On usedby, 17 companies use Heap and 28 use Rill. 1 company uses both, including Deepgram. Rill leads among the Advertising & AdTech companies on usedby that use either tool.Latest check Nov 14, 2026: 45 of 45 public lines checked. Counts include every proof level, job-post signals included. A company on both tools counts at any proof level, and a job post on one side is marked as such.
Who uses Heap, Rill, or both
Every company with a public proof for at least one of the two tools.
16
listed for Heap only
1
company uses both
27
listed for Rill only
On usedby, 16 companies are listed for Heap only, 27 are listed for Rill only and 1 uses both, out of the 44 companies listed for at least one. An absent listing does not prove non-use.
Who uses both
Companies with a public line on both tools, at any proof level: the strongest proofs come first, and a job post is marked.
| Company | First public proof, Heap | First public proof, Rill |
|---|---|---|
 Deepgram | On or before Nov 2026 | On or before Nov 2026 |
Side by side
Facts from our data and from each vendor's public pages. Each line says where it comes from.
Vendor facts checked: Heap, 0 of 4; Rill, 1 of 4. Missing facts remain unverified, not absent features.
Heap
RillWhat customers report
Results as the vendor or the customer published them, with the source and the date.
Heap
We have over 220 employees in Heap running over 44,000 queries on a monthly basis.
Amway
Vendor case study, heap.io, captured Nov 13, 2026
This has saved Esurance an average of $225K a month since the fix went into production.
Esurance
Vendor case study, heap.io, captured Nov 13, 2026
Rill
the Rill implementation cost is 26% less than initially scoped
Emodo
Vendor case study, rilldata.com, captured Nov 13, 2026
Sales people are onboarded with less than 15 minutes of training
Liftoff
Vendor case study, rilldata.com, captured Nov 13, 2026
Questions about Heap and Rill
Which is used more, Heap or Rill?
Rill has more customers on usedby: 28 against 17 for Heap.
Do companies use both Heap and Rill?
Yes. 1 company uses both on usedby, including Deepgram.
Who uses Heap?
17 companies on usedby, each with the public page that shows it. See who uses Heap.
Who uses Rill?
28 companies on usedby, each with the public page that shows it. See who uses Rill.
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 four proof levels: confirmed, declared by the company itself, observed or signal (a job post, the weakest). A company counts as using both tools when it has a line on each, at any level; the list shows the strongest proofs first and marks job posts.