About Us

Cathy R. Sheffield, CAP®, CFRE, CSPG, FCEP


Cathy is the Founder and President of ThinkGiving.  She is a fundraising executive with 25-years experience, specializing in major gifts and gift planning in healthcare and higher education for organizations such as Baylor Scott & White Health, Texas Health Resources, Cook Children’s Health System, and Texas Christian University.  Cathy is also a Vice President with Thompson & Associates, a values-based estate planning firm based in Nashville, TN. 


Cathy serves as a member of the board of directors for the American Council on Charitable Gift Annuities, is a past board member and past-chair of the National Association of Charitable Gift Planners (CGP) and served as the 2015 Chair of the National Conference on Philanthropic Planning.  Cathy is a member of the American Institute for Philanthropic Studies faculty which administers the Certified Specialist in Planned Giving designation program. Cathy was honored by the Fort Worth Metro Chapter of the Association of Fundraising Professionals with The Ben Franklin Award for the Outstanding Professional Fundraising Executive. 

Cathy received her MBA from Texas Christian University and a Bachelor of Science from North Dakota State University. Cathy is a Certified Fundraising Executive (CFRE), Chartered Advisor in Philanthropy (CAP®), Certified Specialist in Planned Giving (CSPG), and a Fellow in Charitable Estate Planning (FCEP). 


Siouxsie Sheffield

Siouxsie joined ThinkGiving in 2017 and serves as the

 Chief Mascot and Morale Officer.  Siouxsie love parks, 

Charlee Bear dog treats, green beans & her pink Sock Monkey! 

Siouxsie is a graduate of the PetSmart puppy training academy.

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