At NTI, we believe everyone deserves accessible, affordable, and gold-standard autism assessments that adhere to the NICE Guidelines.

Our Full Autism Diagnostic Assessments are run with our Trusted Partners to provide clarity, insight, and a pathway to support. Say goodbye to endless waiting lists and excessive fees. With our trusted team of UK-based HCPC registered Clinical Psychologists, who are esteemed members of the British Psychology Society (BPS) and recognised by the NHS, you can trust that your diagnosis will be conducted with the highest level of expertise and care.

It’s time to open the door to a better future for you or your loved one.

Here’s what NTI’s autism diagnostic assessment service includes


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Full Autism Diagnosis – Our trusted partners all have teams of experienced clinical psychologists who will conduct a thorough assessment, meticulously examining behaviours, experiences, and challenges. With their expert analysis, you’ll receive a comprehensive autism diagnosis that forms the basis for understanding and support.

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Detailed Report for Enhanced Support – Gain access to a comprehensive report that goes beyond the diagnosis itself. This valuable resource provides detailed insights and recommendations for schools, workplaces, and healthcare providers, ensuring that everyone involved has the information they need to create a supportive environment.

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Post-Diagnosis Online Session – We believe that ongoing support is vital after an autism diagnosis. That’s why our partners all offer a dedicated online session with a member of their team. This session allows you to ask questions, seek guidance, and gain a deeper understanding of the next steps on your journey.

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The Urgency of Obtaining a Diagnostic – We understand the urgency of obtaining a diagnostic and the impact it can have on your life. That’s why we strive to streamline the process. After booking, expect to receive an email from our partner clinic to initiate the onboarding process. From there, the dedicated team will schedule your diagnostic interview and work diligently to complete the assessment as soon as possible, dependent on the timely submission of supporting information.

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Flexibility With Our Payment Options – Finances should never be a barrier to understanding, hence flexibility is offered with the payment options, including the ability to pay in convenient instalments. Our mission is to make high-quality autism assessments accessible to all individuals and families, regardless of their financial circumstances.

Our Trusted Partners

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So Why Choose RTN?

 RTN - working with communities and corporates, to ensure individuals can achieve better mental health outcomes, without spending thousands or languishing on waiting lists.

In the UK, waiting times for diagnoses can be as long as two years. Private assessments are often financially inaccessible and can have complex pricing structures. RTN provides an affordable and speedy assessment process to ensure Neurodivergent people and their networks can receive the right support.

The RTN Promise

  •  A full diagnostic assessment by a Chartered Clinical Psychologist
  •  To provide you with a detailed report that you can share with schools, GPs, employers or any other relevant parties
  •  To complete your assessment within 6 weeks of booking
  •  A mental health assessment by a registered Psychotherapist.
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The RTN Team

RTN Autism Diagnosis Worker

Dr Ann Steele

Clinical Psychologist, BSc Hons (First Class) 
MSc Oxon, DPhil Oxon, DClinPsy

Ann is a Clinical Psychologist with over 10 years of experience working in the NHS and in independent practice. Ann also provides teaching and supervision to other mental health professionals training within the NHS.

RTN Autism Diagnosis Worker

Dr Charmain Round

Clinical Psychologist, DClinPsy
PsychD; PhD; CPsychol; AFBPsS

A Chartered Clinical Psychologist with over 25 years’ experience working in the NHS providing assessment, therapy, training, support and consultation to neurodiverse adults and children, their families, support networks and other professionals. 

RTN Autism Diagnosis Worker

Dr Renata Fialho

Clinical Psychologist, Masters, PhD
PsychD; PhD; CPsychol; AFBPsS

Dr Renata Fialho works in an NHS specialist service at the general hospital, having developed extensive experience with Post covid syndrome, depression, anxiety, emotional difficulties associated with chronic illness, physical persistent symptoms, and Functional Neurological Disorders.

Book Your Diagnosis With RTN

Autism Diagnosis for Adults

£115 Booking Deposit 

The list price is ÂŁ995 so once you have paid the deposit at checkout, the remaining balance will be ÂŁ880. This balance is payable to RTN and can be paid in 3 x instalments.

An Adult is defined as anyone over the age of 18

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Autism Diagnosis for Children*

£125 Booking Deposit 

The list price is £1,250 so once you have paid the deposit at checkout, the remaining balance will be £1,125. This balance is payable to RTN and can be paid in 3 x instalments.

 * A child is defined as someone under the age of 18

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Endorsed and supported by NTI

"On a daily basis, I hear of parents, families, and adults, looking for fast and financially accessible autism diagnoses. Now RTN are providing a quick assessment, at an affordable rate, completed to the highest standards. RTN is what has been needed for so long, and will help so many. A lovely team, good people, and a heart-led firm. Very highly recommended". 

Jude Morrow, CEO and Founder of NTI

Frequently Asked Questions

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Need Help Before Deciding On The Right Diagnostic Option For You?

Click HERE to book a free 15 minute screening call with NTI. Telephone and video call options available.