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 Labour & Employment Law Firm of the Year in the Philippines at the Corporate INTL Global Awards 2024. The award reflects a long-standing strength in advising employers on workforce and industrial-relations matters.

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.

Labour and employment law is a demanding field in the Philippines, where employers must navigate detailed statutory protections, industrial-relations frameworks and an active adjudicatory system. Advising in this area requires a command of both the day-to-day management of employment relationships, from contracts and workplace policies to discipline and terminations, and the litigation and dispute-resolution skills needed when disagreements reach the labour tribunals and the courts. Tiongco's combined experience in labour and management relations and in litigation and disputes equips the firm to represent employers across the full range of workforce issues, including the large workforces typical of the outsourcing and technology sectors it serves. Employment matters frequently intersect with the wider corporate and regulatory work in which the firm is active, from workforce planning in mergers and acquisitions to the data-privacy questions that arise in managing employee information. A firm able to bring these disciplines together offers employers coherent advice that anticipates how a workforce decision interacts with the broader legal and commercial context, rather than treating employment law in isolation. This integrated approach is part of what distinguishes the firm's employment practice.

The firm serves clients across a wide range of industries and jurisdictions, and its recognition as Labour & Employment Law Firm of the Year in the Philippines at the Corporate INTL Global Awards 2024 confirms its reputation for advising employers. The award reflects the depth of experience that Tiongco and his partners bring to labour and employment work, and the firm's standing as one of the country's most active practices in the field.