How often do ChatGPT and Claude name pressure washing companies in Columbia?

We asked “best pressure washing service in Columbia” 6 times across ChatGPT and Claude and checked 11 local pressure washing companies with their own websites.

Preliminary: small sample. 11 businesses and 6 answers, below our 10-business, 20-answer bar for the Index. It’s not listed or counted in the report, and we don’t show who was named most.

30/100average AI Recommendation Score

2 of 11pressure washing companies named at least once

45%have no business details for machines (structured data) on their home page

45%show no opening hours on their home page

18%block at least one AI crawler

Named most often

Not shown for a preliminary sample.

What the named ones have in common

0% of the pressure washing companies we checked don't name Columbia on their home page, which makes it harder for an assistant to connect them to local questions.
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Tested 2026-10-28 on ChatGPT (OpenAI API) and Claude (Anthropic API). 11 businesses, 6 recorded answers. Answers change from run to run; these counts describe this test only, not a ranking. Businesses are named only when the assistants named them; we never single out a business for doing badly. How we test. See something wrong? Tell us and we’ll check it and correct the page.