CASE STUDY:
Over £200,000 in revenue. A healthcare brand built from zero
The Autism and ADHD Diagnostic Centre is a private assessment service in Glasgow. It came to us with a clinical service, a brand new website, and no way to generate enquiries. Fifteen months later it had a marketing engine running at over half a million pounds annualised.
The Challenge
Company background
The Autism and ADHD Diagnostic Centre provides private diagnostic assessments for ADHD and autism in adults and children. It was founded by Dr Sudi, a practising psychiatrist, to offer an alternative pathway for patients facing long NHS waiting lists.
The market
NHS waiting lists for adult ADHD assessment in Scotland average two to five years. A private adult assessment is a high-intent, high-value purchase. Search demand for private ADHD assessment has grown more than 200 percent in three years. Glasgow and Edinburgh already had several established competitors.
The starting position
Zero keyword rankings. The site was indexed but ranking for nothing commercial. No paid search. No lead capture beyond a basic contact form. No social presence. No CRM and no follow-up. Competitors held the highest-intent search terms.
The Strategy
We built a complete marketing programme across five integrated layers, with AI embedded at every level from day one.
Foundational SEO
Full technical audit and rebuild. Keyword strategy mapped across Glasgow, Edinburgh, Aberdeen and Dundee. On-page work on every service page. Authority building through medical content and citations. Continuous condition guides, patient pathway explainers and FAQ content.
AI-powered conversion
An AI chatbot on every key page to handle out-of-hours enquiries and qualify leads. WhatsApp and ManyChat nurture flows. AI voice calling prepared for outbound. Conversion rate testing across booking and landing pages.
Paid search
A Google Ads structure built from scratch, organised by service, location and intent, with negative keyword management to filter out medication-only and non-commercial searches.
Social and awareness
Brand presence built from zero across Facebook, Instagram, LinkedIn and TikTok, with daily clinical education and patient stories.
CRM, data and reporting
HubSpot implemented with a deal pipeline, source attribution and automated workflows. Every enquiry tagged from first touch to closed sale.
The Results
ifteen months. Starting from zero on every metric.
£ 0
Attributed revenue
Every penny tracked from first touch to closed sale, against £37,500 in marketing fees. A six to one return.
0
Leads delivered
From zero in January 2025 to over 100 leads a month from August onwards.
0
Sales closed
Paying clients converted from inbound marketing, with the engine compounding from August.
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Keywords in Google AI Overview
Out of 516 keywords ranking, with 54 at position one. Position one in AI Overview for terms like undiagnosed autism in adults.
The AI advantage
Most agencies talk about AI. We built it into every layer from day one.
The chatbot was the highest-converting channel in the business
226 leads captured by the AI chatbot across 15 months. 56 sales closed at a 20.7 percent close rate, the highest of any channel. £74,050 in revenue, more than every paid channel combined. It runs 24/7 and captures the enquiries that come in late at night when patients research private care.
Winning the new search frontier
39 keywords now appear in Google’s AI Overview, the AI summary that sits above the blue links. We earned this through structured content, semantic markup and authority building designed to feed Google’s generative system. Most agencies still optimise only for traditional results.
Appearing inside AI conversations
17 leads have come directly from ChatGPT and Microsoft Copilot since September 2025, growing month on month. AADC is one of the few private healthcare providers in the UK appearing as a recommended option inside ChatGPT.
What we learned
Social media is awareness, not direct conversion. Paid social produced 287 leads and no attributed revenue over 15 months. Its value showed up as higher organic search volume and brand-name queries, not as closed sales. That is true across the sector.
Marketing alone does not close sales. A high-performing engine needs an equally strong sales operation behind it. We measure success by attributable revenue, not lead volume. Agencies that ignore the sales side do their clients a disservice.
Top-of-funnel filtering matters. Better landing page filters and clearer chatbot expectation-setting would lift the effective close rate by removing medication-only and wrong-service enquiries before they enter the pipeline.
The bottom line
Over £200,000 of revenue from £37,500 of marketing fees, in 15 months, for a brand starting from zero, with AI embedded at every layer. That is what a modern marketing programme delivers when it is built properly.
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