# Retell AI

Retell AI provides a platform for building, testing, deploying and monitoring AI voice agents that answer, qualify and book calls on phone lines. Teams design call flows on a drag-and-drop canvas, run QA on up to 100% of calls, and build custom analytics from post-call metrics. Agents can be deployed for inbound calls, outbound campaigns, web and SMS, and can hand calls to human agents.

Page: https://slateindex.ai/brand/retell-ai · data of 2026-11-03

## Facts

- Founded: 2023
- Headquarters: Redwood City, California
- Employees: 51–200
- Company type: Private, venture-backed
- Latest funding: Seed
- Deployment: Cloud platform, with enterprise on-premises deployment available
- Best for: Businesses that run high call volumes in healthcare, insurance, financial services, logistics and similar fields, and teams that want to build and change voice agents themselves.
- Compliance: HIPAA, SOC 2 Type II, GDPR, ISO 27001

## Products

- Retell AI voice agents: AI voice agents that answer, qualify, book and follow up on real phone calls, with routing, transfers, IVR navigation and CRM write-back.
- Retell Assure: Automated QA product for voice AI calls, launched November 2025 and available from January 2026.
- Retell chat agents: AI-powered conversations across web and in-app chat.

## Rankings

| Category | Rank | Visibility | Mentions |
|---|---|---|---|
| AI Agents | 42 of 80 | 2.0 | 3 |

## By engine

| Engine | Visibility | Mention rate |
|---|---|---|
| chatgpt | 3.1 | 3.7% |
| google_ai_mode | 2.0 | 3.7% |
| perplexity | 0.9 | 3.7% |

## Definitions

- Visibility (0–100): how often and how high AI answers name the brand, weighted by position.
- Mention rate: share of collected AI answers that name the brand.
- Share of voice: the brand's mentions as a share of all brand mentions in the category.
- Citation authority: share of answers naming the brand that cite the brand's own site.

Cite as: SlateIndex, “Retell AI AI visibility profile”, https://slateindex.ai/brand/retell-ai, data of 2026-11-03. Licence: CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/).