Clay vs Common Room: who uses which
Customers, public proof and the companies that use both.
On usedby, 48 companies use Clay and 68 use Common Room. 7 companies use both, including Anthropic, Figma, and Hubspot. Clay leads among the Artificial Intelligence companies on usedby that use either tool, Common Room among the DevTools & Infrastructure companies.Latest check Oct 7, 2026: 115 of 116 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 Clay, Common Room, or both
Every company with a public proof for at least one of the two tools.
41
use only Clay
7
companies use both
61
use only Common Room
41 companies use only Clay, 61 use only Common Room and 7 use both, out of the 109 companies on usedby that use at least one of them.
Where it lands
Newest customers
We have not started tracking changes for Clay yet.
Where it lands
Newest customers
No new customer since tracking started on October 7, 2026.
Who uses both
Companies with a confirmed or observed line on both tools.
| Company | First public proof, Common Room |
|---|---|
 Anthropic | On or before May 2026 |
 Figma | On or before Oct 2024 |
 Hubspot | On or before Oct 2024 |
 Notion | On or before Jun 2024 |
 Okta | Job post, Feb 2026 |
 Webflow | On or before Apr 2023 |
 Grafana Labs | On or before Oct 2024 |
By industry
Which tool the companies on usedby use, by industry. Shares of the companies on usedby that use Clay, Common Room or both: a share of the companies on usedby, not of the market.
Clay onlyBothCommon Room only
More common with Clay
- Artificial Intelligence7 of the 8 Artificial Intelligence companies on usedby that use either tool use Clay, 1 of them alongside Common Room.
- Marketing Tech7 of the 8 Marketing Tech companies on usedby that use either tool use Clay, 1 of them alongside Common Room.
More common with Common Room
- DevTools & Infrastructure26 of the 28 DevTools & Infrastructure companies on usedby that use either tool use Common Room, 3 of them alongside Clay.
- Data & Analytics15 of the 16 Data & Analytics companies on usedby that use either tool use Common Room, 1 of them alongside Clay.
- Cybersecurity5 of the 8 Cybersecurity companies on usedby that use either tool use Common Room, 1 of them alongside Clay.
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.
ClayCommon RoomWhat customers report
Results as the vendor or the customer published them, with the source and the date.
Clay
new reps were revenue-generating 6x faster than before Clay
Pump
Vendor case study, clay.com, captured Oct 5, 2026
a 15% increase in enterprise meetings booked
Merge
Vendor case study, clay.com, captured Oct 5, 2026
Common Room
Common Room was responsible for helping the sales org generate 26% of qualified leads
Apollo GraphQL
Vendor case study, commonroom.io, published Feb 20, 2024
7.5x seat expansion in under a year
Jasper
Vendor case study, commonroom.io, published Jun 4, 2026
Questions about Clay and Common Room
Which is used more, Clay or Common Room?
Common Room has more customers on usedby: 68 against 48 for Clay. Clay leads among the Artificial Intelligence companies on usedby that use either tool, Common Room among the DevTools & Infrastructure companies.
Do companies use both Clay and Common Room?
Yes. 7 companies use both on usedby, including Anthropic, Figma, and Hubspot.
Who uses Clay?
48 companies on usedby, each with the public page that shows it. See who uses Clay.
Who uses Common Room?
68 companies on usedby, each with the public page that shows it. See who uses Common Room.
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.