Santiago T. Gabionza

Villanueva Gabionza & De Santos Law Offices is a law firm based in Makati, Philippines. The firm offers a wide range of legal services to local and international clients, including commercial and corporate law, mergers and acquisition, litigation, taxation, securities, banking, finance, intellectual property, estate planning, transportation, labor, maritime, aviation, immigration, and public service law. The firm's practitioners are highly proficient in practicing and appearing before local government branches and agencies, judicial and quasi-judicial courts of all levels, legislative and administrative bodies, as well as in dealing with non-government agencies, privatized groups, and individual clientele. The firm is committed to providing comprehensive legal services and "service beyond expectations."

The Asia-Pacific Lawyers Association operates a lawyer's association. The private company is based in New Delhi, India.

ASEAN Law Association is a non-profit organization which engages in the promotion of relations, cooperation, and mutual understanding amongst lawyers in the Association of Southeast Asian Nation (ASEAN) countries. The firm also provides organizational facilities for ASEAN cooperation in conflict avoidance, in the arbitration or resolution of legal disputes in transnational contracts within the ASEAN region. The company was founded in February 1979 and is headquartered in Singapore.