See the whole you
Comprehensive Autism Assessment
Expert, multidisciplinary autism assessments for children, adolescents, and adults — delivered by clinicians who truly understand what it means to be neurodivergent.

Our ethos
Understanding you.
Because we are you.
Every clinician in our autism assessment team lives with neurodiversity themselves. We are not outside looking in — we are right there with you, with first-hand experience of what it means to think, feel, and experience the world differently.
This shapes everything about how we assess. We do not pathologise. We do not reduce you to a checklist. We see autism as a different way of being human — one that brings genuine strengths alongside real challenges — and our assessments reflect that.
Lived experience
Strengths-based
Non-pathologising
Neurodiversity-affirming
"When I finally had my own assessment, I understood what it felt like to sit in that chair — the vulnerability, the hope, the exhaustion of a lifetime of masking. That experience is in every assessment we conduct. We are not doing this to you. We are doing this with you."
— The ADHD Specialists Clinical Team
Our team
A truly multidisciplinary approach
Autism assessment is never one-dimensional — so neither is our team. Every assessment is multidisciplinary by design, regardless of which clinician leads it. All of our assessors are trained to the same high standard and bring complementary expertise.
Doctors
Advanced Nurse Practitioners
Speech & Language Therapists
Psychotherapists
All clinicians are Cognitive Analytic Therapy (CAT) informed
CAT is a relational, collaborative therapy that understands how patterns formed earlier in life shape how we think, feel, and relate to others. For autistic people — many of whom have spent years adapting themselves to fit a world not designed for them — the CAT framework offers a particularly powerful lens. Across our whole team, we use CAT language and thinking to understand and describe experience, from assessment through to any support that follows.
Every assessment is multidisciplinary
Whether your assessment is led by a doctor, an advanced nurse practitioner, or a speech and language therapist, it is always conducted within a multidisciplinary framework — with cross-professional input, shared formulation, and collective clinical review before any conclusion is reached.
Clinical standards
Gold-standard assessment tools
All of our clinicians are trained to a high standard in internationally recognised diagnostic instruments. Depending on the most appropriate tool for your situation, your assessment will use one or more of the following.
ADOS-2
The ADOS-2 is widely considered the gold standard observational assessment for autism. It is suitable for children, adolescents, and adults of all ages and abilities. It involves structured and semi-structured activities that allow the clinician to observe social communication, social interaction, imagination, and restricted/repetitive behaviours directly — in real time. All of our clinicians hold ADOS-2 training.
ADI-R
The ADI-R is a comprehensive, semi-structured clinical interview conducted with a parent, carer, or informant who knows you well. It explores early developmental history, communication, social interaction, and restricted and repetitive behaviours — providing crucial context from those who knew you as a child.
ACIA
Developed by Newcastle University and aligned to DSM-5 and ICD-11 criteria, the ACIA is a semi-structured interview designed for adolescents and adults aged 16 and over. It explores current functioning and developmental history through both a subject interview and, where available, an informant interview — capturing the full picture across childhood and adulthood.
The process
What your assessment involves
We have designed the process to be thorough without being overwhelming. Here is what to expect from start to finish.
Initial enquiry & eligibility
Get in touch and tell us a little about what has brought you here. We see children, adolescents, and adults. We will discuss whether a standalone autism assessment or a combined autism and ADHD assessment is most appropriate, and match you with the right clinician and tool.
No referral needed
All ages
Self-referral or parent/guardian referral
Pre-assessment questionnaires
Before your appointment, we send you a detailed pre-interview questionnaire to complete at home. If you have someone who knows you well — a parent, partner, or close friend — we may also ask them to complete a parallel questionnaire. Reading these thoroughly before the appointment means we can focus the interview on what matters most to you.
Completed at home
Informant option available
At your own pace
The assessment appointment
Your assessment is a structured clinical conversation — not an interrogation or a test you can pass or fail. We explore your current life, your history, and your experiences across education, relationships, work, sensory world, and social communication. We also screen for co-occurring conditions that commonly occur alongside autism, including anxiety, ADHD, depression, OCD, and sleep difficulties. Allow approximately 2–3 hours, which may be split across appointments if that works better for you.
Approx. 2–3 hours
Can split across sessions
In-person or remote
Informant interview (where applicable)
Where an informant is available and consented, a separate interview explores your early developmental history — speech, play, social development, schooling — which provides essential context for understanding childhood onset. This is particularly important for a robust diagnosis and can be conducted on the same day or separately.
With your consent
Parent, partner, or close friend
Flexible timing
Multidisciplinary formulation
Before any conclusion is shared, all findings are reviewed within a multidisciplinary framework. Your assessor brings the clinical evidence together with cross-professional input to reach a formulation that considers the whole picture — not just a score on a scale.
MDT review
DSM-5 & ICD-11 criteria
Holistic formulation
Feedback & diagnosis
We share the outcome with you clearly and compassionately — explaining the clinical reasoning, what we found, what it means for you personally, and what comes next. We discuss your strengths alongside any challenges identified, and we make sure you leave with a clear understanding of the findings.
Clear verbal feedback
Strengths acknowledged
Written report provided
Written report & onward support
You will receive a comprehensive written diagnostic report. We also discuss onward support — whether that is workplace or educational adjustments, therapy, support for co-occurring conditions, or signposting to autism-specific services and communities. The assessment is a beginning, not an end.
