Published September 17, 2026 · Last updated September 17, 2026 · Reviewed quarterly — engine behavior changes.

How does each AI choose which contractor to recommend?

You already know the pain. A homeowner asks ChatGPT "who should I call for a plumber in Austin" and gets three names. They ask Google's Gemini the same question and get different names. Neither list has you. Are the robots broken? No — they're just running four different rulebooks. This page is the explainer: where each AI pulls its business information from, what makes a contractor worth naming there, and the single fix that matters most on each engine.

Why the same question gets different answers

Here's the headline fact most contractors never hear. CiteLens analyzed 320 buyer-style queries (reported via EIN Presswire) and found that Google's AI Mode draws 93% of its citations from pages already ranking in Google's top 10, and Perplexity draws 89% from the same pile. ChatGPT only pulls 30% of its citations from the top 10 — and 70% of what it cites ranks in neither Google's nor Bing's top 10. So your Google ranking tells you almost nothing about whether ChatGPT will name you. Different engines, different phone books.

The second headline: the mix of sources each engine trusts. Yext studied 6.8 million AI citations (reported via Business Wire and Search Engine Land) and found that 86% come from sources the brand itself controls — websites (44%), business listings (42%), reviews and social (8%), forums (2%). But the split varies by engine: Gemini leans hardest on websites (52%), while ChatGPT leans hardest on listings (49%). That one difference decides a lot of what follows.

ChatGPT — the listings engine

Where it pulls business info from: ChatGPT leans on business listings first — Yelp, Angi, Yext-powered directories, and its own growing web of app integrations. Angi launched a ChatGPT app integration (reported via contractormag) that lets homeowners hire pros inside ChatGPT through Angi's network. If you're not in the directories ChatGPT trusts, you're invisible to it no matter how good your website is.

What makes a contractor citable: Complete, consistent listings everywhere it looks — name, address, phone number, hours, services, and categories matching exactly across Yelp, Google Business Profile, Angi, and the rest. A stack of recent, real reviews. Mentioned in "best plumber in [city]" roundups it can quote.

The one fix that matters most: Audit your listings for consistency. One wrong phone number on Yelp, one stale address on Angi, one category set to "general contractor" when you're a roofer — that's how you lose the citation. Fix the mismatches first; they're the cheapest win in AI search.

Google Gemini — the website engine

Where it pulls business info from: Gemini is Google's own engine, so it drinks from Google's well: your Google Business Profile, your website (52% of its citations point at websites, per Yext), and Google reviews. It's the engine closest to classic Google search — what ranks on Google is largely what Gemini will cite.

What makes a contractor citable: A Google Business Profile that is claimed, complete, and active — services listed, photos current, hours accurate, reviews answered. A website that actually answers homeowner questions in plain language ("how much does a burst-pipe repair cost in Austin") instead of brochure copy. Real reviews on Google, steady and recent.

The one fix that matters most: Treat your Google Business Profile like your storefront, not a formality. Finish every field, post updates, answer every review — because SOCi's study of 350,000 business locations found that business-profile information is about 68% accurate when ChatGPT and Perplexity repeat it, versus 100% on Gemini. Gemini trusts Google's data; give it data worth trusting.

Microsoft Copilot — the Bing engine

Where it pulls business info from: Copilot runs on Bing's index. Think of it as Bing with a conversational face: Bing's business listings, your website as Bing sees it, and Microsoft's own directory data.

What makes a contractor citable: Visibility in Bing's world — a claimed Bing Places profile, a website Bing can crawl cleanly (Bing is pickier than Google about crawl errors), and presence in the directories Bing favors. Most contractors have never checked their Bing Places listing. Their competitors haven't either, which is why this one is cheap to win.

The one fix that matters most: Claim and complete your Bing Places listing. Five minutes of work, near-zero competition from other contractors, and it's the front door to every Copilot recommendation.

Perplexity — the "show your work" engine

Where it pulls business info from: Perplexity answers with footnotes, and it cites a broad spread of the web — 89% of its citations come from Google's top 10 (CiteLens), so it's the most search-like of the answer engines. It favors pages that read like researched answers: guides, comparisons, and data.

What makes a contractor citable: Content on your site that answers real homeowner questions better than anyone else's — pricing guides, "what to expect" explainers, photo-documented job stories. Perplexity rewards the page that looks like the best-researched answer, not the biggest ad budget.

The one fix that matters most: Publish one genuinely useful answer page per service you want calls for. Not a keyword-stuffed service page — an actual answer ("What does emergency water extraction cost in [city]?"). One strong page beats ten thin ones on Perplexity.

What to do this week

1. Claim your Bing Places listing if you haven't — it's the fastest win on the board.
2. Audit your business listings (Yelp, Google Business Profile, Angi) for name/address/phone mismatches and fix every one.
3. Finish your Google Business Profile: every service, current photos, hours that are actually right.
4. Write one real answer page for your highest-margin service — pricing, process, what to expect.

Start with why your business doesn't show up for the full diagnosis, and check whether customers are actually finding contractors through AI for the demand picture.