top of page

Gerald Sumida is a Partner in Carlsmith Ball LLP's Honolulu office and a member of the firm's Business, Corporate & Finance practice group.  He concentrates on business structuring and operations, including corporate, limited liability company, joint venture and partnership matters; business acquisitions; sales and mergers; securities law; start-up company and venture capital financing; administrative and public utilities law; energy law, including energy project development and project finance; antitrust and trade regulation law; federal, state and county legislative and administrative matters; and international legal matters.


Mr. Sumida rejoined Carlsmith Ball LLP after serving from October 1999 to December 2002 as the General Counsel of the Asian Development Bank, a multilateral development bank established in 1966 to promote the economic and social development of the Asian and Pacific Region (ADB). ADB, based in Manila, Philippines, currently has 67 member countries, and provides development assistance to over 40 countries in this region. He led a group of 28 international lawyers, drawn from 25 countries, who handle ADB's international legal, financing, lending, borrowing, investment and development work, as well as ADB's institutional matters, and undertake their own law and policy reform projects in various countries, and he advised ADB's senior management and board of directors.


Mr. Sumida is listed in Chambers USA: America's Leading Lawyers for Business 2021 for Corporate/ Commercial law. Chambers said: "Gerald Sumida's practice features experience across a range of business and administrative law matters. His expertise includes transactions arising from the energy industry. He is very knowledgeable and has a great deal of experience in  matters before the PUC." 


Mr. Sumida was named Best Lawyers in America 2022 "Lawyer of the Year" - Corporate Governance Law. He is also listed in Best Lawyers in America 2022 for Business Organizations  (including LLCs and Partnerships), Corporate Governance Law, Corporate Law, Energy Law, and Securities / Capital Markets Law, and has been listed for these areas since 2010. In 2009, he was elected to  the position of Secretary-General of the Inter-Pacific Bar Association, an international  association of more than 1,600 business and commercial lawyers focused on legal  developments and regional legal cooperation in the Asia-Pacific Region.



Contact info:




Click here to visit website

Gerald A. Sumida - America's Top 50 Lawyer- Business Law - Hawaii

    bottom of page