewaterhouseCoopers
Seoul, South Korea
Samil PwC is PricewaterhouseCoopers' South Korean member firm offering SOC 1, SOC 2, ISO 27001, ISMS-P, and compliance audit services for Korean enterprises.
Schellman & Company
Tampa, Florida
Schellman is a leading US compliance audit firm specializing in SOC 2, ISO 27001, FedRAMP, HITRUST, and PCI DSS assessments for technology companies.
TCS (Tata Consultancy Services)
Mumbai, India
TCS is India's largest IT services company offering cybersecurity, compliance audit, and risk advisory services to enterprises across 46 countries worldwide.
TCS Cybersecurity
Mumbai, India
TCS Cybersecurity provides enterprise-grade compliance services across SOC, ISO 27001, PCI DSS, and more.
Wipro Cybersecurity
Bangalore, India
Wipro Cybersecurity offers enterprise-grade compliance services across ISO 27001, SOC, and PCI DSS.
360 Advanced
Nashville, TN
360 Advanced is a US-based compliance audit firm offering SOC 2, PCI DSS, HITRUST, ISO 27001, and HIPAA audits with a focus on technology and healthcare companies.
AAFCPAs
Westborough, MA
AAFCPAs is a Massachusetts CPA firm founded in 1973 providing SOC 1, SOC 2, HIPAA, and IT audit services to service organizations.
AARC-360
Atlanta, GA
AARC-360 is a PCAOB-registered Atlanta CPA firm delivering SOC 1, SOC 2, ISO 27001, HIPAA, and PCI DSS assurance and compliance services.
ACA Group
New York, NY
ACA Group is a global GRC advisory firm whose ACA Aponix division provides cybersecurity assessments and compliance support for financial services.
Adams Brown
Wichita, KS
Adams Brown is a Wichita, KS CPA and advisory firm founded in 1945, offering SOC 1 and SOC 2 examinations plus audit, tax, and IT services.
Agio
New York, NY
Agio is a New York-based managed IT and cybersecurity firm providing SOC, ISO 27001, and SEC compliance support to financial services firms.
Al Ghaith & Co
Abu Dhabi, UAE
Al Ghaith & Co is a leading UAE audit and advisory firm offering SOC, ISO 27001, and compliance services for government entities and private sector organizations.
Alder & Co
Salt Lake City, UT
Alder & Co is a Salt Lake City-based CPA firm providing SOC 1 and SOC 2 examinations for service organizations and technology companies.
Anchin Block & Anchin LLP
New York, NY
Anchin Block & Anchin is a New York-based CPA firm offering SOC 1, SOC 2, HIPAA, and cybersecurity audit services for mid-market companies.
Aprio
Atlanta, Georgia
Aprio is a top-25 US CPA and advisory firm offering SOC 2, ISO 27001, HITRUST, and cybersecurity assessments with strong technology sector expertise.
Armanino
San Ramon, California
Armanino is a top-25 US CPA firm based in California with strong technology sector focus, offering SOC 2, ISO 27001, and cybersecurity assessments.
Aronson LLC
Rockville, MD
Aronson LLC is a Maryland CPA firm offering SOC, SOX, and FedRAMP compliance audits for government contractors.
Assurance Dimensions
Tampa, FL
Assurance Dimensions is a Tampa-based national audit and assurance CPA firm founded in 2008, providing SOC 1 and SOC 2 examinations.
AssurancePoint
Atlanta, GA
AssurancePoint is a boutique CPA firm specializing in SOC 2 audits for technology companies. Profile includes pricing, framework coverage, and engagement details.
Assure Professional
Charlotte, NC
Assure Professional, acquired by A-LIGN in 2023, is an audit provider delivering SOC 1, SOC 2, SOC 3, HIPAA, HITRUST, and ISO 27001 assessments.
Baker Tilly JFC
Dubai, UAE
Baker Tilly JFC is Baker Tilly International's Middle East member firm offering SOC, ISO 27001, PCI DSS, and compliance audit services across the Gulf region.
