On usedby, 40 companies use Gong and 19 use Sybill. No company is listed with both yet. Gong leads among the Marketing Tech companies on usedby that use either tool.Latest check Oct 8, 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 Gong, Sybill, or both
Every company with a public proof for at least one of the two tools.
40
use only Gong
0
companies use both
19
use only Sybill
40 companies use only Gong, 19 use only Sybill and 0 use both, out of the 59 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 Sybill yet.
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 Gong, Sybill or both: a share of the companies on usedby, not of the market.
Gong onlyBothSybill only
More common with Gong
- Marketing Tech9 of the 10 Marketing Tech companies on usedby that use either tool use Gong.
- HR & Recruiting8 of the 8 HR & Recruiting companies on usedby that use either tool use Gong.
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.
Gong
SybillWhat customers report
Results as the vendor or the customer published them, with the source and the date.
Questions about Gong and Sybill
Which is used more, Gong or Sybill?
Gong has more customers on usedby: 40 against 19 for Sybill.
Do companies use both Gong and Sybill?
usedby has not found a company with a confirmed or observed line on both Gong and Sybill yet.
Who uses Gong?
40 companies on usedby, each with the public page that shows it. See who uses Gong.
Who uses Sybill?
19 companies on usedby, each with the public page that shows it. See who uses Sybill.
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.