Attio vs ZoomInfo: who uses which
Customers, public proof and the companies that use both.
On usedby, 20 companies use Attio and 67 use ZoomInfo. 1 company uses both, including Legora. ZoomInfo leads among the Marketing Tech companies on usedby that use either tool.Latest check Oct 8, 2026: 85 of 87 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, ZoomInfo, or both
Every company with a public proof for at least one of the two tools.
19
use only Attio
1
company uses both
66
use only ZoomInfo
19 companies use only Attio, 66 use only ZoomInfo and 1 uses both, out of the 86 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
We have not started tracking changes for ZoomInfo yet.
Who uses both
Companies with a confirmed or observed line on both tools.
| Company |
|---|
 Legora |
By industry
Which tool the companies on usedby use, by industry. Shares of the companies on usedby that use Attio, ZoomInfo or both: a share of the companies on usedby, not of the market.
Attio onlyBothZoomInfo only
More common with ZoomInfo
- Marketing Tech6 of the 7 Marketing Tech companies on usedby that use either tool use ZoomInfo.
- HR & Recruiting5 of the 5 HR & Recruiting companies on usedby that use either tool use ZoomInfo.
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.
AttioZoomInfoWhat 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
ZoomInfo
4X faster program launch: what previously took nearly four months for 8 teams now takes just one month for 22 teams.
monday.com
Vendor case study, zoominfo.com, published Apr 29, 2026
generated around $400,000 of pipeline and around $150,000 of revenue
Syncro
Vendor case study, zoominfo.com, published May 27, 2026
Questions about Attio and ZoomInfo
Which is used more, Attio or ZoomInfo?
ZoomInfo has more customers on usedby: 67 against 20 for Attio.
Do companies use both Attio and ZoomInfo?
Yes. 1 company uses both on usedby, including Legora.
Who uses Attio?
20 companies on usedby, each with the public page that shows it. See who uses Attio.
Who uses ZoomInfo?
67 companies on usedby, each with the public page that shows it. See who uses ZoomInfo.
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.