Evidence-Based Support for Families & Schools

Empowering Positive Change Through Evidence-Based Practice

Compassionate, collaborative and ethical behavioural consultancy across Berkshire and South East England.

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A family working together with a behaviour consultant
Board Certified Behaviour Analyst (BCBA)
UK Society for Behaviour Analysis – UKBA(cert)
Collaborative, Ethical & Compassionate Practice
Home, School & Community Settings
Leticia Costa Tomsik, Behaviour Analyst & Consultant
BCBA UKBA(cert)

Meet Your Consultant

Leticia Costa Tomsik

Behaviour Analyst & Consultant

"Empowering positive change through evidence-based practice."

As a Board Certified Behavior Analyst (BCBA) and a member of the UK Society for Behaviour Analysis – UKBA(cert), Leticia brings a wealth of experience to her work with families and schools.

Her Applied Behavior Analysis (ABA) career began as a tutor, working directly with individuals in school and home environments. This hands-on experience ignited her passion for the field and inspired her to pursue a career as a consultant.

Leticia works within a local authority, collaborating closely with social workers and therapists to provide holistic support to families navigating various challenges. She is committed to providing compassionate, collaborative, and ethical services.

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What We Offer

Specialist Behavioural Consultancy

Tailored, evidence-based support that makes a real difference for children, families, and the professionals who work with them.

Home-Based Support

Working directly with families in their home environment to develop practical strategies that promote positive behaviour and improve daily routines.

School Consultation

Collaborating with educators and teaching assistants to design and implement effective behaviour support plans tailored to each child's needs.

Family Coaching & Training

Empowering parents and carers with knowledge, skills, and confidence through structured coaching and ABA-based training programmes.

Behaviour Assessment

Comprehensive functional behaviour assessments to understand the root causes of challenging behaviour and develop informed, effective intervention plans.

Multi-Agency Collaboration

Working alongside social workers, therapists, and local authority professionals to deliver holistic, joined-up support for families with complex needs.

Skill Building & Development

Designing structured skill-building programmes to help children develop communication, social, and independent living skills using evidence-based ABA strategies.

Our Approach

Why Applied Behaviour Analysis?

Applied Behaviour Analysis (ABA) is one of the most thoroughly researched and evidence-based approaches to understanding and changing behaviour. It focuses on observable, measurable behaviours and uses scientifically proven techniques to bring about meaningful, positive, and lasting change.

  • Grounded in decades of scientific research
  • Individualised to each child's unique needs
  • Focuses on meaningful, lasting outcomes
  • Positive, compassionate and ethical framework
  • Involves family, school and wider community

Where We Work

Serving Berkshire & South East England

We provide in-person support across a wide area, bringing expert behavioural consultancy directly to your home, school, or community.

  • Bracknell
  • Wokingham
  • Crowthorne
  • Owlsmoor
  • Finchampstead
  • Maidenhead
  • Windsor
  • Ascot
  • Sunningdale
  • Bagshot
  • Camberley
  • Farnborough
  • Frimley
  • Aldershot

Not sure if we cover your area? Get in touch – we'd love to help.

Let's Talk

Get in Touch

Whether you have a question, want to understand how we can help, or are ready to book a free initial consultation – we'd love to hear from you.

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