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usedby
Search tools, companies

Your customers are already here. Help us keep them right.

Buyers and AI assistants read usedby to see who uses your tool. Each line comes from a public page. Here is what we show, how a line gets its proof level, and how to reach us.

Send a correctionSee your tool page

Live example: the Apollo page

Apollo

71

companies use Apollo

63 confirmed 8 observed

Confirmed or observed customers include Google, Intel, and Spotify.

Latest check Oct 5, 2026: 71 of 71 linesOpen the Apollo page

No public page, no line.

You can

  • Send a correction
  • Point us to a public customer page
  • Ask us to remove a wrong line

How the record works

  • Proof is never for sale: no one can pay for a line, a proof level or a better rank
  • A line needs a public page that shows the company with your tool
  • A job post makes a company your customer at the weakest level, Signal, and never as newly listed
  • A customer that leaves your pages is hidden after repeated checks, never listed as lost
  • A line backed by a case study or a named quote is never removed automatically

What usedby shows about your tool

One page per tool. Everything on it comes from public pages.

Customer count
Every public line, with the mix of proof levels next to the count, job-post signals included.
Customer list
Each company with its proof level, its source page and the first public proof we found.
Customer stories
Case studies that passed our review, linked to their source.
Facts before you buy
Plans, certifications, data training and data residency, read and quoted from your own pages.
Comparisons and alternatives
Customers shared with other tools, and the other tools of your category.
Newly listed customers
Once tracking starts on your tool, the companies that newly appear on your pages.

How a customer line gets its proof level

Each line carries one level, and every level counts as your customer. The level shows next to each line.

Confirmed

A case study, a named quote or a press release names the company and your tool together.

Observed

Your logo wall or customers page shows the company.

Signal

A job post at the company shows its employees use your tool. A customer at the weakest proof level, marked Signal.

Read the full method

How to work with us

No account needed. Email is the way in.

Send a correction

A wrong company, a wrong match or a line that should go: send the page and the line. We check it against its source.

Write a correction

Where your customer pages should be

  • A customers page or a logo wall on your own domain, linked from your homepage.
  • Logos with the company name in the image alt text, or a link to the company’s site, so each logo matches one company.
  • Case study pages that name the customer and your product together.
  • A publication date on each story (datePublished in JSON-LD, or article:published_time): we show it as the date of the story.
Send us a page

What we check

How a page becomes a line, how we check it again, and when a line is hidden: it is all on the method page.

How we check

See a line that is wrong, or a page we missed?

Write to us with the link. We check it against its source.

Write to usSee your tool page