Meet our ABA Consultancy Team at All Behaviour Consultancy
Meet our London Team of Board-Certified ABA Consultants
All Behaviour Consultancy: Guiding Brighter Futures Since 2011
Founded by Georgiana Koyama MSc, UKBA(cert), BCBA, and IBAO, All Behaviour Consultancy is a London-based team of Board-Certified ABA Behaviour Consultants with over 23 years of collective experience supporting Autistic and SEN children and young adults.
We’re a dedicated, tight-knit team driven by compassion and backed by science, offering online support and at home/school in London.
Our approach blends evidence-based therapy with a strong educational foundation, helping each child grow in confidence, communication, and independence.
Every milestone reached is a testament to the power of personalised ABA support and the potential in every child. We’re here to walk alongside families and schools on their journey, empowering young people to thrive in their own unique ways.
Together, we build brighter futures - one breakthrough at a time.
About All Behaviour Consultancy
Our Behaviour Consultancy is a long-established company focused on empowering schools & parents to help each individual SEN child shine using Positive Behaviour Support.
Children with Autism, ADHD, Global Development Delay and other Learning/Behaviour Difficulties usually require extra support, and with the right support, we can work towards a bright future.
We use Positive Behaviour Support and School-Wide PBS within a ABA framework.
These are evidence-based behavioural systems to create effective teaching and learning systems of support for all children. This is achieved through reducing challenging or harmful behaviours, whilst increasing positive behaviours.
Most importantly of all, it is the child’s inner well-being and peace that lays the foundation of our Behaviour Support.
Meet a few members of our ABA Consultant Team
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Georgiana Koyama - BCBA, MSc, UKBA(cert)
With a journey spanning over 20 years, Georgiana's commitment has been dedicated to assisting individuals with various developmental or learning differences; particularly Autistic Spectrum Conditions. Throughout her career, she has empowered both adults and children, catalysing transformative shifts in behaviour and learning for individuals navigating diverse challenges. She brings innovation to schools, collaborating with educators in some of England's leading State and Independent schools to embed school-wide positive behaviour support principles that pave the path to success.
Beyond her role as a clinician, Georgiana is a passionate supervisor and mentor, renowned for guiding aspiring professionals and nurturing the growth of her team members. As an employer, she fosters an environment of excellence, blending compassion with expertise to foster personal and professional development.
Georgiana's influence also extends to championing Diversity, Equity, and Inclusion (DEI) principles. Georgiana is a Board, Advisory and Trustee member of a number of international organisations.
She firmly believes in equal access to ABA, her tireless efforts mirror this commitment.
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Galina Papageorgiou - Behaviour Analyst (BCBA)
Galina's journey has been marked by her dedication to empowering children with diverse diagnoses, including Autism, ADHD, Learning Disabilities, and Mental Health challenges. Her rich experience spans mainstream and Special Education Needs schools, as well as in-home therapy services. A child-centred and ethical approach underscores every aspect of Galina's practice, exemplifying her commitment to fostering the well-being and progress of her young clients.
Her academic achievements further attest to her dedication. Galina earned her Masters's degree in Applied Behavior Analysis from the University of Kent, a Bachelors's in Education from UCL Institute of Education, and a Foundation Degree in Psychology for Education Professionals from Birkbeck College, the University of London. These accomplishments highlight her comprehensive understanding of the intricate nuances of behavioural sciences.
Her expertise, combined with her unwavering empathy, ensures that those under her care receive not only evidence-based interventions but also compassionate guidance throughout their journey.
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Stephanie Parker -Trainee Behaviour Analyst
Stephanie's journey started as an ABA tutor in a Special Educational Needs school in North London. This foundation propelled her to delve into home-based programs and mainstream schools, where her skill set fostered growth across diverse diagnoses, abilities, strengths, and personalities. Her true passion lies in cultivating engagement and inclusivity within educational and communal settings.
Her professional expertise extends to specialised domains, encompassing Augmentative and Alternative Communication (AAC), the Picture Exchange Communication System (PECS), and a Level 2 certification in Makaton.
With an academic grounding that includes a BA in Experimental Psychology from the University of Oxford, specializing in 'Mood and Anxiety Disorders,' Stephanie pursued a Masters in Applied Behavior Analysis at the University of Kent's Tizard Centre, graduating with distinction in 2021. Her unwavering pursuit of excellence is evident in her ongoing journey toward securing a BCBA certification.
Introducing our Founder, Board-Certified Behaviour Consultant & ABA Therapy Expert
Meet our founder, Georgiana Koyama, who is a well-known Board-Certified Behaviour Analyst (MSc, BCBA, UKBA(cert), IBAO) Founder of All Behaviour Consultancy specialising in working with London schools and for parents at home within the UK.
She has been training, supporting and advocating for kids with ASD (Autism Spectrum Disorder) and other Developmental or Learning Disabilities for over 23 years.
With an Honours in Psychology, a Masters’s degree in Behaviour Analysis (Distinction grade) and BACB accredited, Georgiana has worked with a wide range of adults and children with behavioural problems and learning disabilities.
Throughout her career, she has empowered both adults and children, catalysing transformative shifts in behaviour and providing life long skills for individuals navigating diverse challenges.
Georgiana is a member of the UK Society for Behaviour Analysis and the Applied Behaviour Analysis forum.
Beyond her role as a clinician, Georgiana is a passionate supervisor and mentor, renowned for guiding aspiring professionals and nurturing the growth of her team members. As an employer, she creates an environment of excellence, blending compassion with expertise for personal and professional development.
Georgiana's influence also extends to championing Diversity, Equity, and Inclusion (DEI) principles. Georgiana is a Board, Advisory and Trustee member of a number of international organisations. She firmly believes in equal access to ABA, and her tireless efforts mirror this commitment.
Autism & SEN Behaviour Consultants based in London, offering UK wide support.
At All Behaviour Consultancy, we deliver practical, personalised ABA therapy to support Autistic and SEN children at home, in schools across London, and through online sessions nationwide.
Our team of experienced ABA Consultants applies the principles of Applied Behaviour Analysis using Positive Behaviour Support (PBS) strategies proven to improve behaviour, communication, and daily living skills. We prioritise each child’s emotional well-being while helping them build the tools they need to succeed in the classroom and beyond.
Whether working one-on-one with families, collaborating with schools and LEAs, or supporting through local health authorities, our holistic approach ensures that every ABA plan is relevant, realistic, and results-driven.
We specialise in:
In-school ABA programmes tailored to SEN and mainstream environments
Online ABA therapy for flexible, accessible support
Parent and teacher training to promote consistent progress at home and in the classroom
Bespoke intervention plans for children with Autism and related developmental conditions
Our goal is clear: to give every child the opportunity to thrive by building confidence, independence, and meaningful life skills using ABA-based Behaviour support.
At All Behaviour Consultancy, our strength lies in the depth and diversity of our team.
With over 23 years of experience in the field of Autism, Learning disabilities, and Behavioural support, we bring together a trusted network of highly skilled professionals, including Board Certified Behaviour Analysts (BCBAs).
What sets us apart is our ability to build flexible, multidisciplinary teams tailored to the specific needs of each child and family.
Whether it’s early intervention, complex behavioural challenges, school transitions, or parent coaching, we carefully match the right expertise to every case - ensuring that support is always relevant, responsive, and rooted in best practice.
We don’t believe in cookie-cutter solutions. We believe in personalised care, delivered by passionate people who understand that real progress comes from connection, collaboration, and consistency.