K. Y. YONG & CO. (AF1519) is a licensed audit and tax firm based in Sabah, Malaysia providing audit & assurance, taxation, accounting and business advisory services including IT solutions to businesses in all types of industries. We believe in helping our clients by becoming their trusted and preferred business advisor in facing today's challenging business landscapes. We always strive to add values in our professional services to clients.

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In November 2024, we became a member of CAS INTERNATIONAL, an inclusive professional network for advisory, consulting, accounting, auditing, taxation, corporate services and other service providers worldwide. With an international presence, it enables us to aggregate the best network, resources, insights and capabilities to create immense value for growing, high-calibre businesses worldwide. 

CAS International has established presence across 6 countries, namely Malaysia (13 offices), Singapore (1 office), Thailand (1 office), Indonesia (4 offices), Hong Kong (1 office) and the United Kingdom (1 office).