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Guillen Pujol CPA

We are a full-service accounting boutique firm specialized in international tax and business consulting, designed to deliver the same services that Fortune 500 companies receive from the Big Four firms. 

Our focus is to put these services within reach of all-size businesses as well as federal, state, and local government agencies. To meet our premise, we have assembled an elite team of partners, professional advisors, and foreign correspondents, who come from large firms that assist companies in the Fortune 500 environment.

We have streamlined processes, identifying and eliminating the most costly and unnecessary infrastructures to optimize investments and help your business grow in size, scope, and revenue at a fraction of the cost associated with traditional firms.


Nestor L. Guillén, Founder 

Mr. Guillén is internationally recognized as a financial expert with over 30 years of extensive experience in the fields of accounting advisory, tax-planning, tax-consulting, mergers and acquisitions, tax and financial due diligence, and cross-border transactions for individuals, and corporations, in the U.S., Latin America, and the Caribbean.

Mr. Guillén is the founder and CEO of Globalbiz Tax & Business Consulting, and Guillen Pujol CPAs. He was the Founder and Managing Partner of Grant Thornton Venezuela until his arrival in South Florida, where he served as Executive Director of Grant Thornton LLP’s Latin America Tax Gateway and as a member of Grant Thornton International’s Latin American Executive Committee.

Additionally, Mr. Guillén has served on numerous boards, including the British American Chamber of Commerce of Florida, the International Committee of the Greater Miami Chamber of Commerce, and several bi-national Chambers of Commerce in South Florida. 

Mr. Guillén graduated from the ‘Universidad del Zulia’, in Maracaibo, Venezuela,  as a Certified Public Accountant. He also earned a specialized degree in International Businesses from the ‘Universidad Metropolitana,’ in Caracas, and completed an MBA from ‘Keller Graduate School of Business’ at Devry University in the United States, where he graduated with honors.

Mr. Guillén is licensed as a CPA in Florida and in Venezuela.