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Ramon J. Quisumbing


Ramon J. Quisumbing is the managing partner of Quisumbing Torres and a member of the Dispute Resolution Practice Group. He has represented numerous multinational companies, including AT&T, The Dow Chemical Company, Cisco, Budget Rental, Occidental Chemical, Taisei, TeleTech, Agilent, Steelcase and Intel.

Practice Focus

Ramon's practice focuses on litigation, alternative dispute resolution, and international arbitration. He handles commercial, civil and appellate litigation.

Representative Legal Matters

  • Represent an information technology company in a dispute involving services rendered under a contract to supply the Southeast Asian Games Information System, worth around USD 3 million.  

  • Represent and advise a leading Philippine life insurance company in criminal litigation filed by an insurance agent.  

  • Represent two of the world's leading chemical companies in several cases filed by many thousands of banana plantation workers for the injuries they allegedly suffered from certain pesticides, which together constitute possibly the biggest damages/tort suits ever filed in the Philippines. 

  • Represent a Philippine subsidiary of a European sheet metals, industrial equipment and tools manufacturing company in a lease dispute with the owner-lessor of eight buildings leased by the client for its manufacturing plant. 

  • Represent an international insurance brokering and financial services corporation based in the UK in litigation against a Philippine government-owned and controlled corporation to enforce a reinsurance agreement. 

  • Advise and represent an American multinational oil and gas exploration and production company in a suit filed by an international environmental organization before the Philippines Commission on Human Rights, seeking to hold many of the world's largest oil, coal, cement, and mining companies liable for climate change-caused damages supposedly arising out of their carbon emissions. 

  • Represent a decedent's estate in the probate of a foreign will and assist in the ancillary administration of properties in the Philippines. 

  • Frequently handle the settlement of estates of high net worth individuals.

Professional Honors

  • Leading Individual for Dispute Resolution, The Legal 500 Asia Pacific, 2016 to 2024
  • Eminent Practitioner for Dispute Resolution, Chambers Asia Pacific, 2014 to 2024
  • Eminent Practitioner for Dispute Resolution: Arbitration, Chambers Asia Pacific, 2014 to 2024
  • Litigation Star for Commercial and Transactions, Benchmark Litigation, 2019 to 2023
  • Litigation Star for International Arbitration, Benchmark Litigation, 2019 to 2023
  • Elite Practitioner for Dispute Resolution & Litigation, asialaw Leading Lawyers, 2019 to 2023
  • A-List Lawyer, The Philippines' Top 100 Lawyers, Asia Business Law Journal, 2018 to 2023
  • Legal 500 Private Practice Arbitration Powerlist - South East Asia Region, 2022 to 2023
  • Commended External Counsel of the Year (Philippines), In-House Community, 2022-2023

Professional Associations and Memberships

  • Integrated Bar of the Philippines - Member
  • International Bar Association - Member
  • New York State Bar Association - Member
  • American Bar Association - Member


  • Philippines (1991)
  • New York~United States (1986)
  • Virginia~United States (1980)
  • District of Columbia~United States (1979)


  • Georgetown University (J.D.) (1979)
  • University of South Florida (B.S.) (1976)


  • English
  • Filipino