# Parloa vs Sierra: who uses which

On usedby, 36 companies use Parloa and 50 use Sierra. 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 2026-10-07: 79 of 86 public lines checked.

## Side by side

|  | [Parloa](https://www.usedby.ai/tools/parloa.md) | [Sierra](https://www.usedby.ai/tools/sierra.md) |
|---|---|---|
| Public customers | 36 | 50 |
| Confirmed | 24 | 37 |
| Observed | 12 | 13 |
| Signals (job posts) | 0 | 0 |
| Top industries of customers | Insurance & InsurTech (7), IT Services & System Integration (4), Accounting & Audit (2) | Fintech & Payments (5), Telecommunications (3), Banking & Mortgages (2) |
| Category | Customer Service Automation | Customer Service Automation |
| Security | ISO 27001, SOC 2 Type II, PCI DSS, HIPAA ([parloa.com](https://www.parloa.com/platform/enterprise-security-governance/), checked 2026-10-05) | — |
| Data processing terms | A data processing agreement is available. ([trust.parloa.com](https://trust.parloa.com/), checked 2026-10-05) | A data processing agreement is available. ([sierra.ai](https://sierra.ai/privacy-policy), checked 2026-10-04) |
| Integrations | Zendesk, Salesforce, Microsoft Dynamics 365, ServiceNow ([parloa.com](https://www.parloa.com/platform/integrations/), checked 2026-10-05) | — |

## Published results

Reviewed stories only; usedby did not measure the figures.

- Parloa: [MAINGAU](https://www.usedby.ai/case-studies/maingau-parloa.md): **20%**: “MAINGAU achieved its goal of an additional 20% automation rate within a short period of time” (published 2026-05-13)
- Parloa: [HSE](https://www.usedby.ai/case-studies/hse-parloa.md): **3 million**: “AI-driven execution of up to 3 million calls per year” (published 2025-07-24)
- Sierra: [RunBuggy](https://www.usedby.ai/case-studies/runbuggy-sierra.md): **1,000 hours**: “Nearly 1,000 hours per month returned to exception handling and high-value work” (published 2026-02-03)
- Sierra: [Next](https://www.usedby.ai/case-studies/next-sierra.md): **6 weeks**: “Time to live 6 weeks” (published 2026-02-25)

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