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Meet our wonderful staff. They are ABA trained professionals, Both BCBA's and RBT's

A qualified and trained behavior analyst (BCBA) designs and directly oversees the program. They customize the ABA program to each learner's skills, needs, interests, preferences and family situation. 

Applied Behavior Analysis involves many techniques for understanding and changing behavior. ABA is a flexible treatment:  

  • Can be adapted to meet the needs of each unique person

  • Provided in many different locations – at home, at school, and in the community

  • Teaches skills that are useful in everyday life

ABA therapy programs also involve therapists, or registered behavior technicians (RBTs). These therapists are trained and supervised by the BCBA. They work directly with children and adults with autism to practice skills and work toward the individual goals written by the BCBA. 

Our Team

Mark Willer


Mark has been working with learner’s of all abilities for the last 10 years.  Mark graduated with a Master’s Degree in Special Education and received a Certificate in Applied Behavior Analysis (ABA) from George Mason University and finishing his Doctorate of Philosophy from George Mason’s College of Education.  Mark works as a Board Certified Behavior Analyst (BCBA) for Building Bridges Therapeutic Services (BBTS), the company he founded.  At BBTS, he provides instruction and strategies for learners with ASD and their caregivers in the home, school, and daycare environments.  In addition, Mark enjoys attending conferences, seminars, and continuing his educational journey in the field of ABA.  If there is ever any additional free time, he enjoys hiking, camping, listening to music, and, most importantly, spending time with his family and friends.

Alison Quick


Hello, Miss.Allie has been working with children for many years and recently got her RBT certification. She is currently almost done with her associates degree from Northern Virginia Community College. After She graduates she is planning on transferring and getting her bachelors in Education, specifically focusing on Special Education. Allie helped Mark in setting up BBTS, where she provides RBT services. An RBT is a Registered Behavior Technician. A RBT practices under the supervision of a certified therapist, such as a BCBA. The BCBA will provide assessments of children and create treatment plans, and the RBT will provide direct  ABA therapy to clients. When not working Allie likes to watch movies, listen to music and hanging out with her bunny. 

Our Offerings

In-home therapy 

Community therapy

Social groups

parent training


Our Mission
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