Companies that use LLMs.txt

Source: Analysis of Linkedin bios of 230,223 companies that use LLMs.txt

I noticed something surprising: LLMs.txt users are overwhelmingly small to mid-sized service businesses, not the tech companies you might expect. These are marketing agencies, law firms, real estate developers, medical practices, construction companies, and local retailers. They're the backbone of local economies: a cider farm in Vancouver, an orthopedic clinic in Jacksonville, a robotics education center in Austria, a salon in Dubai. Very few are pure software companies. Most build physical things, provide professional services, or operate brick-and-mortar locations.

These companies skew toward established small businesses rather than startups. The typical profile has 10-50 employees, has been operating for 5-20 years, and shows no venture funding. When funding appears at all, it's modest grants or seed rounds under $5M. The employee count discrepancies (listing "8 employees" but showing "51-200" in parentheses) suggest many are filling out profiles aspirationally or inaccurately. They're past survival mode but not scaling aggressively.