About Us

Meet Our Team


Hamilton & Associates, Inc. is a full-service Certified Public Accounting firm licensed in Oklahoma and members of the American Institute of Certified Public Accountants and Oklahoma Society of Certified Public Accountants. All of our CPA’s hold valid Oklahoma CPA certificates.

Our Staff

Carl Hamilton, CPA

Carl has been a CPA since 1980, after graduating from Southern Nazarene University (Bethany Nazarene College). He has been with the firm first as an employee, then as a partner since 1978. Carl has extensive experience in all phases of federal and state income taxes, whether it be for individuals, and trusts or for businesses. His background in working with a variety of small and large businesses in providing them financial analysis as well as helping them implement effective accounting systems makes him an ideal partner to help you achieve a successful financial future.

Anna Hamilton, CPA

Anna has been a CPA since 1985, after graduating from Southern Nazarene University (Bethany Nazarene College) with her BS in Business Administration and later graduating with an MS in Adult Education from Oklahoma State University. She has been with the firm since 1989 as a partner. Before coming to the firm, Anna was the accounting department head at Oklahoma State University campus for eight years. Anna’s emphasis has been in helping small business and individual clients with a wide range of consulting, accounting, auditing, tax and Quickbooks issues.

Tim Brown, CPA

Tim Brown has been a CPA since 1981, after graduating from Southern Nazarene University in 1978. He has been with the firm since 2018. Tim provides tax and accounting services to a variety of individual and business clients. Tim is experienced in non-profit accounting and regulations.

Ronald Bradley, CPA

Ron has been a CPA since 1985, after graduating from Central State University. He has been with the firm since 1979. Ron provides tax and accounting services to a variety of individual and business clients. Ron is experienced in estate tax work.

Mary Whittaker, CPA

Mary has been a CPA since 1985, after graduating from Southern Nazarene University (Bethany Nazarene College). She has been with the firm since 2000. She has experience in financial statement compilation, tax preparation and auditing.

Eric Hamilton, EA

Eric is an Enrolled Agent specializing in Business and Individual tax preparation. Eric graduated from Southern Nazarene University in 2008 with a degree in Accounting. He joined the staff in 2007. He is experienced in tax preparation, financial statement compilation, bookkeeping, information technologies, payroll and sales tax preparation and extensive Quickbooks work.

Sandy Maravich

Sandy joined the firm in 2004. She has worked both in the private sector and in public accounting as a bookkeeper. She has vast experience in bookkeeping, payroll tax preparation, financial statement preparation, sales tax preparation, new business set up and regulations. Sandy is an experienced Quickbooks consultant.

Janie Kelly

Janie joined the firm in 2007. She has worked in various types of industries as a full charge bookkeeper. Janie’s experience includes bookkeeping, payroll tax preparation, financial statement preparation, sales tax preparation, new business set up and regulations. Janie is an experienced Sage Software consultant.

Debbie Tarpley

Debbie has been with the firm since 2015. She has worked in different bookkeeping positions with various companies prior to coming to Hamilton & Associates. Her experience includes bookkeeping, payroll tax preparation, financial statement preparation, sales tax preparation, new business set up and regulations and efficiency procedures.

Alice Clay

Alice has been with the firm since 2019. She is extremely knowledgeable in all areas of payroll and payroll tax preparation. Her years of experience in the field has also made her efficient in bookkeeping, financial statement preparation and new business set up and regulations.