# Attio vs ZoomInfo: who uses which

On usedby, 20 companies use Attio and 67 use ZoomInfo. 1 company uses both, including Legora. 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: 85 of 87 public lines checked.

## Side by side

|  | [Attio](https://www.usedby.ai/tools/attio.md) | [ZoomInfo](https://www.usedby.ai/tools/zoominfo.md) |
|---|---|---|
| Public customers | 20 | 67 |
| Confirmed | 8 | 47 |
| Observed | 12 | 15 |
| Signals (job posts) | 0 | 5 |
| Top industries of customers | DevTools & Infrastructure (2), Investment & VC (2), Artificial Intelligence (1) | Marketing Tech (6), Data & Analytics (5), HR & Recruiting (5) |
| Category | Sales Prospecting & Enrichment | Sales Prospecting & Enrichment |
| Security | ISO 27001 ([trust.attio.com](https://trust.attio.com/), checked 2026-10-04) | — |
| Data processing terms | A data processing agreement is available. ([attio.com](https://attio.com/legal/privacy), checked 2026-10-04) | — |
| Integrations | Typeform, Zapier, Slack, Aircall, Mailchimp, ChatGPT, Claude, Segment, Gmail, Outlook, Stripe, Zoom ([attio.com](https://attio.com/apps), checked 2026-10-04) | 6sense, 8x8, Aircall, Allegrow, Alysio, Amazon Chime, Amazon Connect, Amazon Quick, Athean, Avaya, BDO Digital ([zoominfo.com](https://www.zoominfo.com/integrations), checked 2026-10-06) |
| Free trial | — | Free trial or free plan available. ([zoominfo.com](https://www.zoominfo.com/pricing), checked 2026-10-06) |

## Companies named on both

Confirmed or observed on each side.

| Company |
|---|
| [Legora](https://www.usedby.ai/companies/legora.md) |

## Published results

Reviewed stories only; usedby did not measure the figures.

- Attio: [Passionfroot](https://www.usedby.ai/case-studies/passionfroot-attio.md): **25%**: “generating an extra 25% in GMV per month, thanks to Attio” (captured by usedby 2026-10-02)
- Attio: [Taskrabbit](https://www.usedby.ai/case-studies/taskrabbit-attio.md): **90%**: “90% team adoption overnight, up from sub 50%” (captured by usedby 2026-10-02)
- ZoomInfo: [Deal IQ](https://www.usedby.ai/case-studies/deal-iq-zoominfo.md): **1900%**: “Annual revenue is up by more than 1900%” (published 2025-07-29)
- ZoomInfo: [monday.com](https://www.usedby.ai/case-studies/monday-com-zoominfo.md): **4X**: “4X faster program launch: what previously took nearly four months for 8 teams now takes just one month for 22 teams.” (published 2026-04-29)

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