Pylon vs Sierra: who uses which
Customers, public proof and the companies that use both.
On usedby, 35 companies use Pylon and 50 use Sierra. 1 company uses both, including Airtable. Pylon leads among the DevTools & Infrastructure companies on usedby that use either tool, Sierra among the Fintech & Payments companies.Latest check Oct 8, 2026: 85 of 85 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 Pylon, Sierra, or both
Every company with a public proof for at least one of the two tools.
34
use only Pylon
1
company uses both
49
use only Sierra
34 companies use only Pylon, 49 use only Sierra and 1 uses both, out of the 84 companies on usedby that use at least one of them.
Where it lands
Newest customers
No new customer since tracking started on October 8, 2026.
Where it lands
Newest customers
Who uses both
Companies with a confirmed or observed line on both tools.
| Company | First public proof, Sierra |
|---|---|
 Airtable | On or before Jun 2026 |
By industry
Which tool the companies on usedby use, by industry. Shares of the companies on usedby that use Pylon, Sierra or both: a share of the companies on usedby, not of the market.
Pylon onlyBothSierra only
More common with Pylon
- DevTools & Infrastructure7 of the 8 DevTools & Infrastructure companies on usedby that use either tool use Pylon, 1 of them alongside Sierra.
- Artificial Intelligence6 of the 6 Artificial Intelligence companies on usedby that use either tool use Pylon.
More common with Sierra
- Fintech & Payments5 of the 5 Fintech & Payments companies on usedby that use either tool use Sierra.
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.
PylonSierraWhat customers report
Results as the vendor or the customer published them, with the source and the date.
Pylon
Ada completed their migration in 2 weeks with zero disruption
Ada
Vendor case study, usepylon.com, captured Oct 8, 2026
First response times have improved from 50 minutes to under 3.5 minutes for support issues
Coalesce
Vendor case study, usepylon.com, captured Oct 8, 2026
Sierra
Nearly 1,000 hours per month returned to exception handling and high-value work
RunBuggy
Vendor case study, sierra.ai, published Feb 3, 2026
Questions about Pylon and Sierra
Which is used more, Pylon or Sierra?
Sierra has more customers on usedby: 50 against 35 for Pylon. Pylon leads among the DevTools & Infrastructure companies on usedby that use either tool, Sierra among the Fintech & Payments companies.
Do companies use both Pylon and Sierra?
Yes. 1 company uses both on usedby, including Airtable.
Who uses Pylon?
35 companies on usedby, each with the public page that shows it. See who uses Pylon.
Who uses Sierra?
50 companies on usedby, each with the public page that shows it. See who uses Sierra.
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.