On usedby, 40 companies use mabl and 53 use Sonar. No company is listed with both yet. Sonar leads among the IT Services & System Integration companies on usedby that use either tool.Latest check Oct 7, 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 mabl, Sonar, or both
Every company with a public proof for at least one of the two tools.
40
use only mabl
0
companies use both
53
use only Sonar
40 companies use only mabl, 53 use only Sonar and 0 use both, out of the 93 companies on usedby that use at least one of them.
Where it lands
Newest customers
We have not started tracking changes for mabl 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.
By industry
Which tool the companies on usedby use, by industry. Shares of the companies on usedby that use mabl, Sonar or both: a share of the companies on usedby, not of the market.
mabl onlyBothSonar only
More common with Sonar
- IT Services & System Integration7 of the 7 IT Services & System Integration companies on usedby that use either tool use Sonar.
- Banking & Mortgages5 of the 6 Banking & Mortgages companies on usedby that use either tool use Sonar.
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.
mablSonarWhat customers report
Results as the vendor or the customer published them, with the source and the date.
mabl
mabl proved to be 2.5x faster than Selenium for test creation
Workday
Vendor case study, mabl.com, captured Oct 7, 2026
90% reduction in time spent on test maintenance
Momentum Energy
Vendor case study, mabl.com, captured Oct 7, 2026
Sonar
issues are identified 60% faster
DEPT®
Vendor case study, sonarsource.com, published Dec 31, 2025
onboard 3,500 repositories
Xero
Vendor case study, sonarsource.com, published Apr 10, 2026
Questions about mabl and Sonar
Which is used more, mabl or Sonar?
Sonar has more customers on usedby: 53 against 40 for mabl.
Do companies use both mabl and Sonar?
usedby has not found a company with a confirmed or observed line on both mabl and Sonar yet.
Who uses mabl?
40 companies on usedby, each with the public page that shows it. See who uses mabl.
Who uses Sonar?
53 companies on usedby, each with the public page that shows it. See who uses Sonar.
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.