# Trullion vs Zest: who uses which

On usedby, 20 companies use Trullion and 28 use Zest. No company is listed with both yet. Counts include every proof level, job-post signals included. Companies named on both have a confirmed or observed line on each side. Latest check 2026-10-08: 38 of 48 public lines checked.

## Side by side

|  | [Trullion](https://www.usedby.ai/tools/trullion.md) | [Zest](https://www.usedby.ai/tools/zest.md) |
|---|---|---|
| Public customers | 20 | 28 |
| Confirmed | 10 | 18 |
| Observed | 10 | 10 |
| Signals (job posts) | 0 | 0 |
| Top industries of customers | DevTools & Infrastructure (1), Insurance & InsurTech (1), Travel & Hospitality (1) | Banking & Mortgages (23) |
| Category | Finance & Accounting AI | Finance & Accounting AI |
| Data processing terms | A data processing agreement is available. ([trullion.com](https://trullion.com/privacy-policy/), checked 2026-10-08) | — |
| Integrations | Netsuite, Secure File Transfer Protocol ([trullion.com](https://trullion.com/product-updates/integrations-for-effortless-workflows/), checked 2026-10-08) | — |

## Published results

Reviewed stories only; usedby did not measure the figures.

- Trullion: [GRF CPAs & Advisors](https://www.usedby.ai/case-studies/grf-cpas-advisors-trullion.md): **40%**: “workflow time was reduced by 40%” (published 2023-10-04)
- Trullion: [Claroty](https://www.usedby.ai/case-studies/claroty-trullion.md): **90%**: “Over 90% time savings” (published 2024-06-14)

---
Source: https://www.usedby.ai/compare/trullion-vs-zest · How we check: https://www.usedby.ai/methodology