How ChatGPT and Gemini actually pick which local business to name

When someone asks ChatGPT, Gemini or Perplexity for "a good plumber near me," the tool isn't consulting a ranked directory. With web search turned on, it runs a live search, reads what comes back, and writes an answer summarizing what it found. Which businesses get named depends on what showed up clearly and consistently in that search, not on a bid or a listing fee.

It reads what's public, not what you tell it

These tools don't take input directly from business owners. They see whatever is publicly indexed: your website, your directory listings, review sites, local news, anything crawlable. If your name, address and phone number are inconsistent across those sources, or your site doesn't clearly say what you do and where, the assistant has less to work with — and more reason to name a competitor whose information is cleaner.

Structured data gives it something unambiguous to read

Most of a webpage is prose meant for humans. Structured data (JSON-LD, using schema.org vocabulary like LocalBusiness) is different: it's a block of machine-readable facts — your name, phone, address, hours — sitting alongside the page for any tool that wants exact answers instead of guesses. It doesn't guarantee an AI tool uses it, but it removes the ambiguity that makes a tool default to a more clearly-documented competitor.

This is additive to SEO, not a replacement for it

The fundamentals search engines have always rewarded — an indexable site, accurate business info, real reviews — are the same raw material AI tools draw from. Nothing here replaces that work. What's changed is that a growing share of the people looking for a business like yours are asking an AI assistant instead of scrolling a results page.

• 45% of consumers used AI to find a local business in the past year, up from 6% (BrightLocal, 2026).
• 52% used AI to find a local business in just the last 30 days (SOCi, 2026).

None of this is guaranteed to change by fixing any one thing — AI answers vary from person to person and day to day, which is exactly why treating any single scan as a snapshot rather than a verdict matters. But seeing where the gaps actually are is the starting point, and that's what a free scan shows.