The Knowledge Graph is Google’s database of entities, meaning real-world people, organisations, places, products and ideas, along with the facts about each and how they relate to one another. It lets Google understand what a search refers to, rather than only matching the words typed.
How the Knowledge Graph works
Google introduced the Knowledge Graph in 2012 with the phrase “things, not strings”. Each entity has its own identifier, so Google can tell a Bristol café called The Lido apart from the swimming pool of the same name, and know which one a searcher means from context.
Facts come from many places: public databases such as Wikipedia and Wikidata, licensed data sets, official and government sources, structured data on websites, and what Google learns from crawling the web. Google cross-checks sources, so a fact that appears consistently in several trustworthy places is more likely to be accepted.
The graph powers visible features such as knowledge panels, carousels of related people or films, and quick factual answers. It also works behind the scenes. Understanding entities is part of semantic search: it helps Google interpret queries, connect a page to the topics it discusses and judge who is behind a piece of content.
Why it matters
For a UK business, being recognised as a distinct entity means Google can connect your name, website, social profiles, founders and location into one picture. That reduces confusion with similarly named businesses, supports a branded knowledge panel when people search your name, and makes it easier for search features, including AI-generated answers, to describe you accurately.
It matters most when your name is ambiguous, when you trade under a name different from your registered company, or when a founder’s personal reputation is part of what customers are buying, as it is for many consultants, solicitors and clinicians.
Common mistakes
- Looking for a submission form. There is no way to add yourself directly; Google decides based on the evidence it finds.
- Writing your own Wikipedia article. Wikipedia’s notability and conflict-of-interest rules mean a self-written page about a small business is usually deleted, sometimes with a public record of why.
- Inconsistent details. Different names, addresses or founding details across your website, Companies House, social profiles and directories make it harder for Google to be confident.
- Missing or wrong structured data. No Organisation schema, or schema that points to old profiles.
- Confusing it with Google Business Profile. A Business Profile controls your local listing; the Knowledge Graph is a wider understanding of who you are.
How to act on it
Make your About page the clearest statement of who you are: your trading name, legal name if different, what you do, where you are based and who runs the business. Add Organisation or Person schema to it with your logo, website and links to your official profiles. Keep your name, address and phone number identical across every listing, a principle known as NAP consistency.
Then earn independent mentions: trade association listings, local press, industry publications and interviews all give Google corroborating sources. Getting the structured data right is the technical half of this, and it is part of my schema markup service.