Barnes Dennig
Cincinnati, OH
Barnes Dennig is a Cincinnati-based CPA firm with a dedicated SOC reporting team delivering SOC 1, SOC 2, and SOC 3 examinations.
BARR Advisory
Fairway, KS
BARR Advisory is a Kansas-based cybersecurity and compliance firm specializing in SOC 2, HITRUST, FedRAMP, and ISO 27001 audits for cloud-first companies.
BDO Australia
Melbourne, Australia
BDO Australia is a leading mid-market audit and advisory firm providing SOC 2, ISO 27001, Essential Eight, and Privacy Act compliance services to Australian businesses across technology, financial services, and healthcare.
BDO France
Paris, France
BDO France offers SOC, ISO 27001, and GDPR compliance audit services.
BDO Germany
Hamburg, Germany
BDO Germany is a leading mid-market audit and advisory firm providing ISO 27001, C5, TISAX, SOC 2, and GDPR compliance services to German mid-market companies and the Mittelstand.
BDO India
Mumbai, India
BDO India provides SOC, ISO 27001, and DPDPA compliance audit services.
BDO Ireland
Dublin, Ireland
BDO Ireland offers SOC, ISO 27001, and GDPR compliance audit services.
BDO Japan
Tokyo, Japan
BDO Japan is a mid-market audit and advisory firm providing ISO 27001, SOC 2, APPI, and P-Mark compliance services to mid-market companies and foreign-invested businesses operating in Japan.
BDO Singapore
Singapore
BDO Singapore is a mid-market audit and advisory firm providing SOC 2, ISO 27001, PDPA, and MTCS compliance services to SMEs, mid-market firms, and listed companies in Singapore.
BDO UAE
Dubai, UAE
BDO UAE is BDO International's member firm in the UAE, providing audit, tax, and advisory services with strong compliance capabilities for Gulf businesses.
BDO UK LLP
London, United Kingdom
BDO UK is one of the UK's largest accountancy and business advisory firms, providing SOC 2, ISO 27001, GDPR, and Cyber Essentials audit services to mid-market and enterprise organizations.
Berdon LLP
New York, NY
Berdon LLP is a New York-based CPA firm offering SOC 1, SOC 2, HIPAA, and IT audit services for mid-market real estate and financial services companies.
Berger Toombs
Tucson, AZ
Berger Toombs is a Tucson CPA firm providing SOC and HIPAA audits.
Berkowitz Pollack Brant
Miami, FL
Berkowitz Pollack Brant is a Miami-based CPA and advisory firm founded in 1980, now part of Baker Tilly, offering SOC 1, SOC 2, and IT consulting services.
BerryDunn
Portland, ME
BerryDunn is a Portland, Maine-based assurance and consulting firm delivering SOC 1/2, HIPAA, HITRUST, and NIST-based assessments nationwide.
BKD CPAs & Advisors
Springfield, MO
BKD CPAs & Advisors is a leading mid-market US CPA firm based in Missouri offering SOC, ISO 27001, HIPAA, and cybersecurity audit services across the central United States.
BKM Sowan Horan
Dallas, TX
BKM Sowan Horan is a Dallas CPA firm offering SOC, SOX, and HIPAA compliance audits.
Bland & Associates
Omaha, NE
Bland & Associates is an employee-owned Omaha, NE CPA firm founded in 1976, offering SOC 1 and SOC 2 examinations and assurance services.
Blue & Co.
Carmel, IN
Blue & Co. is a Carmel, IN CPA and consulting firm offering SOC 1, SOC 2, HIPAA, and HITRUST compliance services with deep healthcare expertise.
BMSS Advisors & CPAs
Birmingham, AL
BMSS Advisors & CPAs is a Birmingham, AL accounting and advisory firm founded in 1991, providing SOC 1 and SOC 2 examinations and IT controls services.
