Reiner Jeffrey E. Abdon



Reinier Jeffrey E. Abdon joined Siguion Reyna, Montecillo & Ongsiako in 2022 after being admitted to the bar the same year. His practice areas include Labor Law, Taxation and Corporate Law.

He obtained his Juris Doctor degree from the University of the Philippines College of Law. He earlier obtained his Bachelor of Science in Accountancy from Philippine Christian University and is a Certified Public Accountant, placing sixth in the May 2009 CPA examinations. He previously worked with SGV & Co. as a business consulting senior associate specializing in IT internal controls and is also a Certified Information Systems Auditor (CISA). He then worked with the Department of Finance as a technical consultant for the International Finance Group and Committee on Debt Management.

Practice Areas

  • Labor Law
  • Taxation
  • Corporate Law


  • University of the Philippines
  • Philippine Christian University

Awards & Association

  • Integrated Bar of the Philippines
  • Philippine Institute of Certified Public Accountants
  • ISACA Manila Chapter
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Visiting Address

4th & 6th Floors, BDO Towers Paseo (Formerly Citibank Center)

8741 Paseo de Roxas

Makati City 1226, Philippines


Phone Number

+63 (2) 88100282-90

Fax Number

+63 (2) 88191498


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