# Sesame AI

Startup profile on Capital Atlas: https://capitalatlas.ai/startups/sesame-ai

- Industry: Software
- Headquarters: South San Francisco, US
- Website: www.sesame.com/
- Total disclosed funding: $250M
- Latest round: Series B (Oct 21, 2025)
- Investors on record: 4

## About

Founded in 2023 and based in South San Francisco, US, Sesame AI, Inc. is a technology firm that specializes in voice companion solutions designed to enhance users' daily interactions through advanced artificial intelligence features. The firm develops innovative voice companion technologies. In October 2025, Sesame AI, Inc. raised USD 250 million in Series B funding co-led by Spark Capital and Sequoia Capital, with participation from Signal Rank Corp. and other unspecified investors. The founder has a history of launching other ventures, although specific details about prior companies are not available. Sesame AI Inc. specializes in innovative voice companion technology aimed at enhancing daily living through advanced artificial intelligence. Their primary offerings include a conversational voice assistant designed to serve as a personal companion, facilitating user activities such as organization, information retrieval, and daily task management. This product is engineered to be worn throughout the day, providing users with high-quality audio interaction while seamlessly integrating into their daily lives. The company targets a broad demographic, including tech-savvy individuals seeking enhanced productivity as well as professionals in various sectors who can benefit from real-time assistance. Sesame's products are marketed primarily in North America and Europe, focusing on urban areas where demand for innovative technology solutions is rapidly growing. The revenue model for Sesame AI Inc. is primarily built around direct-to-consumer sales and subscription services. Customers typically purchase the voice companion device, with the option of subscribing to premium features for enhanced functionality and personalized experiences. These subscriptions may include regular software updates, additional voice customization options, and expanded access to third-party applications. The company may also engage in partnerships with retail and wholesale distributors to broaden their market reach and facilitate product availability. Pricing plans are structured to appeal to a wide audience, ensuring accessibility while supporting the continued development of their technology and services. Flagship products include their conversational voice assistant, which forms the core of their offering. The company will use the October 2025 funding to launch its conversational AI beta and support development of smart glasses with embedded AI agents.

## Funding rounds

- Series B, Oct 21, 2025, $250M — Hong Shan, Spark Capital, Signal Rank Corp.
- Series A, Feb 27, 2025 — Hong Shan, Andreessen Horowitz

## Investors

- Hong Shan — Series A, Series B
- Andreessen Horowitz (https://capitalatlas.ai/funds/andreessen-horowitz) — Series A
- Spark Capital — Series B
- Signal Rank Corp. — Series B