About the Business
Lewis & Harrison CPA Group
Portland, OR
Financial Services
Lewis & Harrison CPA Group is a full-service accounting firm founded in 1992 by owner Diana LJ Harrison, CPA. Our mission is to build trust with our clients and help them realize their financial goals through delivering value-added services. We offer a wide range of tax preparation, accounting and payroll services, business consulting, estate planning, and financial and retirement planning.
Our team has many years of experience in the field, and is committed to providing high quality services. We are dedicated to helping our clients achieve success and understand their needs to develop an individualized success model.

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- Diana LJ Harrison started Diana LJ Harrison CPA, P.C. in 1992 after several years in public accounting. While Diana thrived in a larger accounting group, she sought to build a practice that better match her vision and values. Her vision was simple - build an accounting practice that clients saw a true partner, not just in tax planning and preparation, but in building overall financial and health. Additionally, she wanted to surround herself with staff that was focused on individual development and dedication to their craft. In 2012, Diana brought on her first partner and after twenty years a sole practitioner, changed the name to Lewis & Harrison CPA Group. Kelsey F. Lewis, CPA joined the practice in 2011 after working closely with the firm for many years as a seasonal tax preparer. The addition of Kelsey as partner ushered in a new generation of CPAs, which will allow the firm to continue to grow and serve our clients for many years to come.
- (503) 906-9500
- 15350 SW Sequoia Pkwy Ste 150, Portland, OR 97224
- Visit Website
Opening Time
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Mon
9:00 AM - 5:00 PM
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Tue
9:00 AM - 5:00 PM
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Wed
9:00 AM - 5:00 PM
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Thu
9:00 AM - 5:00 PM
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Fri
9:00 AM - 5:00 PM
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Sat
9:00 AM - 5:00 PM
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Sun
9:00 AM - 5:00 PM