About Us


Atkins & Grainger, PLLC began in January 2013 with the combination of Catherine A. Atkins, CPA and Mary K. Grainger, CPA. In January 2017, Bob Grainger, CPA joined the practice as a partner. Our firm provides accounting, tax and advisory services to corporations, small businesses and individuals throughout the Houston area in a variety of industries. Previously, in 1991, Cathy formed Catherine A. Atkins, P.C., a public accounting firm which maintains a specialty in providing services to the medical community. Her expertise in the medical community has continued to expand to medical practices located all over the Houston area.   

Cathy, Mary and Bob have over 100 years of combined experience in public accounting.   Mary's and Bob's addition to Cathy’s already established practice adds her expertise in the area of taxation and general accounting for high net worth individuals and their related businesses, family partnerships, trusts and estates and small businesses. Our combined services are tailored to meet the individual needs of our clients. This enables us to focus on a high level of personal attention and direct involvement with each client that is not available in larger firms. We are committed to the client’s total welfare and, to that end, we assist the client in making decisions that take into account their whole picture rather than just the tax consequences. Our clients have grown to trust us and to value the very personal attention they receive. Our approach includes partner involvement at all levels of the engagement.

As a firm of qualified individuals, we believe in maintaining a relationship with our clients and a commitment to quality services, provided timely and at reasonable costs. We work with numerous individuals, a variety of small businesses (including physicians and dentists), by offering the following services:  tax preparation, QuickBooks consulting, payroll assistance, compilations and accounting, practice management consulting, IRS problem resolution and audit assistance.

In addition, we do a large amount of Quickbooks consulting.  We have a QuickBooks ProAdvisor on staff who can not only assist with software implementation but is available for training and ongoing assistance with all areas of QuickBooks.  We work with all active versions of QuickBooks, and have experience with setting up and maintaining the various payroll options QuickBooks offers.  

Our clients deserve the very best and we strive to provide it.  We offer our clients dedication, personalized service, a responsive relationship and outstanding technical skills.  We believe in bringing value, not just compliance, to the table. 



"I can only thank Mary for always being ready to help me understand the many papers necessary to complete the information that is needed to file my income tax and to keep me up to date on my monetary obligations as they are due. She helped me through the many years at a prior firm and now at Atkins & Grainger. I look forward to many more years of our continued relationship."
Ms. Eleanor M. Hill

"I wasn't sure about handing over my tax and accounting obligations to someone else but I am very pleased that Mary Grainger was recommended to me and since she has come on board I realize what an excellent decision that was. Mary has helped me with an increasingly complex tax return, that not only included my salary but a number of oil and gas partnerships, personal real estate deals and LLC's finances. Mary and her team keep on top of all this in a calm, efficient and friendly way."
-Mr. Danny Rathan

“What sets Cathy apart from other accountants is not her technical expertise, it is her willingness to listen to you; you realize she really cares about you as both a person and as her client.”
-Dr. Ira L. Flax 

“Cathy is easy to work with and has always been extremely fair in her billing. I rely on her knowledge and expertise to help me manage the business side of my practice.”
-Dr. Raymond A. Kahn

“Catherine Atkins and her firm have been my personal and business accountant since 1989. Her attention to detail has been superb. Not only is she timely in getting the work done but she returns phone calls promptly. I could not function without her.”
-Dr. Martin R. Steiner

“Cathy is extremely well organized, efficient and timely in performing her accounting duties. She is pleasant to work with and we also consider her a friend. Her honesty and integrity compliment her efficiency and professionalism in all she does. We recommend her highly as we have done over these past 25 years.”
-Dr. Raymond A. Martin 

“I have been a client of Catherine Atkins, CPA, for over 24 years. During that time I have found her to be extremely knowledgeable and responsive. She really takes care of my husband and me in our personal accounting needs, as well as my business accounting. Her high integrity is reflected in her accurate, timely work. I am looking forward to many more years of being her client.”
-Dr. Margaret Waisman

“Cathy has been a great accountant, advisor and a good friend for more than 20 years.”
-Dr. S. R. Venkatesh

“Cathy is always easy to work with, and goes the “extra mile” for her clients. She has solved some difficult tax issues for me.”
-Dr. Keith Fiman

15333 JFK Blvd., Suite 210
Houston, TX 77032