noun
audit corporation; auditing firm
A legal entity that performs statutory audits, especially under the Certified Public Accountant Act in Japan.
大手監査法人が上場企業の会計監査を担当している。
A major audit corporation is in charge of the financial audit of the listed company.
会計士 is a certified public accountant (individual), while 監査法人 is the firm or corporation that employs such accountants to conduct audits.
Compound of 監査 (audit, inspection) and 法人 (corporation, legal entity).