Which plumbers in Columbus, OH does AI recommend?
Google Maps returns 96 of them. Four assistants, asked three buyer questions each, named 13: 13.5%. Every name is below.
plumbers Google Maps returns for this query
of them were named by at least one assistant
were named by none of the four
What we asked
Three phrasings, fixed before the study ran, put to each of the four assistants. Chat models were sampled three times per question because their answers move between runs.
- “best plumber in Columbus, OH”
- “which plumber in Columbus, OH would you recommend”
- “I just moved to Columbus, OH, which plumber should I go to”
Who each engine named
Engines are ordered by how many businesses they reached. A name appears here when the Maps listing name showed up as a whole phrase in at least one answer.
Google AI Overviews
10 of 96 (10.4%)- 1-Tom-Plumber
- Eco Plumbers, Electricians, and HVAC Technicians
- Parson Plumbing and Drains
- Plumbing & Drain Professionals
- Roto-Rooter Plumbing & Water Cleanup
- Roto-Rooter Plumbing & Water Cleanup of Columbus
- Safe Electric and Plumbing
- Shorty's Plumbing LLC
- The Local Plumber LLC
- The Waterworks Plumbing, Drain, Heating & Cooling
ChatGPT
3 of 96 (3.1%)- Benjamin Franklin Plumbing of Columbus
- Mr. Rooter Plumbing of Columbus
- Roto-Rooter Plumbing & Water Cleanup
Claude
1 of 96 (1.0%)- Roto-Rooter Plumbing & Water Cleanup
Gemini
1 of 96 (1.0%)- Five Star Columbus Plumbing
Where the engines agree
Of the 13 businesses named at all, 12 were named by a single engine and nobody else. That is the practical argument against picking one assistant and calling it your AI visibility: Columbus, OH looks like a different market depending on which one you ask.
Named by two or more engines (1)
- Roto-Rooter Plumbing & Water Cleanup
Named by all four (0)
No plumber in Columbus, OH was named by all four engines. Full agreement is rarer than it sounds.
How to read this, and what it does not say
- This is not a ranking. Being named means an assistant said your name out loud when a buyer asked. It is a visibility measurement, not a judgement about which plumber is better.
- It is one snapshot. Collected 2026-08-15/16 on the models of that week. Generative answers move, so a business missing here may be named today and the reverse is just as true.
- The denominator is capped. Google Maps was queried at depth 100, so the real Columbus, OH market is at least 96 plumbers and possibly larger. The share is therefore an upper bound.
- Strict name matching. A looser matcher, the one the product itself uses against a single business, would put this market at 30 businesses (31.3%) instead of 13. Both are published; the strict figure is the headline because the loose one inflates counts across a full roster.
13 names on this page come straight from that file, so every claim here can be recomputed without trusting us.