# LegalOn vs Sirion: who uses which

On usedby, 40 companies use LegalOn and 24 use Sirion. 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: 64 of 64 public lines checked.

## Side by side

|  | [LegalOn](https://www.usedby.ai/tools/legalon.md) | [Sirion](https://www.usedby.ai/tools/sirion.md) |
|---|---|---|
| Public customers | 40 | 24 |
| Confirmed | 13 | 11 |
| Observed | 27 | 13 |
| Signals (job posts) | 0 | 0 |
| Top industries of customers | Consumer Goods (1), HR & Recruiting (1), Retail (1) | Energy, Utilities & Cleantech (3), Biotech & Pharma (2), Aerospace & Defense (1) |
| Category | Legal AI | Legal AI |
| Security | ISO 27001, ISO 27017 ([legalontech.com](https://www.legalontech.com/security), checked 2026-10-08) | — |
| Data processing terms | A data processing agreement is available. ([legalontech.com](https://www.legalontech.com/terms-and-conditions?tab=privacy-policy), 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.

- 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)
- Sirion: [DP World](https://www.usedby.ai/case-studies/dp-world-sirion.md): **~80%**: “DP World Cut Contract Cycle Time by ~80%” (published 2026-05-30)
- Sirion: [Zalando](https://www.usedby.ai/case-studies/zalando-sirion.md): **80,000+**: “80,000+ contracts ingested using AI-driven extraction, deduplication, and quality controls” (published 2026-05-31)

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