About ACS

Autism Consultancy Services Ltd — bringing science into everyday practice for over 29 years.

About ACS

Who We Are

Autism Consultancy Services (ACS) Ltd is a specialist consultancy providing world-class Applied Behaviour Analysis (ABA) therapy, assessment, training, and supervision services to individuals with Autism Spectrum Disorder (ASD) and other developmental disabilities.

Our services are delivered both in-person and via TeleHealth, making expert ABA support accessible across the UK, Europe, Australia, the Middle East, and many other countries worldwide.

Meet Dr. Christos

Est. 2007Over 28 years of excellence

Our Core Values

What Drives Us

Every decision we make is guided by our commitment to science, compassion, and the individuals and families we serve.

Evidence-Based Practice

Every intervention is grounded in peer-reviewed research and proven behavioural science — ensuring the highest standard of care.

Individualised Care

No two individuals are the same. We tailor every programme to the unique strengths, needs, and goals of each person.

Family-Centred Approach

We work hand-in-hand with families, caregivers, and educators — because lasting change happens when everyone is involved.

International Standards

Our practice aligns with global regulatory frameworks, including BACB® and EABA® guidelines for behaviour analysis.

Ethical Excellence

We uphold the highest ethical standards in everything we do — prioritising dignity, respect, and the well-being of every individual.

Leadership

Meet Dr. Christos Nikopoulos

ACS is directed by Dr Christos Nikopoulos BCBA-D, GMBPsS, CSci, FHEA — former director of both the BACB® and EABA®, with more than 29 years of clinical and research excellence in autism and related developmental conditions.

His leadership ensures that every ACS programme meets the highest international standards of behaviour analysis, grounded in decades of hands-on clinical practice, academic teaching, and published research.

Full Biography

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Whether you're a family seeking support, a professional looking for training, or an organisation exploring partnership — we're here to help.