Offering high-quality accounting, taxation, and bookkeeping services at budget-friendly prices, Main Street Accountancy is the first choice for small businesses.

Established in 2015, Main Street Accountancy, Inc. is a professional corporation and licensed as a certified public accountancy corporation by California Board of Accountancy.

Company Profile

Main Street Accountancy was founded to support the small businesses and entrepreneurs that are essential to the US economy. Situated in the heart of Silicon Valley, you assume our focus aligns with the multi-million dollar tech firms, but Main Street Accounting stands apart. We prioritize the needs and budgets of small businesses like yours, committed to addressing the unique challenges they face in California. Our services utilize cutting-edge digital technology to provide highly secure, cloud-based solutions with easy online and quick turnaround times. While you concentrate on expanding your business, we take care of your accounting with accuracy efficiency, and attention to detail.

Bringing deep experience and meticulous attention to detail, the team at Main Street Accountancy is committed to delivering exceptional service, accurate and effective work, and the comprehensive support you deserve.
Whether you're just starting out or seeking a trusted CPA to guide you toward your next business milestone, we're here to help.

As of today, we serve over 250 small business clients, offering a tailored range of services to meet each business’s unique needs.
With a proven track record spanning more than 12 years, we assist hundreds of individuals and families each year in electronically filing their returns—saving thousands of dollars in taxes while safeguarding their hard-earned income.
We proudly uphold the AICPA Code of Professional Conduct and comply with all applicable laws, regulations, and professional standards.

Our Mission

Our mission is to deliver high-quality, trusted accounting and tax services at value-driven pricing—while upholding the highest standards of customer service, accuracy, and discretion.
We are committed to helping our clients navigate financial complexities with confidence, building lasting relationships through integrity, responsiveness, and personalized support.

Core Values

Respect

Trust

Quality

Integrity

We conduct every client interaction with honesty, fairness, and the highest ethical standards. Trust is the foundation of everything we do.

We uphold the highest standards in every aspect of our work, delivering precise, reliable service that our clients can count on.

We stand by our word and honor our commitments, building lasting relationships through transparency and reliability.

We value every client, treating each individual with dignity, professionalism, and genuine care.

Meet Our Principals

Vananh T Le,

aka Sophia Le

CPA, Founder

Vananh Le, also known as Sophia, is the founder of Main Street Accountancy and brings extensive experience in accounting for businesses of all sizes including global corporations such as ExxonMobil and small businesses like Fab9 Corporation and Bains Accountancy Corp. With a deep understanding of the unique challenges faced by entrepreneurs and small business owners, she founded Main Street Accountancy in 2015 to serve and support the small business community and working-class families.

Sophia is known for her meticulous attention to detail and her commitment to delivering exceptional service. Beyond providing expert tax and accounting solutions, she is passionate about educating and empowering clients to reach their full potential.

As the head of our firm’s tax and accounting services, Sophia ensures every client receives personalized, high-quality support rooted in integrity and care.

Thinh Nguyen

MBA, EA

From cash flow analysis to tailored financing solutions, Thinh has provided strategic support and guidance to business owners in many industries in his prior role as a Business Solutions Advisor at one of the largest financial institutions in the U.S. He now brings that insight, expertise, and financial acumen to Main Street Accountancy, where he continues to serve entrepreneurs and small businesses with dedication and expertise.

As a seasoned tax advisor, Thinh leverages his extensive experience and deep knowledge of tax law to offer thoughtful guidance and personalized solutions. He is always ready to answer questions and help clients navigate complex tax issues with clarity and confidence, while upholding the firm’s core values of quality, transparency, and excellence.

Thinh oversees payroll and bookkeeping services and leads the preparation of business tax returns, as well as specialty returns including trusts and estates, Form 5500 series for retirement plans, R&D credits, cost segregation, and more.

His commitment to empowering clients through education and expert service is at the heart of everything he does.