Bober Markey Fedorovich
Akron, OH
Bober Markey Fedorovich is an Akron, OH CPA and advisory firm founded in 1959, offering SOC 1 and SOC 2 examinations and assurance services.
Bonadio Group
Pittsford, NY
The Bonadio Group is a top-50 CPA firm in Pittsford, NY whose information risk practice delivers SOC 1, SOC 2, HIPAA, HITRUST, and PCI DSS audits.
Boulay Group
Minneapolis, MN
Boulay Group is a top-10 Minnesota CPA firm with 300+ professionals offering SOC reporting, HIPAA audits, and Microsoft SSPA assessments.
BPM LLP
San Jose, CA
BPM LLP is a leading West Coast accounting firm providing SOC 2, ISO 27001, and HIPAA audit services to technology companies and mid-market organizations in Silicon Valley and beyond.
Brown Edwards
Roanoke, VA
Brown Edwards is a Roanoke, VA-based CPA firm with 13 offices across three states, offering SOC 1 and SOC 2 examinations and assurance services.
BSK Associates
Sacramento, CA
BSK Associates is a Sacramento CPA firm providing SOC and HIPAA compliance audits.
BSR & Associates LLP
Mumbai, India
BSR & Associates LLP is KPMG India's audit affiliate, offering SOC 1, SOC 2, ISO 27001, and compliance audit services for enterprise and mid-market clients.
BSR & Co (KPMG India affiliate)
Mumbai, India
BSR & Co is KPMG's affiliate firm in India, providing audit, assurance, tax, and advisory services with Big Four methodology to Indian enterprises.
Camacho & Co
Bogota, Colombia
Camacho & Co is a Colombian CPA firm offering SOC, ISO 27001, and compliance audit services for mid-market companies in Colombia and the Andean region.
Carr Riggs & Ingram
Enterprise, AL
Carr Riggs & Ingram is a Top 25 CPA firm offering SOC, SOX, and HIPAA compliance audits.
CBIZ
Cleveland, Ohio
CBIZ is a leading US business services company offering audit, tax, insurance, and advisory services through 100+ offices across the United States.
CBT Advisors
Boston, MA
CBT Advisors is a Boston-based CPA firm offering SOC 2, SOC 1, and HIPAA compliance audits for technology and healthcare companies.
Centri Business Consulting
Philadelphia, PA
Centri Business Consulting is a Philadelphia-based advisory firm providing SOC 1/SOC 2 reporting, ISO 27001, and SOX internal-controls services.
Cherry Bekaert
Richmond, Virginia
Cherry Bekaert is a top-25 US CPA firm providing audit, tax, and advisory services with strong presence in the Southeast and growing national coverage.
Clark Nuber
Bellevue, WA
Clark Nuber is a Bellevue CPA firm offering SOC, SOX, and HIPAA compliance audits.
ClearView Audit Group
Denver, CO
ClearView Audit Group is a Denver CPA firm specializing in efficient SOC 2 and HIPAA audits for SaaS companies.
Cohen & Company
Cleveland, OH
Cohen & Company is a top-tier Cleveland-based CPA firm with ~900 professionals offering SOC 1 and SOC 2 attestation alongside assurance, tax, and advisory.
CohnReznick LLP
New York, NY
CohnReznick is a top-20 US accounting firm providing SOC 2, ISO 27001, HIPAA, and financial audit services to mid-market and enterprise clients across technology, financial services, and healthcare.
Condley and Company
Abilene, TX
Condley and Company is an Abilene, TX CPA firm founded in 1939 offering SOC 1 and SOC 2 examinations plus audit, tax, and consulting services.
ControlCase
Fairfax, Virginia
ControlCase is a compliance and cybersecurity firm specializing in PCI DSS, SOC 2, ISO 27001, and HITRUST audits with a unified compliance approach.
CrossCountry Consulting
McLean, VA
CrossCountry Consulting is a McLean, VA business advisory firm founded in 2011, offering SOC 1/SOC 2 readiness, SOX, and risk advisory services.