About Us
Vision
To be the most trusted CPA firm for professionals and entrepreneurs seeking clarity, growth, and peace of mind.
Mission
To deliver exceptional, honest, and insightful accounting and tax advisory services that help our clients build lasting financial strength—one decision at a time.
Our Values
Proactive, not reactive
Transparent communication
Long-term client relationships
Education-driven advice
Integrity above all
Meet the Founder
Charles Ekweribe
CPA, EA, MBA | Founder & Principal Advisor, NobHill CPA PLLC
Charles is a licensed CPA, Enrolled Agent, and experienced business strategist who has helped hundreds of clients across industries make smarter financial decisions.
His career includes:
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Leading audits while working at a Top 10 public accounting firm
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Managing statutory financial reporting of a multibillion-dollar public company
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Serving as a business banker advising entrepreneurs
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Consulting for law firms, dentists, doctors, real estate professionals, and growing businesses across the U.S.
Charles holds dual credentials as a CPA and EA, giving him full representation rights before the IRS in all 50 states. He also holds an MBA degree, strengthening overall strategic and financial expertise.
“I founded NobHill CPA to help people like you gain financial clarity, reduce stress, and achieve meaningful business growth. Our approach is personal, proactive, and always grounded in your success.”
Meet Our Team
Monique Isnardi, MBA
Senior Tax Advisor
With over 30 years of tax and financial consulting experience, Monique brings extensive knowledge of small business tax law and international tax compliance.
Virgilio De Sousa, CPA
Accounting & Advisory Specialist
Virgilio supports our clients with clean bookkeeping, GAAP-level reporting, and KPI dashboards. He thrives in helping businesses stay organized and ready to scale.