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Reviewed by Jacob Whitmore, Whito · Fact-checked for accuracy
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Finding

Of 45 businesses named by Google AI Mode and Perplexity across seven local buying questions in plumbing, accountancy, dentistry and estate agency, 40 were independents, 88.9%, and only 5 were household names, Whito's August 2026 AI visibility study found.

Source: Whito, whito.co.uk/research/ai-visibility-study-august-2026, August 2026. Free to quote with a link to this page.

Last Updated on September 8, 2026

Whito Research, August 2026. We ran 15 buying questions through Google AI Mode and Perplexity on 13 August 2026, across plumbing and heating, accountancy, dentistry and estate agency, and recorded every business each engine named. Method and limitations are set out at the bottom of this page.

We asked AI to recommend an emergency plumber in London.

It did not mention Pimlico Plumbers.

Britain’s most famous plumbing brand, forty years of advertising, vans everywhere, and Google’s AI answer named WeFix London, Emergency Repairs London, 247 Rapid Response and 24-7 Emergency Plumbing instead. Businesses you have never heard of.

We then ran the same test across four industries. The pattern held every time.

Key findings, August 2026

  • Across seven local buying questions the two engines named 45 businesses. Only 5 were household names. 40 were independents, 88.9%.
  • Every one of the ten Manchester plumbers Perplexity named came from a single source: Which? Trusted Traders.
  • No Big Four accountancy firm was named for a small business accountant, on either engine.
  • No national dental group appeared for “dentist in Manchester”. Not mydentist, not Bupa.
  • Every business named sat at 4.5 stars or above. Nothing below 4.5 appeared in any answer.
  • Google introduced three estate agents by their award titles, using the award as the stated reason to recommend them.
  • Cite as: Whito AI Visibility Study, August 2026.

The headline number

Across seven local buying questions, the two engines named 45 businesses between them.

Five were household names.

Forty were independents. That is 88.9%.

Question askedBusinesses namedHousehold names among them
Emergency plumber, London112
Plumber, Manchester150
Accountant, Manchester70
Dentist, Manchester50
Estate agent, Manchester73
Total455

Not one national dental group appeared when we asked for a dentist in Manchester. Not mydentist. Not Bupa. Google named Smile Stylist, Deansgate Dental Studio, Ruh Dental, The Vallance Dental Centre and Cheadle Hulme Dental instead.

Not one of the Big Four accountancy firms appeared when we asked, as a business owner, which UK firms to contact. Not on Google, not on Perplexity. We got Mazuma, Countingup, Crunch, Osome, TaxAssist, Gorilla Accounting and Azets.

Ask for the best estate agents in the UK and Foxtons does not appear either.

Why this happens

An AI engine is not ranking brands by fame. It is answering a question. When the question is local and specific, brand recognition is worth nothing to it, because a national brand is not a better answer to “who can come to my house in Didsbury today”.

So it goes looking for something else. And what it finds is a directory.

The finding that matters most

When we asked Perplexity for a plumber in Manchester, it named ten firms.

Every single one came from Which? Trusted Traders.

Not from their websites. Not from their social media. Not from their advertising. From one directory listing, which the engine trusted because it is vetted.

Across all 15 answers, the sources the engines leaned on were consistent.

Source citedWhere it appeared
Which? Trusted TradersPlumbing, both engines, and bathrooms
CheckatradePlumbing, bathrooms
TrustATraderPlumbing
Gas Safe RegisterPlumbing, boilers
WaterSafePlumbing
ICAEW and ACCA member directoriesAccountancy
FreeAgent partner directoryAccountancy
Google Business Profile ratingsPlumbing, dentistry, estate agency
Industry award listingsEstate agency

That table is the cheapest marketing plan in Britain. It is a list of places to be listed.

Three more things the data showed

Awards are being read as evidence

Google did not just name Location Location as a good estate agent. It introduced the firm as “UK’s Best Small Estate Agency”. It called Ocean the best national medium-sized agent, and flagged Hannells as a gold award winner.

The award was not decoration. The award was the reason for inclusion. A trade award you thought was a vanity plaque is now a machine-readable reason to be recommended.

Ratings cluster at the top and the famous name loses

Every Manchester plumber named sat between 4.5 and 5.0.

Perplexity’s own ratings panel showed Pimlico Plumbers at 4.0, ranked below firms with no brand at all. In a list ordered by proof, forty years of advertising counted for less than a 4.9.

