At ABA Works, our mission is to empower individuals from infancy through adulthood by enhancing quality of life through compassionate, ethical, and individualized care.
We believe effective support should grow with the individual. What a toddler needs looks different from what a teenager or adult needs, and our approach adapts accordingly. Our work is grounded in evidence-based practices while remaining flexible, compassionate, and deeply individualized.
Guided by our commitment to accessibility and individualized care, ABA Works delivers services throughout Los Angeles, the South Bay, Long Beach, Lakewood, Norwalk, and Orange County.
Our main office is located at 25042 Narbonne Ave , Lomita, CA, 90717
This is how it all started. The story from one of the founders, Lilyan W.J. Campbell, LMFT, BCBA.
“Passion for seeing the children and parents grow is what makes this work so exciting and rewarding!”
While practicing as a clinician in Europe, I would come across children who were emotionally and behaviorally challenged, often diagnosed with ADHD, Autism Spectrum Disorder, or related disorders. They were unable to communicate with others and felt misunderstood. They felt singled out – different from other children. I felt challenged because I did not have enough tools to reach them.
In 2005, I moved to the United States where I was introduced to Applied Behavioral Analysis (ABA). I became inspired to make this my life’s work as a result of applying ABA techniques while working as a Behavior Therapist with a four-year-old boy:
I would spend at least three hours per day, five days per week with this little boy and his mother. He was non-verbal and very non-compliant, with constant tantrums and aggressive behaviors. He mainly spent his days watching TV. When we started our work together, I tried to build a relationship with him by engaging in play, but he would walk away from me, eat, and watch TV. As sessions continued, I applied a variety of antecedent and consequence strategies, which involved reinforcing his positive actions when he would approach me, providing very short instructions with consecutive praise, blocking him from hurting both me and himself, and walking away when necessary.
Initially, his tantrums increased and worsened (which is called the extinction burst.) At first, he would occasionally hit, scream, and cry. When that did not elicit a response from me, his behaviors escalated – he would kick me, put his fist in his mouth until he would gag (while looking at me), and cry with lots of tears. His mother watched agonizingly every day. Changing his behavior seemed too painful – as when one begins any new discipline – but she trusted me that we were moving in the right direction.
And then it happened! One day, after about three or four weeks, this little boy realized that his tantrums were not working – they were not gaining his escape from a non-preferred instruction. From that day, things began to change. He would sit with me at the table to play board games and take turns. He responded to visual stimuli (such as showing cards of animals) and began to identify them. He vocalized more and more, and also made eye contact for longer periods of time, waiting for access to preferred items, etc. He began to dress, brush his hair, and walk alongside his parents while they would take walks together. Furthermore, he became intrigued by the environment I was pointing out, such as the different colors of leaves, and the ants that were walking in a trail. His world opened up. His mother continued to watch the process and smiled more and more. She participated in the parent training I provided her to further his progress.
After about 2 years of services, this little boy – who had been entirely non-verbal and non-compliant – was able to attend regular school, needing only speech therapy to improve his articulation. A victory based upon the principles of ABA!
Shortly after I completed my work with the kiddo and his mother, I began working as a clinical supervisor and collected my hours toward my Marriage and Family Therapist license. Inspired to learn more about using behavior strategies, I took more classes in ABA and soon sat for my exam to become a BCBA. In the meantime, I was promoted to the position of clinical director and was able to oversee work on a macro level. Also, I gained more experience working with a variety of local and national companies.
I then decided to spread my wings and do what I always wanted to do: Integrate my knowledge and use my inspiration to set up an agency that would incorporate everything I had learned that really works to make a difference with clients.
ABA Works started soon thereafter (in 2014) and has grown rapidly. Our vision is clear: Passionate staff who will help individuals grow to their fullest capacity.
The success of our company comes from our shared passion and our team who want to continue to learn and grow. Our supervisors are leaders and are knowledgeable about the latest research. Our team understands that our clients need their commitment and consistency.
One aspect that distinguishes ABA Works from other agencies is the level of parent training we provide. Parent training is an integral part of every client session. The goal of this is for the parent to also be able to work with their own children and continue this important work between sessions. This promotes more independence and success for the families.
We also use technology to help our staff be more efficient. We integrate knowledge from occupational therapy by using sensory items and input to help the client be more balanced and receptive to learning. We observe speech therapy sessions and classrooms, so we can integrate learning in our sessions. Likewise, we inform families about additional resources they can utilize when we see they are struggling with issues beyond our scope.
ABA Works is a leader in ABA services and works internationally. We train people worldwide in ABA, so families can become independent and self-sufficient, and learning will continue.
You can read more about our services, in the ‘Services’ tab.
We are happy to know you are happy
Executive Director/CE
Lilyan is the co-founder of ABA Works, a licensed MFT, and a BCBA with over 20 years experience across Europe & the US. She presents at leading professional conferences, including CalABA/ABAI, on ethical practice, global perspectives, and interdisciplinary care. Lilyan is also a practicing psychotherapist, and the developer of multiple professional training courses. Through ABA Courses, the sister company to ABA Works, she supports international communities. She is the developer of a social skills curriculum for the QT Robot, integrating technology with evidence-based social learning strategies. She is also a mother of 2 boys. As a leader, Lilyan oversees and manages the ABA Works team, fostering collaboration, clinical excellence, and sustainable growth.
(888) 286-8715 ext 1
lilyan@aba-works.com
BCBA Clinical Coordinator
Tosha earned her Master’s degree in Marriage and Family Therapy from California State University, Fullerton. She completed graduate-level coursework in Applied Behavior Analysis through the University of North Texas after being introduced to ABA while working as a behavior therapist during her master’s program. She became a Board Certified Behavior Analyst (BCBA) in 2007 and has served the special needs community for the past 18 years in a variety of roles, including BT, Lead BT, Supervisor, and Director, while also being a mother of twins with special needs. She has provided services across home, school, clinic, and telehealth settings, bringing a comprehensive and adaptable approach to care.
(888) 286-8715 ext 6
coordinator@aba-works.com
Regional Manager
Tiffany Goss is the Regional Manager at ABA Works and has been a dedicated member of the ABA Works team since 2015. She brings a strong healthcare background, with certifications as both a CNA and Medical Assistant, which informs her thoughtful, client-centered approach to leadership. In her role, Tiffany oversees regional operations, supports clinical teams, and ensures high-quality service delivery across programs. She is deeply committed to fostering collaboration, consistency, and compassionate care for both clients and staff. Tiffany is known for her hands-on leadership style and her dedication to upholding ABA Works’ values of ethical practice, professionalism, and family partnership.
(888) 286-8715 ext 3
tiffany@aba-works.com
Our dedicated and continuously growing team of (BCBA) Supervisors develops individualized, evidence-based treatment plans tailored to each child’s unique strengths, needs, and goals. Our Behavior Analysts provide ongoing clinical oversight, ensuring that programs remain effective, ethical, and responsive as your child grows and progresses.
Working closely under Behavior Analyst guidance, our Registered Behavior Technicians (RBTs) and Behavior Technicians consistently and thoughtfully implement treatment goals during each session. Through collaboration, training, and regular supervision, we ensure high-quality service delivery that supports meaningful skill development.
Together, our team is committed to helping your child build independence, confidence, and lifelong skills—so they can truly thrive across home, school, and community settings.
