BDO

Seonghyun Accounting Corporation, also known as BDO Seonghyun, is a Korean professional services firm and member of the BDO international network. Based in Seoul, it operates three additional offices in Korea and collaborates with BDO firms across a network spanning 169 countries. The firm reports annual revenue of KRW 55.4 billion and a workforce of approximately 320, and says it continues to invest in service quality and quality management.

Its services include financial statement audits, internal audits and internal control advisory, IFRS implementation support, private accountant services, project-cost settlement, and XBRL disclosure assistance. The firm also provides tax services, consulting, business services and outsourcing, and specialized advisory. Its consulting work includes information security assessments, support for security disclosures and certifications, and employee training in security and data protection. Seonghyun serves clients in sectors including financial services, media, entertainment and telecommunications, government and nonprofit organizations, and real estate and construction. Through its insights and publications, the firm also shares guidance on taxation, accounting, governance, digital compliance, and information security.