Assurance services

Assurance teams serve the public interest by promoting trust and confidence in business and the capital markets.

EY Assurance services – comprising Audit, Climate Change and Sustainability Services (CCaSS), Financial Accounting Advisory Services (FAAS), Forensic & Integrity Services (Forensics), and Technology Risk – address risk and complexity, while identifying opportunities to enhance trust in the capital markets.

Audit and Technology Risk teams serve the public interest by providing high-quality, analytics-driven audits and other assurance services with independence, integrity, objectivity and professional skepticism.

CCaSS, FAAS, Forensics and Technology Risk teams help protect and restore enterprise and financial reputations and help support the finance function in enhancing decision-making and efficiency. Moreover, they help clients address data, technology and sustainability risks and opportunities, turning ambition into action. Thanks to the global experience of Assurance talent and innovative technology, they help clients navigate complex reporting standards.

Together, EY Assurance services help protect and promote sustainable, long-term value for stakeholders.

Our latest thinking

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How can trust survive without integrity?

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How can trust survive without integrity?

Careers at EY

At EY, you’ll have the chance to build a career as unique as you are, with the global scale, support, inclusive culture and technology to become the best version of you.

The team

Hiroki Matsumura

EY Japan Managing Partner, Assurance; Chairman and CEO, Ernst & Young ShinNihon LLC

DE&I advocate. Developing future leaders through activities within the firm and beyond.

EY refers to the global organization, and may refer to one or more, of the member firms of Ernst & Young Global Limited, each of which is a separate legal entity. Ernst & Young Global Limited, a UK company limited by guarantee, does not provide services to clients.