Full diagnostic report
Personalised recommendations
Ongoing support options
Combined assessment
Autism & ADHD together
Autism and ADHD frequently co-occur — research suggests that up to 50–70% of autistic people also have ADHD. If you are seeking clarity on both, we offer a combined assessment that explores both conditions within a single, integrated process.
Rather than two separate assessments bolted together, our combined pathway is designed from the outset to explore the interaction between ADHD and autism, the ways they can mask or amplify each other, and what a complete picture looks like for you specifically.
- Single integrated process — no need for two separate assessments
- Explores how ADHD and autism interact in your presentation
- Considers masking, co-occurring conditions, and differential diagnosis
- One comprehensive report covering both diagnoses
- Medication and management planning if ADHD is confirmed
- Aligned to DSM-5 and ICD-11 criteria throughout
Attention & regulation
Communication & sensory
Up to 50–70% of autistic people also have ADHD. A combined assessment ensures nothing is missed — and nothing is over-attributed.
Already have an ADHD diagnosis?
If you have been assessed for ADHD by us or elsewhere and are now seeking an autism assessment, we can build on existing information to avoid unnecessary repetition while ensuring a thorough and independent autism assessment.
Who we see
Is this assessment right for you?
Our autism assessments are open to children, adolescents, and adults. All of our clinicians are trained in the ADOS-2, which is suitable for all ages. You do not need a GP referral — you can refer yourself or your child.
Adults seeking a first assessment
Children
Adolescents
Women & girls
Late-identified adults
People with an existing ADHD diagnosis
Professionals & high-maskers
Our fees
Transparent pricing
All assessments are multidisciplinary, conducted by clinicians trained to the highest standard. No hidden costs — the fee covers your pre-assessment questionnaires, the full assessment, MDT formulation, verbal feedback, and your written report.
Autism Assessment
Adults & Adolescents- Pre-assessment questionnaires
- Full clinical interview (ACIA / ADOS-2)
- Informant interview (where applicable)
- MDT formulation & feedback
- Full written diagnostic report
Combined Autism & ADHD
Adults & Adolescents- Everything in autism assessment
- Integrated ADHD assessment
- Explores ADHD/autism interaction
- Medication planning (if ADHD confirmed)
- Single combined report
Autism Assessment
Children- ADOS-2 observational assessment
- ADI-R parent/guardian interview
- Age-appropriate approach throughout
- MDT formulation & family feedback
- Full written diagnostic report
Combined Autism & ADHD
Children- Everything in child autism assessment
- Integrated ADHD assessment
- Explores ADHD/autism interaction
- School/education recommendations
- Single combined report
Making it manageable
Split your payment — no interest, no third parties
We offer a simple two-part payment plan on all assessments. Pay 50% when you book to secure your appointment, and the remaining 50% on the day of your assessment. No finance companies, no credit checks, no interest — just a straightforward way to spread the cost.
After your diagnosis
The assessment is a beginning, not an end
A diagnosis without support is just a label. We offer a range of post-diagnostic interventions — delivered by the same clinicians who assessed you — so that understanding your autism leads somewhere meaningful.
Post-Diagnostic Counselling
CAT-Informed Therapy
Burnout Recovery & Masking Support
Anxiety & Adapted CBT
Family & Systemic Therapy
Social Communication Support
Neurodiverse Couples & Relationships
Workplace & Education Support
Psychoeducation
Not sure what you need?
That is completely normal — especially in the weeks after a diagnosis. Get in touch and we will have an honest conversation about what might be most useful for you right now. There is no obligation to commit to anything, and no pressure to take any particular path.
Common questions
Things people often ask
Do I need a GP referral?
No. You can refer yourself directly. If you have relevant information from your GP or previous assessments, please bring it along — it can be helpful context — but it is not required.
Is the assessment available online or in-person?
We offer both in-person and remote assessments. Many clients find a combination works well — for example, completing questionnaires remotely but attending part of the interview in person. We will discuss what works best for you.
Will the assessment be valid / accepted by employers and services?
Yes. Our assessments are conducted using internationally recognised diagnostic instruments (ADOS-2, ADI-R, ACIA), follow DSM-5 and ICD-11 criteria, and are completed by trained, qualified clinicians. Our diagnostic reports are accepted by employers, universities, local authorities, and other services.
What if I am already on an NHS waiting list?
You can proceed with a private assessment without affecting your NHS referral. Many of our clients have been waiting years on NHS lists and choose not to wait any longer. A private diagnosis is clinically valid and widely accepted.
I am not sure whether I am autistic. Should I still get in touch?
Yes, absolutely. Uncertainty is completely normal and is often exactly the reason people seek assessment. You do not need to be certain before getting in touch — that is what the assessment is for. We will explore your experiences openly and reach a conclusion based on the evidence, whatever that turns out to be.
What if the assessment concludes I am not autistic?
A negative outcome is still a valuable one. We will explain clearly what was found, why autism does not fit the clinical picture, and what else might better explain your experiences. We will always discuss onward options and never leave you without a clinical explanation and next steps.
Do you assess children?
Yes. All of our clinicians are trained in the ADOS-2 (Autism Diagnostic Observation Schedule), which is suitable for children of all ages. We adapt our approach to each child’s age, communication style, and needs — and parents or guardians are involved throughout the process. There is no lower age limit for our autism assessments.