Glean vs Harvey: who uses which
Customers, public proof and the companies that use both.
On usedby, 49 companies use Glean and 235 use Harvey. 3 companies use both, including Booking.com, Deutsche Telekom, and Grammarly. Glean leads among the Fintech & Payments companies on usedby that use either tool, Harvey among the Legal & Compliance companies.Latest check Oct 8, 2026: 248 of 284 public lines checked. Counts include every proof level, job-post signals included. Companies named on both have a confirmed or observed line on each side.
Who uses Glean, Harvey, or both
Every company with a public proof for at least one of the two tools.
46
use only Glean
3
companies use both
232
use only Harvey
46 companies use only Glean, 232 use only Harvey and 3 use both, out of the 281 companies on usedby that use at least one of them.
Where it lands
Newest customers
No new customer since tracking started on October 7, 2026.
Where it lands
Newest customers
Who uses both
Companies with a confirmed or observed line on both tools.
| Company | First public proof, Harvey |
|---|---|
 Booking.com | On or before Sep 2026 |
 Deutsche Telekom | On or before Oct 2024 |
 Grammarly | On or before Aug 2025 |
By industry
Which tool the companies on usedby use, by industry. Shares of the companies on usedby that use Glean, Harvey or both: a share of the companies on usedby, not of the market.
Glean onlyBothHarvey only
More common with Glean
- Fintech & Payments6 of the 10 Fintech & Payments companies on usedby that use either tool use Glean.
More common with Harvey
- Legal & Compliance139 of the 141 Legal & Compliance companies on usedby that use either tool use Harvey.
- Investment & VC12 of the 12 Investment & VC companies on usedby that use either tool use Harvey.
- Manufacturing9 of the 9 Manufacturing companies on usedby that use either tool use Harvey.
Source: confirmed and observed usedby lines. Job-post signals, the weakest proof level, are left out of these shares.
Side by side
Facts from our data and from each vendor's public pages. Each line says where it comes from.
GleanHarveyWhat customers report
Results as the vendor or the customer published them, with the source and the date.
Glean
30+ min saved on searches with Glean
Pure Storage
Vendor case study, glean.com, captured Oct 7, 2026
What once took PMs up to 4 hours per document now takes just minutes
Nile
Vendor case study, glean.com, captured Oct 7, 2026
Harvey
saving up to eight hours per week on routine work with Harvey
The Adecco Group
Vendor case study, harvey.ai, published Feb 28, 2025
At a bare minimum, every attorney saves 10 hours a week, and many report reclaiming 15 to 20.
Pierson Ferdinand
Vendor case study, harvey.ai, published Jul 1, 2026
Questions about Glean and Harvey
Which is used more, Glean or Harvey?
Harvey has more customers on usedby: 235 against 49 for Glean. Glean leads among the Fintech & Payments companies on usedby that use either tool, Harvey among the Legal & Compliance companies.
Do companies use both Glean and Harvey?
Yes. 3 companies use both on usedby, including Booking.com, Deutsche Telekom, and Grammarly.
Who uses Glean?
49 companies on usedby, each with the public page that shows it. See who uses Glean.
Who uses Harvey?
235 companies on usedby, each with the public page that shows it. See who uses Harvey.
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 three proof levels: confirmed, observed or signal (a job post, the weakest). A company is named as using both tools when its lines on both are confirmed or observed.