We tried to verify 19 London businesses in an afternoon. Three passed
Not because the businesses are not real, but because the web makes verification oddly hard. What that gap does to local search, and how to check a listing yourself.
By Chinedu Chimezie, Founder and Editor
· · 4 min read
PrimeStreet has a rule about its directory: a business only goes in if its own website publishes the facts we list. Not a review site, not an aggregator, not a travel listicle. The company's own words about where it is and how to reach it.
We set out to apply that rule to a batch of well-known independent London businesses. Nineteen companies, chosen because they plainly exist and are plainly independent. The result was worse than we expected.
What happened to nineteen businesses
Three published both a full street address and a telephone number in a form we could read and verify. Those three are now in the directory.
Four published part of what we needed. One well-regarded Fitzrovia cafe lists two shops with full postcodes and no phone number at all. A fitness business lists phone numbers for two studios but gives only the postal districts, not the addresses. A restaurant group gives one address and a set of email addresses, no telephone. An estate agency naming five London branches prints a registered office in Teddington and no phone number on its front page.
The remaining twelve gave us nothing usable. Several refused automated access outright. Several had contact pages that no longer exist where their own navigation pointed. One returned an expired security certificate. One domain failed to resolve at all.
None of this means those businesses are badly run. It means a business's own website is a weaker source of structured fact than almost everyone assumes, and that anyone claiming to have verified a large directory this way is probably not doing what they say.
The failure modes are boringly consistent
The first is that contact details are designed for humans, not for checking. A phone number rendered inside an image, a contact form instead of a number, an address split across a footer and a map embed: all perfectly usable if you are a customer with a phone in your hand, all close to useless as a verifiable record.
The second is decay. Businesses move, change numbers, close one site and open another. The listing does not know. Nothing in the system tells it.
The third is copying. When a directory cannot verify something, the cheap option is to take it from another directory. That is how a single wrong phone number from 2019 ends up on nine sites, each of which looks like corroboration of the other eight. Agreement between aggregators is not evidence; it is often one error wearing several coats.
The search problem underneath it
There is a worse version of this when you search by category rather than by name. Search for an independent cleaner or removals firm in London and the first page is dominated by lead-generation sites: national operations with local-sounding names, buying the search term and selling the enquiry on. A genuinely local firm with one van and no marketing budget is not on that page.
This is why category pages on most local directories are so thin. They are not lists of local businesses. They are lists of businesses that are good at being listed.
A smaller trap, but a telling one: searching for London small business news returns, high up, an organisation in London, Ontario. If you were assembling a directory or a news feed automatically you would not notice, and your readers would.
What we do instead, and what it costs
Our rule is that a profile records where its facts came from. Each of the three businesses added this week carries a provenance note naming the official website and the date we read it. That is dull, and it is the only thing that makes a correction possible later: you cannot fix a fact whose origin you never recorded.
The rule has a cost, and it is honest to state it. It means the directory grows slowly, and that a category page may sit nearly empty for a while. We would rather have a short accurate list than a long plausible one, partly on principle and partly because a page of unverified listings is exactly the sort of thin page that deserves to be ignored.
The other half of the answer is not ours to supply: businesses maintaining their own listings. A claimed profile, corrected by the person who answers the phone, beats anything a publisher can establish from outside.
How to check a listing yourself
Four steps, in order of how much they tell you.
- Call the number before you rely on it. It is the fastest test of whether anything else on the page is current.
- Find the detail on the company's own domain. If the only source is a directory, treat it as a claim rather than a fact.
- Check the company on Companies House, which exists to "register company information and make it available to the public". Look at whether it is active and how long it has traded.
- Remember that a registered office is not a trading address. It is frequently an accountant's office, and tells you nothing about local presence.
If a listing fails all four, the business may still be excellent. You just have not learned anything about it yet.
How we checked this
Facts in this piece were taken from the primary sources below and checked on 6 October 2026. Rules and figures change: check the source before you act on anything here.
- Primary research: the official websites of 19 London businesses, read on 6 October 2026, against PrimeStreet's own data sourcing policy
- Companies House, GOV.UK: what Companies House does