Full-Time
Posted on 8/3/2026
Build, test, deploy AI voice agents
$83k - $104k/yr
H1B Sponsorship Available
San Francisco, CA, USA + 1 more
More locations: Redwood City, CA, USA
In Person
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Retell AI provides a platform for developers to build, test, deploy, and monitor AI-powered voice agents. It offers a voice AI API and an agent builder that lets users create custom voice agents to automate and optimize communication processes, designed to handle complex workflows and scale to production-ready levels. The platform works by giving developers an API plus a visual/programmable builder to design agents, integrate them into systems, and manage deployment and monitoring for production use. Its differentiators include an end-to-end lifecycle toolkit for AI voice agents, support for complex call workflows at scale, and ecosystem partnerships (e.g., Data Leaders, Cal.com) that expand integrations. Retell AI’s goal is to help businesses improve their call operations and customer interactions by adding reliable AI-driven voice capabilities through a scalable developer platform.
Company Size
51-200
Company Stage
Seed
Total Funding
$4.7M
Headquarters
Palo Alto, California
Founded
2023
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Health Insurance
Wellness Program
Phone/Internet Stipend
Remote Work Options
Hybrid Work Options
Retell AI, a voice AI platform, has launched Conductor, the first graph-native review system for production voice agents. The AI copilot helps enterprises identify failures, automate testing and continuously improve voice agents for contact centers. Conductor operates within agent workflows, displaying proposed changes directly in the interface and requiring human approval before implementation. Users interact with the system in plain English, enabling teams to shape voice agents without coding. The platform already generates 70% of Retell's simulation tests and executes half of all agent edits. The system features a graph-native review interface, operational intelligence for analysing failed calls, and embedded best practices from thousands of enterprise deployments. Retell AI processes over 30 live calls per second and handles 55 million AI phone calls monthly. Conductor is now available to all Retell customers.
Retell AI, a voice AI platform based in Redwood City, California, has been ranked number one on the San Francisco Business Times' 2026 Best Places to Work in the Bay Area list in the 10-24 employees category, scoring 99.04. The recognition comes as the company has grown annual recurring revenue from $10 million to $60 million over the past year whilst maintaining a lean team. Retell AI's workplace culture emphasises autonomy and outcomes over hours worked, with employees able to work remotely for up to two weeks annually. The company's no-code platform enables enterprises to deploy AI voice agents rapidly. It currently processes over 55 million AI phone calls monthly for clients including the San Antonio Spurs, Motorola and Lenovo, handling more than 30 concurrent calls per second at peak volume.
Retell AI, an AI voice agent platform, has been named to Wing VC's Enterprise Tech 30 2026 list, recognised as one of 10 early-stage companies. The list, compiled with Newcomer, highlights voice AI as a key trend for 2026. Launched in 2024, Retell AI reached $50 million ARR in 2025 and now powers over 50 million AI phone calls monthly. The platform enables corporate call centres to deploy AI voice agents for sales and support across multiple channels, offering human-standard voice quality, sub-600ms latency, and support for over 50 languages. The company's technology allows businesses to build and deploy voice AI agents within days rather than the industry standard of a year or more. Retell AI is HIPAA, SOC2 and GDPR compliant.
Evie Wang, co-founder and chief marketing officer of Retell AI, has been named to Inc.'s 2026 Female Founders 500 list. The annual honour recognises the most dynamic women business leaders in the United States, with this year's honourees collectively generating approximately $12.3 billion in 2025 revenue. Wang led Retell AI's marketing and product strategy during a period of hypergrowth, scaling annual recurring revenue from $8 million to $36 million in eight months across a 21-person team. The AI voice agent platform now handles over 40 million real-time calls monthly for Fortune 500 clients and has achieved over 300% quarter-over-quarter user growth. Under Wang's leadership, Retell AI has been recognised as an a16z Top 50 AI company.
Retell AI secures 4.6M seed funding to revolutionize AI voice calling! Read about our journey to build the future of AI voice agent powered call operations.