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AI visibility for B2B SaaS

Your buyers ask an assistant which tool to use before they ask a search engine, and the answer names three companies. This is what decides whether one of them is you.

B2B companies read
2,005
Block an AI crawler
129
Counted
Aug 2026

What we counted in this sector

From our own census of the Y Combinator directory, run August 7, 2026.

2,005
B2B companies read
129
block at least one AI crawler

Every company listed as Active in the Y Combinator public company directory, deduplicated by domain. The figure is crawler access read from robots.txt, which is whether an engine is allowed to fetch a site at all. It is not a visibility score: a site every crawler can reach can still go unmentioned, and that is the thing the free check measures. Both numbers above carry the same denominator so you can recompute the share yourself.

Why the answers differ here

Reasoning from how the engines behave, rather than a scan of this sector. We have not measured visibility by sector and do not imply that we have.

B2B buying questions are comparative almost by default: people ask for the best tool for a job, or for alternatives to a product they already know. Comparative questions send an engine looking for pages that list several vendors side by side, which is why review platforms and roundups carry so much of the citation weight in this sector and why a product page rarely does, however good it is.

Where most people start

The same catalogue as everywhere else on this site, ordered for this sector rather than reinvented for it.

Other sectors we counted

The sector figure is not your figure

A census tells you what is normal in your sector. It cannot tell you where you stand in it, and the two are different questions. The free check answers the second one on your own domain, with the interval it is accurate to.