• 818-758-4076
  • info@haarmann-obiako.com
  • Katy/Houston, Texas

Trusted CPA Services for Individuals & Small Businesses

Accuracy. Integrity. Confidence.

Haarmann & Obiako LLP is a licensed CPA firm delivering reliable tax preparation, tax planning, bookkeeping, and consulting services across Katy, Houston, and surrounding Texas communities. We help you stay compliant, organized, and financially confident—so you can focus on what matters most.

CPA-Led Expertise

Secure & Confidential Services

Schedule Your Free Consultation Today

Why Choose Haarmann & Obiako LLP?

  • Licensed Certified Public Accountants
  • Local expertise in Katy & Houston, TX
  • Professional, modern accounting solutions
  • Personalized client relationships
  • Year-round support beyond tax season
We combine technical expertise with clear communication and dependable service.
Work with licensed CPAs who deliver accurate, timely, and dependable financial support.
Start your consultation today
Start your consultation today

Our Core Services

Tax Services

Accurate tax preparation, proactive planning, and IRS representation for individuals and businesses.

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Bookkeeping & Accounting

Timely, organized financial records you can trust.

Business Consulting

Strategic insights to improve profitability, efficiency, and long-term growth.

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Fractional CFO Services

High-level financial leadership without the cost of a full-time CFO.

Services

Our Tax Services

We specialize in CPA (Cost Per Action) marketing that delivers measurable results.

Tax Preparation & Planning

We provide comprehensive tax services designed to reduce risk and improve financial outcomes
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Business Consulting

Strategic Financial Guidance
We help business owners make informed decisions with data-driven insights.
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Bookkeeping Services

Accurate Books. Clear Insights
Reliable bookkeeping services that provide clarity and support informed decision-making.
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Fractional CFO Services

Strategic financial leadership for growing businesses without the cost of a full time CFO.
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Meet the Partners

Brandon Haarmann, CPA

Co Founder & Partner

Isioma Obiako, CPA

Co Founder & Partner

Ready for Accurate, CPA-Level Financial Support?

Haarmann & Obiako LLP

Licensed Certified Public Accounting Firm
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Brandon Haarmann, CPA

Co Founder & Partner
Brandon Haarmann is a Certified Public Accountant with a Master of Science in Accounting from Sam Houston State University and more than 16 years of experience in accounting, auditing, and financial consulting. Before co founding Haarmann & Obiako LLP, he spent 15 years at a Big Four accounting firm auditing public and private companies in the oil and gas, manufacturing, and life sciences sectors.
Brandon brings deep expertise in US GAAP compliance, internal controls, SEC reporting, and business continuity planning. He is dedicated to helping clients navigate complex accounting standards, prepare for regulatory requirements, and strengthen the financial foundation of their businesses.

Isioma Obiako, CPA

Co Founder & Partner
Isioma Obiako is a Certified Public Accountant with a Master of Science in Accounting and more than 16 years of experience across public accounting and private industry. She specializes in bookkeeping, tax preparation, and financial consulting for individuals and small businesses across multiple industries.
Isioma’s approach is grounded in technical rigor and supported by professional grade accounting systems. She is known for her meticulous attention to detail, efficient processes, and ability to deliver timely, reliable financial information that empowers confident decision making. Her work ensures clients maintain accurate books, dependable tax strategies, and a clear understanding of their financial health.