Sierra50 customers
Used by 50 companies on usedby. 2 also use Level AI. Compare Level AI and Sierra
Source: sierra.ai, latest capture Oct 7, 2026.
5 of the 19 Level AI customers on usedby also use another tool on this list. The tools most often used by the same companies are Sierra (2 shared, 50 customers in all), Talkdesk (1 shared, 47 customers in all), and Decagon (1 shared, 43 customers in all).Latest check Oct 8, 2026: 690 of 719 public lines checked. Customer counts include every proof level, job-post signals included. Shared customers are counted on confirmed or observed lines on both tools.
5of 19
Level AI customers also use another tool on this list
Sierra shares the most companies with Level AI: 2 companies use both.
Tools of the same or a competing category, from another vendor, used by at least one company that also uses Level AI. A shared customer has a confirmed or observed line on both tools.
| # | Alternative | Shared with Level AI | Customers | Compare |
|---|---|---|---|---|
| 1 | Sierra | 2 | 50 | Compare Level AI vs Sierra |
| 2 | TalkdeskMostly Banking & Mortgages (7) | 1 | 47 | Compare Level AI vs Talkdesk |
| 3 | Decagon | 1 | 43 | Compare Level AI vs Decagon |
| 4 | Crescendo | 1 | 31 | Compare Level AI vs Crescendo |
| 5 | Zendesk AIMostly DevTools & Infrastructure (4) | 1 | 27 | Compare Level AI vs Zendesk AI |
| 6 | Hiver | 1 | 19 |
Sierra50 customersUsed by 50 companies on usedby. 2 also use Level AI. Compare Level AI and Sierra
Source: sierra.ai, latest capture Oct 7, 2026.
Talkdesk47 customersUsed by 47 companies on usedby, 7 of them in Banking & Mortgages. 1 also uses Level AI. Compare Level AI and Talkdesk
Source: talkdesk.com, latest capture Oct 4, 2026.
Decagon43 customersUsed by 43 companies on usedby. 1 also uses Level AI. Compare Level AI and Decagon
Source: decagon.ai, latest capture Oct 7, 2026.
Crescendo31 customersUsed by 31 companies on usedby. 1 also uses Level AI. Compare Level AI and Crescendo
Source: crescendo.ai, latest capture Oct 7, 2026.
Zendesk AI27 customersUsed by 27 companies on usedby, 4 of them in DevTools & Infrastructure. 1 also uses Level AI. Compare Level AI and Zendesk AI
Source: zendesk.com, latest capture Oct 5, 2026.
Hiver19 customersUsed by 19 companies on usedby. 1 also uses Level AI.
Source: hiverhq.com, latest capture Oct 3, 2026.
Same category, with public customers, but no company named with Level AI yet.
A company that left one vendor's page and appeared on another's.
Which of these tools the companies on usedby use, by industry. Each row counts the companies of that industry on usedby that use at least one of these tools.
| Industry | Most used | Next | Companies |
|---|---|---|---|
| Fintech & Payments | DevRev23% | Ada20% | 30 companies |
| DevTools & Infrastructure | Pylon33% | Assembled14% | 21 companies |
| Telecommunications | Cognigy31% | Sanas25% | 16 companies |
| Artificial Intelligence | Pylon40% | Intercom33% | 15 companies |
| HR & Recruiting | Ada21% | CallMiner14% | 14 companies |
Read the first row as: among the 30 Fintech & Payments companies on usedby that use one of these tools, 23% use DevRev. Shares can add up to more than 100% because some companies use two tools.
Sierra: 2 companies use both on usedby. Sierra has 50 customers in all. See who uses Sierra.
5 of the 19 Level AI customers on usedby also use another tool on this list. Sierra shares the most: 2.
Among the 30 Fintech & Payments companies on usedby that use one of these tools, 23% use DevRev. Ada comes next, with 20%.
Among the 21 DevTools & Infrastructure companies on usedby that use one of these tools, 33% use Pylon. Assembled comes next, with 14%.
Only tools of the same or a competing category, from another vendor, count. They are ranked by shared customers: companies with a confirmed or observed line on both tools, from public pages, most with a dated capture. Tools with no shared customer are listed apart. Customer counts include every proof level, job-post signals included.