Common Room vs UserGems: who uses which
Customers, public proof and the companies that use both.
On usedby, 68 companies use Common Room and 25 use UserGems. 1 company uses both, including Hubspot. Common Room leads among the DevTools & Infrastructure companies on usedby that use either tool, UserGems among the Marketing Tech companies.Latest check Oct 8, 2026: 93 of 93 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 Common Room, UserGems, or both
Every company with a public proof for at least one of the two tools.
67
use only Common Room
1
company uses both
24
use only UserGems
67 companies use only Common Room, 24 use only UserGems and 1 uses both, out of the 92 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
No new customer since tracking started on October 8, 2026.
Who uses both
Companies with a confirmed or observed line on both tools.
| Company | First public proof, Common Room |
|---|---|
 Hubspot | On or before Oct 2024 |
By industry
Which tool the companies on usedby use, by industry. Shares of the companies on usedby that use Common Room, UserGems or both: a share of the companies on usedby, not of the market.
Common Room onlyBothUserGems only
More common with Common Room
- DevTools & Infrastructure26 of the 26 DevTools & Infrastructure companies on usedby that use either tool use Common Room.
- Data & Analytics15 of the 15 Data & Analytics companies on usedby that use either tool use Common Room.
- Cybersecurity5 of the 6 Cybersecurity companies on usedby that use either tool use Common Room.
More common with UserGems
- Marketing Tech4 of the 5 Marketing Tech companies on usedby that use either tool use UserGems, 1 of them alongside Common Room.
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.
Common RoomUserGemsWhat customers report
Results as the vendor or the customer published them, with the source and the date.
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
UserGems
generated 276 sales opportunities worth over $18M in new business pipeline
Mimecast
Vendor case study, usergems.com, captured Oct 8, 2026
50-60% 50–60% of outbound meetings come from UserGems signals & Gem-E.
Accord
Vendor case study, usergems.com, captured Oct 8, 2026
Questions about Common Room and UserGems
Which is used more, Common Room or UserGems?
Common Room has more customers on usedby: 68 against 25 for UserGems. Common Room leads among the DevTools & Infrastructure companies on usedby that use either tool, UserGems among the Marketing Tech companies.
Do companies use both Common Room and UserGems?
Yes. 1 company uses both on usedby, including Hubspot.
Who uses Common Room?
68 companies on usedby, each with the public page that shows it. See who uses Common Room.
Who uses UserGems?
25 companies on usedby, each with the public page that shows it. See who uses UserGems.
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.