Claude vs You.com: who uses which
Customers, public proof and the companies that use both.
On usedby, 170 companies use Claude and 10 use You.com. 2 companies use both, including Harvey and Windsurf. Claude leads among the DevTools & Infrastructure companies on usedby that use either tool.Latest check Oct 18, 2026: 152 of 180 public lines checked. Counts include every proof level, job-post signals included. A company on both tools counts at any proof level, and a job post on one side is marked as such.
Who uses Claude, You.com, or both
Every company with a public proof for at least one of the two tools.
168
use only Claude
2
companies use both
8
use only You.com
168 companies use only Claude, 8 use only You.com and 2 use both, out of the 178 companies on usedby that use at least one of them.
Who uses both
Companies with a public line on both tools, at any proof level: the strongest proofs come first, and a job post is marked.
| Company | First public proof, Claude | First public proof, You.com |
|---|---|---|
 Harvey | On or before Oct 2026 | On or before Apr 2026 |
 Windsurf | On or before Oct 2026 | On or before Apr 2026 |
By industry
Which tool the companies on usedby use, by industry. Shares of the companies on usedby that use Claude, You.com or both: a share of the companies on usedby, not of the market.
Claude onlyBothYou.com only
More common with Claude
- DevTools & Infrastructure30 of the 31 DevTools & Infrastructure companies on usedby that use either tool use Claude.
- Artificial Intelligence26 of the 26 Artificial Intelligence companies on usedby that use either tool use Claude, 1 of them alongside You.com.
- Fintech & Payments16 of the 16 Fintech & Payments companies on usedby that use either tool use Claude.
Source: every usedby line, from confirmed proofs to job-post signals (the weakest proof level).
Side by side
Facts from our data and from each vendor's public pages. Each line says where it comes from.
Claude
You.comWhat customers report
Results as the vendor or the customer published them, with the source and the date.
Claude
Claude Tag reduced the time required to reach an answer by 65%
Carvana
Vendor case study, claude.com, captured Oct 12, 2026
I prototyped a new product flow with Figma Make in five minutes.
Figma
Vendor case study, claude.com, captured Oct 12, 2026
You.com
No reviewed story for You.com yet.
Questions about Claude and You.com
Which is used more, Claude or You.com?
Claude has more customers on usedby: 170 against 10 for You.com.
Do companies use both Claude and You.com?
Yes. 2 companies use both on usedby, including Harvey and Windsurf.
Who uses Claude?
170 companies on usedby, each with the public page that shows it. See who uses Claude.
Who uses You.com?
10 companies on usedby, each with the public page that shows it. See who uses You.com.
How does usedby count customers?
A company counts when a public page shows it: a vendor's customer page, a case study, a press release or a job post, most saved with a dated capture. Every line is a customer, at one of four proof levels: confirmed, declared by the company itself, observed or signal (a job post, the weakest). A company counts as using both tools when it has a line on each, at any level; the list shows the strongest proofs first and marks job posts.