Atty. Greg Joseph SJ Tiongco


Admitted to the Philippine Bar, 2004. Education:  Ateneo de Manila University (B.S. Management, 1999).  Ateneo Law School (Juris Doctor, Second Honors, 2003).

Greg Joseph S.J. Tiongco

Atty. Tiongco has extensive experience in Corporate Law including acquisitions and mergers. He served as counsel for one of the biggest acquisition of government assets in the Philippines. He is also corporate counsel to a number of internationally as well as locally listed companies and/ or its subsidiaries. Pursuant to this, he has worked with different international law firms to service the Firm’s international clients.

He is also experienced in Labor and Management Relations law, being counsel to one of the biggest manpower agencies globally and leading local manpower agencies. Atty. Tiongco also serves as labor counsel to a number of business process outsourcing companies.

Atty. Tiongco has an active litigation practice.  He  has acted as counsel in various litigation cases for over fifteen years ranging from corporate takeovers, contract disputes and complex criminal cases.

Atty. Tiongco is one of the few practitioners of Data Privacy Law. He has attended various seminars and conferences on data privacy. He has also conducted quite a number of privacy impact assessments on various clients including NYSE listed companies.

Atty. Tiongco is an accredited Arbitrator of the The Philippine Dispute Resolution Center, Inc. He also previously served as Special Legal Counsel for the Presidential Commission on Good Governance (PCGG) and Legal Consultant to Mandaue City, Province of Cebu.