About Abacus Accounting Center, LLC

Abacus Accounting Center, LLC is a local Denver, CO CPA Firm providing local businesses and individuals with tax and accounting services. We know our small business owners take pride in their business - and we do too - which is why we work hard to reduce your expenses and increase your productivity. We also take our knowledge in savings and translate that to reliable tax services to help our individual clients maximize income and minimize taxes.

Interested in seeing how Abacus Accounting Center, LLC can help you with your tax or accounting needs? Give us a call at 303-275-8910 to schedule your free initial consultation. We look forward to working with you!

Our Staff

Trey D Horton, CPA, MBA

Trey has nearly 20 years of experience in public accounting with a focus on small businesses and individuals. He has extensive experience in the retail, manufacturing, wholesale, real estate, medical, and service industries. He works with business owners and individuals to reduce their taxable income to make sure they are taking advantage of all tax breaks. While the owner of Abacus Accounting Center, he could not do it without the wonderful staff that are here.

Cynthia A Martin, CPA – Tax Manager

Cindy has over 20 years of experience in public accounting, including both tax and accounting services.  She specializes in small businesses and individuals.  She works closely with her clients in providing financial & tax planning guidance.  She also helps new businesses with various tax-related issues, including what type of entity is best.  She is a licensed Certified Public Accountant in the states of Colorado and Washington.

Cynthia A Ruhaack, Staff Accountant

Cindy has over 40 years of accounting experience both in the corporate world and in public accounting. She loves working with her clients and is so happy to see their businesses doing well. Many of her clients are people she’s worked with since she started with Abacus. They have become good friends. She has taken many accounting and tax classes which enable her to stay current on the ever changing rules and regulations.

Anthony Shah, Tax Staff Accountant

Anthony graduated from Colorado State University with a Bachelor of Science degree in Accounting. Upon his graduation in 2015, he joined the firm as a tax staff accountant. During his time with Abacus, his main focus has been on individual taxation. He has decided to further his knowledge in taxation by earning the IRS Enrolled Agent license.

Gennie L Hawbaker, Office Manager

Gennie has worked in public accounting office management for over 20+ years and ensures the smooth day to day business of the Abacus office. Her responsibilities range from answering the phone, billing, staff support, as well as client services. Some previous roles have included merged multiple offices into one consolidated office, IT administration & technical support coordination.