# Concourse vs Zest: who uses which

On usedby, 18 companies use Concourse 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 2026-10-07: 36 of 46 public lines checked.

## Side by side

|  | [Concourse](https://www.usedby.ai/tools/concourse.md) | [Zest](https://www.usedby.ai/tools/zest.md) |
|---|---|---|
| Public customers | 18 | 28 |
| Confirmed | 8 | 18 |
| Observed | 10 | 10 |
| Signals (job posts) | 0 | 0 |
| Top industries of customers | Artificial Intelligence (2), Cybersecurity (2), Streaming & Content (1) | Banking & Mortgages (23) |
| Category | Finance & Accounting AI | Finance & Accounting AI |
| Security | SOC 2 Type II ([concourse.ai](https://www.concourse.ai/security), checked 2026-10-07) | — |
| Integrations | Oracle, SAP, Snowflake, QuickBooks, NetSuite, Salesforce, Workday, BigQuery, Fabric, Databricks, Sage, Xero ([concourse.ai](https://www.concourse.ai/integrations), checked 2026-10-07) | — |

## Published results

Reviewed stories only; usedby did not measure the figures.

- Concourse: [Pave](https://www.usedby.ai/case-studies/pave-concourse.md): **90%**: “How Pave cut vendor analysis time by 90% and freed 5+ hours per month with Concourse AI Agents” (captured by usedby 2026-10-07)
- Concourse: [Maximus](https://www.usedby.ai/case-studies/maximus-concourse.md): **$70K**: “How Maximus saved $70K and reduced manual finance work by 85% with Concourse AI Agents” (captured by usedby 2026-10-07)

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