# Harvey vs LegalOn: who uses which

On usedby, 235 companies use Harvey and 40 use LegalOn. 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: 245 of 275 public lines checked.

## Side by side

|  | [Harvey](https://www.usedby.ai/tools/harvey.md) | [LegalOn](https://www.usedby.ai/tools/legalon.md) |
|---|---|---|
| Public customers | 235 | 40 |
| Confirmed | 21 | 13 |
| Observed | 214 | 27 |
| Signals (job posts) | 0 | 0 |
| Top industries of customers | Legal & Compliance (139), Investment & VC (12), Manufacturing (9) | Consumer Goods (1), HR & Recruiting (1), Retail (1) |
| Category | Legal AI | Legal AI |
| Data residency | EU, Switzerland, US, Australia ([harvey.ai](https://www.harvey.ai/security), checked 2026-10-03) | — |
| Your data | Not used to train models by default. ([harvey.ai](https://www.harvey.ai/security), checked 2026-10-03) | — |
| Data processing terms | A data processing agreement is available. ([harvey.ai](https://www.harvey.ai/legal/privacy-policy), checked 2026-10-03) | A data processing agreement is available. ([legalontech.com](https://www.legalontech.com/terms-and-conditions?tab=privacy-policy), checked 2026-10-08) |
| Security | — | ISO 27001, ISO 27017 ([legalontech.com](https://www.legalontech.com/security), checked 2026-10-08) |
| Integrations | — | Microsoft Word, Slack, SharePoint ([legalontech.com](https://www.legalontech.com/integrations), checked 2026-10-08) |

## Published results

Reviewed stories only; usedby did not measure the figures.

- Harvey: [The Adecco Group](https://www.usedby.ai/case-studies/the-adecco-group-harvey.md): **eight hours**: “saving up to eight hours per week on routine work with Harvey” (published 2025-02-28)
- Harvey: [Pierson Ferdinand](https://www.usedby.ai/case-studies/pierson-ferdinand-harvey.md): **10 hours**: “At a bare minimum, every attorney saves 10 hours a week, and many report reclaiming 15 to 20.” (published 2026-07-01)
- LegalOn: [Rural Collaborative](https://www.usedby.ai/case-studies/the-rural-collaborative-legalon.md): **3×**: “3× faster contract reviews: Tianna now completes a review in just 3–4 hours instead of an entire day.” (captured by usedby 2026-10-08)
- LegalOn: [Wagner Equipment Co.](https://www.usedby.ai/case-studies/wagner-equipment-co-legalon.md): **50%**: “Contract review time cut by 50%.” (captured by usedby 2026-10-08)

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