Mary Claire Walther



Mary Claire’s positivity, warmth and heart for mission is only matched by her relentless commitment to help her clients achieve their goals. Since joining Dini Spheris, Mary Claire has served dozens of nonprofits throughout Texas and across the country. She is a seasoned consultant, successfully helping clients grow their annual, capital and major gift fundraising and managing campaigns with goals ranging from $1 million to $250 million.

As a coach and counselor, Mary Claire focuses first on building a strong, confident team of volunteers and staff. Her goal is always to maximize her client’s strengths, to build the right, tailored strategy for every setting, and to create an enduring partnership based in trust. Nothing brings her more joy than walking hand in hand with organizations in the midst of transformation, boldly facing challenges and celebrations alongside her clients.

Mary Claire holds a BA from the University of Chicago. She is an active member of the AFP Greater Houston Chapter and regularly presents at conferences throughout the United States. Mary Claire also deeply enjoys mentoring the next generation of sector leaders as a lead instructor with the University of Houston Nonprofit Leadership Alliance.

Reports & Insights


SIRE is dedicated to helping people with special needs through therapeutic horsemanship activities and therapies and educational outreach. Since its founding in 1983, SIRE has…
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Conway Regional Health System

Conway Regional Health System (Conway Regional) has served patients in Central Arkansas for more than 100 years. To meet the healthcare needs of the growing communities,…
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The Bridge Over Troubled Waters

The Bridge Over Troubled Waters (TBOTW)is dedicated to providing services to victims of domestic violence; it is one of the largest facilities in Texas by the…
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