Retell AI
Retell AI provides the infrastructure for building production-grade AI voice agents. Their platform handles real-time speech, turn detection, and natural conversation flow with sub-500ms latency. Companies use Retell to automate inbound calls, surveys, and outbound campaigns.
- Location
- San Francisco, USA
- Raised
- $4.5M
- Stage
- Seed
- Founded
- 2023
- Category
- AI
- Funding
- VC-backed
- Team
- 1–10
Funding figures as of Jul 2025 · not independently verified
Founders of Retell AI
- Evie Wang
- James Su
Investors backing Retell AI
- Y Combinator
Frequently asked questions
What does Retell AI do?
Retell AI provides the infrastructure for building production-grade AI voice agents. Their platform handles real-time speech, turn detection, and natural conversation flow with sub-500ms latency. Companies use Retell to automate inbound calls, surveys, and outbound campaigns.
Where is Retell AI based?
Retell AI is based in San Francisco, USA.
When was Retell AI founded?
Retell AI was founded in 2023.
How much has Retell AI raised?
Retell AI has raised $4.5M in their Seed round as of Jul 2025.
Who founded Retell AI?
Retell AI was founded by Evie Wang, James Su.
Who has invested in Retell AI?
Retell AI is backed by Y Combinator.
How Retell AI would pitch themselves
○ Auto-generated01Target customer
Companies + developers adopting AI in their stack — from indie builders to enterprise ML teams working on build, test, and deploy voice ai agents.
02Problem they solve
Retell AI provides the infrastructure for building production-grade AI voice agents. Their platform handles real-time speech, turn detection, and natural conversation flow with sub-500ms latency. Companies use Retell to… The category has historically been served by tools that miss the modern workflow this product is built around.
03Key differentiator
Retell AI differentiates on build, test, and deploy voice ai agents. Backed by Y Combinator, $4.5M raised — the company has resources + validation to compound this thesis. Founded by Evie Wang + team.
04Go-to-market strategy
Early-stage GTM — typically product-led growth (free tier or low-friction onboarding) paired with founder-led sales for the first 100 customers. Heavy content marketing + community presence on Twitter/X, LinkedIn, and category-specific Slack groups.