Meet Our Team
Chief Clinical Officer
Jennifer Agganis, EdD, BCBA
Jennifer Agganis is a leader in the field of behavior analysis and in the treatment for individuals on the autism spectrum and related disabilities demonstrated through her various leadership and community service positions she has held across organizations.
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Jennifer graduated from Simmons College in Massachusetts in Behavioral Education and obtained her Board Certified Behavior Analyst certification in 2003, followed by her Doctorate Degree in Education from Florida Atlantic University in 2018.
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She has been working with individuals diagnosed with autism spectrum disorders of all ages since 1999 with a focus on improving quality of life by decreasing challenging behaviors, increasing pro-social behaviors and empowering all stakeholders.
Jennifer is also a wife and mother who enjoys spending time outdoors and serving her community.
Regional Director for Palm Beach County
Arielle Stuhmer, BCBA
Arielle Stuhmer is a Board-Certified Behavior Analyst (BCBA) with over 19 years of experience supporting children with Autism and their families. Originally from New York, Arielle discovered her passion for working with young children during a child psychology class in high school. She earned her undergraduate degree in Psychology from Connecticut College before gaining her Master of Science in Applied Behavior Analysis from Western New England College. Arielle began her professional career in Massachusetts, where she worked extensively with children and families before relocating to Florida in 2019.
Arielle specializes in early intervention and facilitating successful school transitions. She is passionate about creating individualized goals that empower children to achieve meaningful progress, and collaborating with families to equip them with the tools and confidence to support their child’s growth.
Center Director - Stuart
Brigitte Christensen, M.A., BCBA
Brigitte has extensive experience in education and applied behavior analysis, and has dedicated her career to supporting individuals and families across a variety of settings, including early intervention, group homes, school, and family guidance. Her professional journey started in 2007, driven by a deep commitment to helping each learner achieve meaningful growth and independence through compassionate, evidence-based practices.
She believes in the importance of collaboration, empowering families with the knowledge and strategies to promote success beyond the clinical setting. Her background provides a comprehensive understanding of behavioral development across the lifespan, allowing her to tailor supports that make a lasting impact.
Outside of her professional work, she is a proud mother who enjoys spending time outdoors—most often on her paddleboard exploring Florida’s waterways in search of manatees and other sea life.
Client Intake Coordinator & Billing Manager
Kristen Holmes
Kristen has been a dedicated employee of ABAFoundations for over eight years, serving as both the Client Intake Coordinator and Billing Manager. In her role, she works closely with families from their very first point of contact, guiding them through the intake process and helping them navigate insurance and billing with clarity and confidence. Kristen is passionate about making what can feel like an overwhelming process smooth, supportive, and reassuring for each family she connects with.
Her passion for ABA is deeply personal. Kristen’s oldest son was diagnosed with autism at the age of two and began ABA therapy shortly after. Watching his tremendous growth and progress firsthand has given her a unique perspective and a deep appreciation for the life-changing impact ABA services can have. She sees the benefits of ABA every day — not only professionally, but personally.
Kristen truly enjoys speaking with families, helping them access resources, and supporting them as they take important steps toward services for their child. She understands the emotions that can come with a diagnosis and strives to provide compassion, guidance, and encouragement throughout the process.
Outside of work, Kristen enjoys spending quality time with her family. She enjoys traveling to their home in Georgia whenever the kids are on school breaks, making special memories together. In her spare time, she loves connecting with friends, shopping and simply relaxing and recharging.
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