Vague questions name nobody

We asked Perplexity loosely who the best plumbing companies in the UK were. It named nobody at all and sent us to Trustpilot and Checkatrade.

Add three words, “name them specifically”, and it produced a list.

This matters because it tells you what the engine is actually doing. It only names businesses when it is confident. Confidence comes from verified, structured, third party evidence. Not from your website telling it you are the best.

What to do about it, by stage

Start: get listed where the engines are already looking

Pick the two or three directories for your trade from the table above and get a complete, accurate listing on each. Google Business Profile first, then the vetted one for your industry: Which? Trusted Traders, Checkatrade, Gas Safe, ICAEW, ACCA, whatever governs your work.

Complete means every field. Services, areas covered, hours, phone number, photos. A half-finished listing is not evidence.

This is the whole entry ticket. It costs less than one month of ads.

Start: get your rating above 4.5 and keep it there

Nothing below 4.5 was named in this study. Nothing.

Ask every customer, every time, at the moment the job is finished and they are pleased. That is the entire tactic. Volume at 4.8 or better is what gets you into the shortlist.

Build: make your area and service explicit in words

The engines answered questions phrased as “in Manchester”, “in London today”. They matched those words to businesses whose listings and pages said the same words plainly.

If your website says you serve “the North West”, and the customer asks about Stockport, you have made the engine guess. It will pick someone who did not make it guess.

Build: enter the awards

Small and medium business awards in your sector are now a visibility asset, not a plaque. If a trade body in your industry runs one, enter it, and put the result on your listings and your homepage.

Scale: check what AI actually says about you

Ask the engines the questions your customers ask. “I need a [your trade] in [your town].” See whether you appear. Then look at who did, and find the source they came from.

That source is your next job.

The takeaway

Nine out of ten businesses that AI recommends for a real local job are independents nobody has heard of.

Big brands are not winning this. They are frequently not in the answer at all.

What gets a business named is not fame or budget. It is being listed, verified and rated in the places the engines already trust. That is structure, and it is available to a one-van business for almost nothing.

Fix the listings. Fix the rating. Then worry about scale.

Method and limitations

We ran 15 prompts on 13 August 2026 across four industries: plumbing and heating, accountancy, dentistry and estate agency. Two engines were used, Google AI Mode and Perplexity. Each prompt was run once per engine and every business named in the answer was recorded.

Prompts were split into two types: local buying questions, phrased the way a customer ready to spend would ask, and national “who is best” questions.

Limitations, stated plainly. Google AI Mode was queried from a signed-in account, so some personalisation may be present. Perplexity was queried signed out. ChatGPT was attempted but would not submit reliably under automation, so it is excluded from the counts. AI answers vary between runs, so single-run results are a snapshot rather than a stable ranking. Manchester and London were the test cities and results elsewhere will differ.

We publish the counts and the prompts so anyone can repeat this. Cite as: Whito AI Visibility Study, August 2026.

Common questions

Does AI recommend big brands over small businesses?

Not for local work. In this study, 40 of the 45 businesses named in response to local buying questions were independents, 88.9%. Only five were household names.

How does AI decide which businesses to recommend?

In this study it leaned on vetted third party sources: Which? Trusted Traders, Checkatrade, Gas Safe Register, ICAEW and ACCA member directories, Google Business Profile ratings and industry award listings. Every Manchester plumber Perplexity named came from Which? Trusted Traders.

What rating do I need to be recommended by AI?

Every business named in this study sat at 4.5 or above, and most between 4.8 and 5.0. Nothing below 4.5 appeared.

Why is my business not showing up in AI answers?

Most often because there is no verified third party record of it. The engines named businesses they could find in vetted directories with visible ratings. A website alone was not enough in any of the 15 answers we recorded.

Do business awards help with AI visibility?

They did here. Google introduced three estate agents by their award titles, including “UK’s Best Small Estate Agency”, using the award as the stated reason for recommending them.

Is AI recommending you?

The free Whito Visibility Check checks how findable and trusted your business looks to customers and AI search, and shows you what to fix first.

Get your score

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Jacob Whitmore Founder and Lead Analyst
Jacob Whitmore founded Whito. He works on what UK businesses are actually charged for marketing, and on getting those numbers published with the date they were checked.