# Glean vs Harvey: who uses which

On usedby, 49 companies use Glean and 235 use Harvey. 3 companies use both, including Booking.com, Deutsche Telekom and Grammarly. 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: 248 of 284 public lines checked.

## Side by side

|  | [Glean](https://www.usedby.ai/tools/glean.md) | [Harvey](https://www.usedby.ai/tools/harvey.md) |
|---|---|---|
| Public customers | 49 | 235 |
| Confirmed | 30 | 21 |
| Observed | 18 | 214 |
| Signals (job posts) | 1 | 0 |
| Top industries of customers | Fintech & Payments (6), Data & Analytics (5), Logistics & Supply Chain (3) | Legal & Compliance (139), Investment & VC (12), Manufacturing (9) |
| Category | Knowledge & Internal Search | Legal AI |
| Security | SOC 2 Type II, ISO 27001, ISO 42001, HIPAA ([glean.com](https://www.glean.com/platform/security), checked 2026-10-04) | — |
| Integrations | Slack, Google Drive, Jira, Confluence, SharePoint, GitHub, Salesforce, Microsoft 365, ServiceNow, Workday, Zendesk, Snowflake ([glean.com](https://www.glean.com/platform/connectors), checked 2026-10-04) | — |
| 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) |

## Companies named on both

Confirmed or observed on each side. The first public proof is not an adoption date.

| Company | First public proof, Harvey |
|---|---|
| [Booking.com](https://www.usedby.ai/companies/booking-com.md) | On or before September 2026 |
| [Deutsche Telekom](https://www.usedby.ai/companies/deutsche-telekom.md) | On or before October 2024 |
| [Grammarly](https://www.usedby.ai/companies/grammarly.md) | On or before August 2025 |

## Published results

Reviewed stories only; usedby did not measure the figures.

- Glean: [Pure Storage](https://www.usedby.ai/case-studies/everpure-glean.md): **30+ min**: “30+ min saved on searches with Glean” (captured by usedby 2026-10-07)
- Glean: [Nile](https://www.usedby.ai/case-studies/nile-glean.md): **4 hours**: “What once took PMs up to 4 hours per document now takes just minutes” (captured by usedby 2026-10-07)
- 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)

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