Fireflies vs tl;dv: who uses which
Customers, public proof and the companies that use both.
On usedby, 24 companies use Fireflies and 35 use tl;dv. 1 company uses both, including Salesforce. Fireflies leads among the DevTools & Infrastructure companies on usedby that use either tool.Latest check Oct 7, 2026: 47 of 59 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 Fireflies, tl;dv, or both
Every company with a public proof for at least one of the two tools.
23
use only Fireflies
1
company uses both
34
use only tl;dv
23 companies use only Fireflies, 34 use only tl;dv and 1 uses 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 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.
| Company |
|---|
 Salesforce |
Side by side
Facts from our data and from each vendor's public pages. Each line says where it comes from.
Fireflies
tl;dvWhat customers report
Results as the vendor or the customer published them, with the source and the date.
Questions about Fireflies and tl;dv
Which is used more, Fireflies or tl;dv?
tl;dv has more customers on usedby: 35 against 24 for Fireflies.
Do companies use both Fireflies and tl;dv?
Yes. 1 company uses both on usedby, including Salesforce.
Who uses Fireflies?
24 companies on usedby, each with the public page that shows it. See who uses Fireflies.
Who uses tl;dv?
35 companies on usedby, each with the public page that shows it. See who uses tl;dv.
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.