On usedby, 32 companies use 6sense and 48 use Clay. No company is listed with both yet. 6sense leads among the Data & Analytics companies on usedby that use either tool, Clay among the Marketing Tech companies.Latest check Oct 8, 2026: 68 of 80 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 6sense, Clay, or both
Every company with a public proof for at least one of the two tools.
31
use only 6sense
0
companies use both
47
use only Clay
31 companies use only 6sense, 47 use only Clay and 0 use both, out of the 79 companies on usedby that use at least one of them.
1 more company is listed for both, with a job post on one side: not counted as using both.
Where it lands
Newest customers
We have not started tracking changes for 6sense yet.
Where it lands
Newest customers
We have not started tracking changes for Clay 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 6sense, Clay or both: a share of the companies on usedby, not of the market.
6sense onlyBothClay only
More common with 6sense
- Data & Analytics3 of the 5 Data & Analytics companies on usedby that use either tool use 6sense.
More common with Clay
- Marketing Tech7 of the 11 Marketing Tech companies on usedby that use either tool use Clay.
- Artificial Intelligence7 of the 7 Artificial Intelligence companies on usedby that use either tool use Clay.
- Cybersecurity4 of the 7 Cybersecurity companies on usedby that use either tool use Clay.
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.
6senseClayWhat customers report
Results as the vendor or the customer published them, with the source and the date.
6sense
No reviewed story for 6sense yet.
Clay
new reps were revenue-generating 6x faster than before Clay
Pump
Vendor case study, clay.com, captured Oct 5, 2026
a 15% increase in enterprise meetings booked
Merge
Vendor case study, clay.com, captured Oct 5, 2026
Questions about 6sense and Clay
Which is used more, 6sense or Clay?
Clay has more customers on usedby: 48 against 32 for 6sense. 6sense leads among the Data & Analytics companies on usedby that use either tool, Clay among the Marketing Tech companies.
Do companies use both 6sense and Clay?
usedby has not found a company with a confirmed or observed line on both 6sense and Clay yet.
Who uses 6sense?
32 companies on usedby, each with the public page that shows it. See who uses 6sense.
Who uses Clay?
48 companies on usedby, each with the public page that shows it. See who uses Clay.
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.