Which plumbers in Denver, CO does AI recommend?
Google Maps returns 99 of them. Four assistants, asked three buyer questions each, named 13: 13.1%. 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 Denver, CO”
- “which plumber in Denver, CO would you recommend”
- “I just moved to Denver, CO, 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
8 of 99 (8.1%)- Applewood Plumbing Heating & Electric
- Blue Sky Plumbing, Heating, Cooling & Electric
- Brothers Plumbing, Heating & Electric
- Golden West Plumbing, Heating, Air Conditioning, and Electrical
- Hyper Flow Service
- My Denver Plumber
- Plumbers Near Me LLC
- Speed plumbing
ChatGPT
6 of 99 (6.1%)- Applewood Plumbing Heating & Electric
- Blue Sky Plumbing, Heating, Cooling & Electric
- Brothers Plumbing, Heating & Electric
- Denver Plumbers
- Done Plumbing, Heating, Cooling & Electric
- High 5 Plumbing, Heating, Cooling & Electric
Claude
3 of 99 (3.0%)- Denver Plumbers
- My Denver Plumber
- Roto-Rooter Plumbing & Water Cleanup
Gemini
3 of 99 (3.0%)- Applewood Plumbing Heating & Electric
- Blue Sky Plumbing, Heating, Cooling & Electric
- Swan Plumbing, Heating & Air of Denver
Where the engines agree
Of the 13 businesses named at all, 8 were named by a single engine and nobody else. That is the practical argument against picking one assistant and calling it your AI visibility: Denver, CO looks like a different market depending on which one you ask.
Named by two or more engines (5)
- Applewood Plumbing Heating & Electric
- Blue Sky Plumbing, Heating, Cooling & Electric
- Brothers Plumbing, Heating & Electric
- Denver Plumbers
- My Denver Plumber
Named by all four (0)
No plumber in Denver, CO 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 Denver, CO market is at least 99 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 34 businesses (34.3%) 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.