
Welcome to APEX CPAs & Advisors LLP, where your financial success is our mission.
We empower our clients, people, and communities to achieve their financial goals and enhance their quality of life, offering nationwide accounting and tax services with personalized solutions in English, Korean, and Spanish via video chat, email, or phone.
At APEX …
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We are committed to providing exceptional attestation services, tax filing and planning, outsourced accounting and CFO solutions, valuation services, and IT services for individuals, small to medium-sized businesses, and nonprofit organizations.
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We aim to support the growth and prosperity of every individual and business we serve. Our purpose is to be more than just accountants; we strive to be trusted advisors and partners in our clients' success.
Our Services

Attestation Services
Audits: Comprehensive and independent examinations of your financial statements, ensuring accuracy and compliance.
Reviews: Detailed assessments providing limited assurance on the reliability of your financial information.
Compilations: Let our experts compile your financial statements, presenting data clearly and accurately.

Tax Services
Tax Filing: Stay compliant and maximize your returns with our comprehensive tax filing services for individuals, businesses, and nonprofit organizations.
Tax Planning: Strategize and optimize your tax liabilities with our expert tax planning services, designed to yield tax advantages.

Outsourced Accounting & CFO Services
Outsourced Accounting: Focus on growing your business while we handle your accounting needs, ensuring accuracy and timeliness.
CFO Services: Benefit from strategic financial insights and leadership with our outsourced CFO services, helping you make informed decisions and drive growth.

Valuation Services
We provide independent business valuation services tailored for small business owners, whether they are planning to buy or sell a local business, bring in new partners, or prepare for a transition. We also support valuations for financial reporting, tax planning, and succession strategies. Our experienced team delivers practical and reliable valuations to help guide your key business decisions.

IT Services
We provide IT consulting and technology services tailored for small and medium-sized enterprises transitioning to paperless accounting environments. Our areas of expertise include workflow optimization, accounting software implementation and maintenance, and comprehensive IT support designed to minimize system downtime and maximize operational efficiency.
Meet Our Leadership Team
We pride ourselves on our client-centric approach. Our commitment to excellence, integrity, and personalized service sets us apart from the rest. We understand that every client is unique, and we tailor our services to meet your specific needs and goals.
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Don Kim is a certified public accountant with extensive experience in public accounting. He has held positions at Big 4 accounting firms and is skilled in financial reporting for NYSE- and NASDAQ-traded companies. His expertise spans audit, financial reporting, technical accounting, outsourced accounting services, and tax filing.
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Antonio G. Martin is a certified public accountant who graduated with honors from Rutgers University. He has over three decades of working in the public and private sectors and has extensive experience dealing with income taxes, both individual and corporate, and international taxes as well as the IRS, the Department of Labor, and federal and state compliance audits, including unemployment and payroll taxes. He is fluent in Spanish.
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Andy Ahn brings years of hands-on experience supporting businesses and individuals with tax filing, outsourced accounting services, sales tax, and payroll tax matters. He has managed numerous tax compliance projects, prepared returns, maintained accurate financial records for clients across diverse industries, and has extensive experience representing clients before the IRS and state auditors.
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Eugene Lee is a distinguished professional with a wealth of expertise in delivering comprehensive tax filing services, outsourced accounting services, and the implementation and administration of information systems and accounting software.
