On usedby, 55 companies use Nooks and 3 use Regie. No company is listed with both yet. Nooks leads among the DevTools & Infrastructure companies on usedby that use either tool.Latest check Oct 8, 2026: 57 of 58 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 Nooks, Regie, or both
Every company with a public proof for at least one of the two tools.
55
use only Nooks
0
companies use both
3
use only Regie
55 companies use only Nooks, 3 use only Regie and 0 use both, out of the 58 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 5, 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 Nooks, Regie or both: a share of the companies on usedby, not of the market.
Nooks onlyBothRegie only
More common with Nooks
- DevTools & Infrastructure8 of the 8 DevTools & Infrastructure companies on usedby that use either tool use Nooks.
- Sales Tech & CRM5 of the 6 Sales Tech & CRM companies on usedby that use either tool use Nooks.
- Marketing Tech4 of the 5 Marketing Tech companies on usedby that use either tool use Nooks.
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.
Nooks
RegieWhat customers report
Results as the vendor or the customer published them, with the source and the date.
Questions about Nooks and Regie
Which is used more, Nooks or Regie?
Nooks has more customers on usedby: 55 against 3 for Regie.
Do companies use both Nooks and Regie?
usedby has not found a company with a confirmed or observed line on both Nooks and Regie yet.
Who uses Nooks?
55 companies on usedby, each with the public page that shows it. See who uses Nooks.
Who uses Regie?
3 companies on usedby, each with the public page that shows it. See who uses Regie.
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.