Blog Series
Buyer Behaviour Analysis
How AI is reshaping the way professional services firms get found, evaluated and chosen.
93% of Buyers Using AI Search Never Click Anywhere. The 7% Who Do Convert at 2.4x the Rate.
TL;DR
AI Mode searches end without a click 93% of the time versus 34% for standard Google searches (Semrush, 2026), because buyers complete vendor evaluation inside the AI response itself. AI-cited brands convert at materially higher rates than non-cited competitors, yet only a minority of UK mid-market businesses have any GEO strategy. Standard analytics can't see the research happening, only the thinning pipeline that follows.
The assumption behind most UK B2B marketing budgets is that traffic drives enquiries. More sessions mean more buyers. That assumption is failing.
AI Mode searches end without a click 93% of the time (Semrush, 2025), far above the rate for a standard Google search. That gap is where B2B buyer research now happens. A buyer completing vendor evaluation inside an AI response will arrive at a business already decided, or already decided against it, with no session recorded and no analytics event triggered.
AI-cited brands convert at materially higher rates than non-cited competitors in the same category, and earn a larger share of the clicks that remain, even in a 93% zero-click environment. Yet only a small minority of UK mid-market businesses have implemented any GEO strategy to achieve those citations.
The Research Happens Before the Click
Google’s top-10 rankings no longer signal buyer visibility. The overlap between Google’s top-10 results and the pages AI platforms cite has collapsed from 76% in mid-2025 to 38% by early 2026 (Ahrefs, 2026). For the 62% of brands Semrush identifies as technically invisible to AI (Semrush, 2026), a strong Google presence now gives no guarantee of appearing in the AI answers buyers read.
“We rank on Google but clients can’t find us on AI” is the accurate description of this problem. Two different research channels now operate in the same search bar, sourcing their answers from almost entirely different places.
What Buyers Do in the 93%
When 93% of AI Mode searches end without a click, those buyers have already got what they came for. The AI response answered the question. It named suppliers, compared options, and returned a shortlist.
94% of B2B buyers now use AI in the purchasing process (Forrester, 2026). Many complete much of their vendor evaluation inside AI assistants before ever visiting a business website, and most have ranked their preferred vendor before they request a proposal (6sense, 2025). The zero-click majority is pre-qualified decision-making that leaves no analytics trace: no session, no form fill, no CRM record.
The Measurement Failure
Session counts, organic click-through rates, and MQL volumes measure behaviour that no longer represents how buyers buy. Impressions rising while clicks fall is the tell: AI Mode absorbs research intent and returns impressions as a side effect. The rising metric is misleading; the falling metric reflects real buyer migration.
Some sectors have lost a substantial share of their organic traffic over the past 12 months as buyers shift to AI-native research. UK businesses whose traffic volumes appear stable are often seeing passive searchers hold the numbers while in-market buyers, those with live purchase intent, have left for AI platforms.
What This Means for AI Search Visibility in Professional Services UK
Few UK businesses have a deliberate AI visibility strategy, yet a growing share of UK SMEs already use AI to research accountancy or business advisory services. The buyer behaviour has shifted; the supplier investment has not.
For UK SME and mid-market businesses that have relied on Google rankings as their primary visibility measure, the strategic gap is invisible in standard reporting. Standard analytics tools show rising impressions, stable sessions, and a pipeline that thins slowly enough that the mechanism is not apparent.
The mechanism is buyers researching right now, evaluating suppliers inside AI platforms, forming shortlists, and arriving at businesses already decided. They generate no analytics event during the process. The small share who click through from an AI citation convert at materially higher rates than organic equivalents because the AI response completed the consideration phase before the click happened.
The Buyer Who Clicks Has Already Been Sold
A 93% zero-click rate in AI Mode means buyers are completing their evaluation somewhere your website traffic metrics cannot see. The research happened. The shortlist was built. The click, if it comes, is confirmation.
Businesses with AI search visibility in professional services UK are capturing the conversion premium from buyers who arrive decided. Businesses outside AI citations are watching their qualified buyer pool shrink while their dashboards show normal. To see where your business stands across the major AI platforms today, run your free AI Discoverability Score.
References
- 6sense (2025) B2B Buyer Experience Report 2025. Available at: 6sense.com (Accessed: 29 May 2026).
- Ahrefs (2026) AI Overview citations from top-ranking pages. Available at: ahrefs.com (Accessed: 29 May 2026).
- Forrester (2026) B2B Buyers Make Zero-Click Buying Number One (State of Business Buying 2026). Available at: forrester.com (Accessed: 29 May 2026).
- Semrush (2025) Google AI Mode’s Early Adoption and SEO Impact. Available at: semrush.com (Accessed: 29 May 2026).
- Semrush (2026) Expanded 2026 AI Visibility Index. Available at: semrush.com (Accessed: 29 May 2026).
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