Attio vs Common Room: who uses which
Customers, public proof and the companies that use both.
On usedby, 20 companies use Attio and 68 use Common Room. No company is listed with both yet. Common Room leads among the DevTools & Infrastructure companies on usedby that use either tool.Latest check Oct 7, 2026: 86 of 88 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 Attio, Common Room, or both
Every company with a public proof for at least one of the two tools.
20
use only Attio
0
companies use both
68
use only Common Room
20 companies use only Attio, 68 use only Common Room and 0 use both, out of the 88 companies on usedby that use at least one of them.
Where it lands
Newest customers
No new customer since tracking started on October 2, 2026.
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.
By industry
Which tool the companies on usedby use, by industry. Shares of the companies on usedby that use Attio, Common Room or both: a share of the companies on usedby, not of the market.
Attio onlyBothCommon Room only
More common with Common Room
- DevTools & Infrastructure26 of the 28 DevTools & Infrastructure companies on usedby that use either tool use Common Room.
- Data & Analytics15 of the 16 Data & Analytics companies on usedby that use either tool use Common Room.
- Cybersecurity5 of the 5 Cybersecurity companies on usedby that use either tool use 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.
AttioCommon RoomWhat customers report
Results as the vendor or the customer published them, with the source and the date.
Attio
generating an extra 25% in GMV per month, thanks to Attio
Passionfroot
Vendor case study, attio.com, captured Oct 2, 2026
90% team adoption overnight, up from sub 50%
Taskrabbit
Vendor case study, attio.com, captured Oct 2, 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 Attio and Common Room
Which is used more, Attio or Common Room?
Common Room has more customers on usedby: 68 against 20 for Attio.
Do companies use both Attio and Common Room?
usedby has not found a company with a confirmed or observed line on both Attio and Common Room yet.
Who uses Attio?
20 companies on usedby, each with the public page that shows it. See who uses Attio.
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.