Fireflies vs Otter: who uses which
Customers, public proof and the companies that use both.
On usedby, 24 companies use Fireflies and 11 use Otter. 1 company uses both, including Salesforce.Latest check Oct 5, 2026: 26 of 35 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, Otter, or both
Every company with a public proof for at least one of the two tools.
23
use only Fireflies
1
company uses both
10
use only Otter
23 companies use only Fireflies, 10 use only Otter and 1 uses both, out of the 34 companies on usedby that use at least one of them.
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
OtterWhat customers report
Results as the vendor or the customer published them, with the source and the date.
Questions about Fireflies and Otter
Which is used more, Fireflies or Otter?
Fireflies has more customers on usedby: 24 against 11 for Otter.
Do companies use both Fireflies and Otter?
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 Otter?
11 companies on usedby, each with the public page that shows it. See who uses Otter.
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.