# Harvey vs Luminance: who uses which

On usedby, 235 companies use Harvey and 29 use Luminance. No company is listed with both yet. 1 more company appears on both with a job post (the weakest proof) on one side, counted apart. 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: 234 of 264 public lines checked.

## Side by side

|  | [Harvey](https://www.usedby.ai/tools/harvey.md) | [Luminance](https://www.usedby.ai/tools/luminance.md) |
|---|---|---|
| Public customers | 235 | 29 |
| Confirmed | 21 | 19 |
| Observed | 214 | 9 |
| Signals (job posts) | 0 | 1 |
| Top industries of customers | Legal & Compliance (139), Investment & VC (12), Manufacturing (9) | IT Services & System Integration (2), Manufacturing (2), Automotive Manufacturing (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. ([luminance.com](https://www.luminance.com/legal), checked 2026-10-07) |
| Security | — | SOC 2 Type II ([luminance.com](https://www.luminance.com/security), checked 2026-10-07) |

## 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)
- Luminance: [ProSapient](https://www.usedby.ai/case-studies/prosapient-luminance.md): **40%**: “40% time-savings on administrative tasks per week” (captured by usedby 2026-10-07)
- Luminance: [LG Chem](https://www.usedby.ai/case-studies/lg-chem-luminance.md): **over 30%**: “reduced the time spent on reviews by over 30% per contract” (captured by usedby 2026-10-07)

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