Angie joined the ATKG team as a partner in 2017.

In addition to her CPA credentials, she is also accredited in business valuations (ABV). Angie has a diverse professional background ranging from assurance services in public accounting to holding the CFO position for a wealth management company. She spent five years at Mangum Schieffer, Bradley & Co. and helped build the litigation support practice prior to joining ATKG.

With a rich history in the accounting field and a degree in accounting from Abilene Christian University, Angie is a member of the AICPA and the State Bar of Texas – Family Law Section. She is also active in a variety of community and civic activities.

While Angie grew up in Corsicana, she can’t imagine living anywhere else besides San Antonio. Strong roots, however, don’t stop her from traveling as much as she can with her family. Angie and her husband, Byron, have 3 children. When Angie isn’t chasing around her two girls and teenage boy, she loves to hike, read and spend time with her family.

‘‘Angie Stone and Courtney Mastin are very responsive. A great team.’’

A Client

‘‘Angie Stone and her team provided valuable forensic accounting services and excellent litigation support in some complex family law cases handled by our firm.’’

Alicia K.

Key Law Firm

‘‘Angie Stone and Courtney Mastin are prompt in their response to any inquiry our clients or I may have. Additionally, everyone at ATKG maintains a wonderful level of professionalism.’’

A Client

‘‘She is friendly, responsive, and knowledgeable.’’

A Client

‘‘Angie, Ruth, and Courtney have worked days, nights, and weekends to be ready for hearings, trials, and mediation.’’

A Client

‘‘ATKG follows up even when the case is over. They always go above and beyond.’’

A Client

CliftonStrengths® Signature Themes
(Top 5)

To learn more about how CliftonStrengths® is at the core of our culture and leadership development click here.


Angie works hard and possesses a great deal of stamina. She takes immense satisfaction in being busy and productive.


Angie is best described by the serious care she takes in making decisions or choices. She anticipates obstacles.


Angie has a great desire to learn and wants to continuously improve. The process of learning excites her.


Angie is intrigued with the unique qualities of each person. She has a gift for figuring out how different people can work together productively.


Angie has faith in the links among all things. She believes there are few coincidences and that almost every event has meaning.
Notable Accomplishments & Affiliations
  • American Institute of Certified Public Accountants, Member
  • State Bar of Texas Family Law Section, Member
  • Texas Society of Certified Public Accountants, Member