Greg Joseph S.J. Tiongco

Greg Joseph S.J. Tiongco is a co-managing and founding partner of Tiongco Siao Bello & Associates Law Offices, whose practice underpins the firm's recognition as Business Process Outsourcing Law Firm of the Year in the Philippines at the Corporate INTL Global Awards 2024. The award reflects the firm's strength in advising the outsourcing and shared-services sector that is central to the Philippine economy.

Greg Joseph S.J. Tiongco is a co-managing and founding partner of Tiongco Siao Bello & Associates Law Offices, one of the most active and well-known law firms in the Philippines. He co-founded the firm alongside John Philip Siao and Karlo Bello, and it has since grown to operate offices in Metro Manila, Cebu City and Davao City, serving an international client base drawn from across Asia, North America and beyond. With a career spanning around two decades, he is recognised for his extensive experience across corporate law, mergers and acquisitions, litigation, labour law, and data privacy and compliance. He graduated with honours from the Ateneo de Manila University School of Law, where he was a silver-medal recipient, and is a member of the Philippine Bar.

Tiongco's professional standing has been acknowledged well beyond a single award. He has been named among the top clients' choice lawyers in the Philippines, listed among the top 50 technology, media and telecommunications lawyers in Asia by Asian Legal Business and Thomson Reuters, and recognised among Asia's leading disputes lawyers. He has acted as counsel on major matters, including one of the largest acquisitions of government assets in the country and the facilitation of the entry of the Philippines' third telecommunications provider, and provides corporate counsel to Philippine conglomerates, multinationals and listed companies, frequently working alongside international law firms.

The business process outsourcing industry is one of the Philippines' most important economic sectors, employing large workforces and serving clients around the world, and legal advice to it draws on precisely the disciplines in which Tiongco and his firm are strongest. Outsourcing arrangements sit at the intersection of corporate and commercial contracting, labour and employment law, data privacy and regulatory compliance. Advisers to the sector must structure and negotiate service relationships, manage the workforce and industrial-relations dimensions of large operations, and safeguard the personal and client data that these businesses process on behalf of their customers. Tiongco's combined expertise across corporate, labour and data-privacy work equips the firm to serve both outsourcing providers and the international companies that engage them. That data-privacy dimension has become increasingly prominent as outsourcing providers handle growing volumes of sensitive information for clients in more heavily regulated jurisdictions. A firm advising the sector must therefore combine transactional and employment capability with a command of the compliance frameworks governing the handling of personal data, an area in which Tiongco has developed particular experience. The firm's recognition among Asia's leading technology, media and telecommunications lawyers reflects this alignment between its practice strengths and the needs of a technology-enabled services industry.

The firm serves clients across a wide range of industries and jurisdictions, and its recognition as Business Process Outsourcing Law Firm of the Year in the Philippines at the Corporate INTL Global Awards 2024 confirms its reputation in a sector of national economic significance. The award reflects the depth of experience that Tiongco and his partners bring to advising the outsourcing industry, and the firm's position as one of the country's most active practices in this field.