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Global Tax & Accounting Experts—35 Years of Financial Solutions. Planning Tomorrow, Together. Because smart tax strategies create lasting success.
At Guillen Pujol CPAs, we do more than balance numbers—we build financial success. As trusted advisors in international tax strategy, compliance, and business growth, we help companies and individuals navigate complex financial landscapes with ease.
With over 35 years of global expertise, we specialize in international tax planning, corporate accounting, and regulatory compliance, delivering tailored solutions designed for long-term success.
Our approach is hands-on and proactive—offering expert-led, personalized service with strategic insights that drive growth.
From wealth preservation to global tax optimization, we provide data-driven strategies that empower you to scale, safeguard assets, and thrive—no matter where you do business.
With over 35 years of global tax expertise, Nestor Guillen is a trusted authority in international tax strategy, financial compliance, and cross-border advisory. He has advised Fortune 500 companies, multinational corporations, and high-net-worth individuals, shaping tax strategies that drive growth, protection, and long-term success.
Nestor’s career includes senior leadership roles at Price Waterhouse Venezuela, Grant Thornton Venezuela, and Grant Thornton USA, where he led high-stakes tax initiatives across Latin America, helping businesses navigate complex and evolving global tax regulations.
In 2009, fueled by a vision for personalized, high-impact service, he founded Globalbiz Tax & Business Solutions in the U.S., which later became Guillen Pujol CPAs in 2016. Under his leadership, the firm blends Big Four expertise with hands-on, client-first advisory, ensuring that businesses and individuals receive precision-driven strategies for sustainable financial success.
At GPCPAs, we don’t just manage numbers—we empower businesses, protect wealth, and create opportunities across borders.
At Guillen Pujol CPAs, we don’t just follow global tax and accounting standards—we help shape them.
As a proud member of the American Institute of CPAs (AICPA), we uphold the highest standards of financial excellence and integrity. Through our affiliation with XLNC, a leading global alliance of independent firms, we collaborate with top industry experts worldwide, ensuring our clients receive best-in-class cross-border solutions.
These strategic partnerships provide exclusive access to cutting-edge financial insights, evolving global tax regulations, and industry-leading best practices—keeping Guillen Pujol CPAs ahead of the curve in international tax strategy, compliance, and corporate advisory.
Simplify tax planning. Maximize global opportunities.
Partner with Guillen Pujol CPAs today—and unlock your company’s full potential.
At Guillen Pujol CPAs, we take pride in being Certified QuickBooks ProAdvisors, a distinction that reflects our vast experience and expertise in utilizing QuickBooks. This certification assures our clients of expert financial management, precise accounting, and optimized bookkeeping solutions that enhance efficiency and ensure regulatory compliance. With a high volume of operations on the platform, we are committed to delivering exceptional, tailored services that meet the specific needs of each client.
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At Guillen Pujol CPAs, we do more than balance numbers—we build financial success. As trusted advisors in international tax strategy, compliance, and business growth, we help companies and individuals navigate complex financial landscapes with ease.
With over 35 years of global expertise, we specialize in international tax planning, corporate accounting, and regulatory compliance, delivering tailored solutions designed for long-term success.
Our approach is hands-on and proactive—offering expert-led, personalized service with strategic insights that drive growth.
From wealth preservation to global tax optimization, we provide data-driven strategies that empower you to scale, safeguard assets, and thrive—no matter where you do business.
With over 35 years of global tax expertise, Nestor Guillen is a trusted authority in international tax strategy, financial compliance, and cross-border advisory. He has advised Fortune 500 companies, multinational corporations, and high-net-worth individuals, shaping tax strategies that drive growth, protection, and long-term success.
Nestor’s career includes senior leadership roles at Price Waterhouse Venezuela, Grant Thornton Venezuela, and Grant Thornton USA, where he led high-stakes tax initiatives across Latin America, helping businesses navigate complex and evolving global tax regulations.
In 2009, fueled by a vision for personalized, high-impact service, he founded Globalbiz Tax & Business Solutions in the U.S., which later became Guillen Pujol CPAs in 2016. Under his leadership, the firm blends Big Four expertise with hands-on, client-first advisory, ensuring that businesses and individuals receive precision-driven strategies for sustainable financial success.
At GPCPAs, we don’t just manage numbers—we empower businesses, protect wealth, and create opportunities across borders.
At Guillen Pujol CPAs, we don’t just follow global tax and accounting standards—we help shape them.
As a proud member of the American Institute of CPAs (AICPA), we uphold the highest standards of financial excellence and integrity. Through our affiliation with XLNC, a leading global alliance of independent firms, we collaborate with top industry experts worldwide, ensuring our clients receive best-in-class cross-border solutions.
These strategic partnerships provide exclusive access to cutting-edge financial insights, evolving global tax regulations, and industry-leading best practices—keeping Guillen Pujol CPAs ahead of the curve in international tax strategy, compliance, and corporate advisory.
Simplify tax planning. Maximize global opportunities.
Partner with Guillen Pujol CPAs today—and unlock your company’s full potential.
At Guillen Pujol CPAs, we take pride in being Certified QuickBooks ProAdvisors, a distinction that reflects our vast experience and expertise in utilizing QuickBooks. This certification assures our clients of expert financial management, precise accounting, and optimized bookkeeping solutions that enhance efficiency and ensure regulatory compliance. With a high volume of operations on the platform, we are committed to delivering exceptional, tailored services that meet the specific needs of each client.
Thanks for contacting us!
Someone will reach out to you via email.
Send another form
At Guillen Pujol CPAs, we do more than handle taxes—we empower businesses worldwide to navigate complex financial landscapes with confidence. Our tailored tax, accounting, and advisory solutions are designed to drive growth, ensure compliance, and unlock global opportunities.
With deep expertise in international tax strategy and financial planning, we help companies cut through red tape, minimize risk, and maximize success in an ever-changing global economy.
Built on trust. Driven by precision. Focused on your future.
To be the world’s most trusted financial partner, transforming how businesses manage global tax challenges, seize opportunities, and achieve sustainable success.
We envision a future where international tax and financial strategy aren’t obstacles—but powerful tools that fuel growth, innovation, and prosperity across borders.
Global impact. Smarter solutions. Unmatched expertise
At Guillen Pujol CPAs, we do more than handle taxes—we empower businesses worldwide to navigate complex financial landscapes with confidence. Our tailored tax, accounting, and advisory solutions are designed to drive growth, ensure compliance, and unlock global opportunities.
With deep expertise in international tax strategy and financial planning, we help companies cut through red tape, minimize risk, and maximize success in an ever-changing global economy.
Built on trust. Driven by precision. Focused on your future.
To be the world’s most trusted financial partner, transforming how businesses manage global tax challenges, seize opportunities, and achieve sustainable success.
We envision a future where international tax and financial strategy aren’t obstacles—but powerful tools that fuel growth, innovation, and prosperity across borders.
Global impact. Smarter solutions. Unmatched expertise.
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