OpenAI Startup Fund

OpenAI Startup Fund is a corporate venture capital firm established in 2021 and located in San Francisco, California. It focuses on early-stage investments, primarily targeting startups in the artificial intelligence and machine learning sectors. In addition to AI, the fund seeks to make impact investments in areas such as energy, healthcare, education, and infrastructure. The fund aims to support around ten companies, typically investing USD 1 million in each. By concentrating on innovative technologies and impactful solutions, OpenAI Startup Fund endeavors to foster advancements that can significantly benefit society.

Ian Hathaway

Partner

24 past transactions

Adaptive Security

Series A in 2025
Adaptive Security is a computer network security company that focuses on deepfake attacks and provides cybersecurity services.

Harvey

Series D in 2025
Harvey is an artificial intelligence technology service provider for knowledge workers. It uses AI to answer legal questions and lands cash from OpenAI. The product provides lawyers with a natural language interface for their existing legal workflow. It offers a unified and intuitive interface for all legal workflows, allowing lawyers to describe tasks in plain English instead of using a suite of complex and specialized tools for niche tasks. Harvey was founded in 2022 and is based in Washington, DC.

Speak

Series C in 2024
Speak is an AI-powered language-learning mobile application designed to help users learn English through interactive conversation. The app utilizes advanced speech recognition techniques, allowing users to engage in dialogues about real-world scenarios. This approach enables individuals to improve their English speaking skills by identifying words and phrases, even when spoken with thick accents. Speak's focus on practical conversation enhances the learning experience, making it easier for users to communicate effectively in various contexts.

Kick

Seed Round in 2024
Kick is a self-driving bookkeeping company developing a social banking platform to crowdsource tax deductions and cashback. Its platform helps kick-start online businesses with a modern business bank account, cashback, and authentic affiliate links.

Unify

Series A in 2024
The world’s first warm outbound platform - book 25% more pipeline with half the effort.

Opal

Series B in 2024
Making it better at capturing incredible low-light video. Even in dimly lit room, you’ll get a level of detail and color that wasn’t possible before. The Opal C1 comes with MicMesh™, an array of beamforming microphones that find and focus on the sound of your voice. And with intelligent noise cancellation, every ding, drop and dog bark is filtered out to get an audio experience that clearly speaks for itself.

Heyboss

Seed Round in 2024
AI engineer for non-coders, backed by OpenAI. Get your personal AI engineer to build apps, websites and games without you writing any code.

Speak

Series B in 2024
Speak is an AI-powered language-learning mobile application designed to help users learn English through interactive conversation. The app utilizes advanced speech recognition techniques, allowing users to engage in dialogues about real-world scenarios. This approach enables individuals to improve their English speaking skills by identifying words and phrases, even when spoken with thick accents. Speak's focus on practical conversation enhances the learning experience, making it easier for users to communicate effectively in various contexts.

Ambience Healthcare

Series B in 2024
Ambience Healthcare is a developer of an advanced artificial intelligence-powered medical scribe that aims to enhance clinician efficiency and alleviate burnout. Its Ambience AI operating system features a suite of synergistic applications designed to capture the nuances of clinician-patient conversations in real-time, generating comprehensive notes that integrate seamlessly into electronic medical record workflows. The system employs state-of-the-art speech recognition and custom-built AI to produce documentation in seconds while accommodating individual clinician preferences to reflect their unique style and voice. By utilizing Ambience's technology, healthcare systems can significantly reduce documentation time by an average of 78%, improve coding integrity, and achieve substantial returns on investment, ultimately enabling clinicians to close all their charts by the end of their shifts and achieve a better work-life balance.

Harvey

Series B in 2023
Harvey is an artificial intelligence technology service provider for knowledge workers. It uses AI to answer legal questions and lands cash from OpenAI. The product provides lawyers with a natural language interface for their existing legal workflow. It offers a unified and intuitive interface for all legal workflows, allowing lawyers to describe tasks in plain English instead of using a suite of complex and specialized tools for niche tasks. Harvey was founded in 2022 and is based in Washington, DC.

Ghost Autonomy

Series E in 2023
Ghost Autonomy is a technology company focused on making self-driving accessible to the consumer market. It develops an advanced autonomous driving software platform designed for automakers, leveraging innovative artificial intelligence breakthroughs to ensure safe and scalable highway autonomy. The company's platform includes AI-enabled software that encompasses perception systems, planning and decision-making algorithms, and vehicle control software. This comprehensive approach allows automakers and suppliers to integrate autonomous driving capabilities into their vehicles with minimal hardware modifications, facilitating a more affordable and efficient transition to self-driving technology.

Anysphere

Seed Round in 2023
Anysphere is a company that builds Artificial Intelligence tools and assistants to help humans.

Class Companion

Seed Round in 2023
Class Companion is an AI technology company that develops an intelligent assistant specifically designed for social studies educators. This innovative platform provides professors with the ability to deliver immediate, personalized feedback on written assignments, enhancing the learning experience for students. In addition to facilitating real-time assessment, Class Companion offers features such as instant progress reports and lesson planning support, which help teachers efficiently manage their workloads and improve their overall teaching effectiveness. By focusing on individualized feedback and streamlined assignment management, Class Companion aims to transform the educational landscape for both educators and students.

Milo

Seed Round in 2023
Milo is a family collaboration application designed to support busy parents by streamlining household management tasks. Utilizing advanced large language models, Milo offers a conversational SMS interface that assists with various domestic responsibilities, including babysitting, cleaning, grocery shopping, and meal planning. The application processes complex information such as emails, screenshots, and notes, transforming them into organized and actionable insights. By combining human oversight with cutting-edge technology, Milo aims to alleviate the burdens of daily family management, allowing parents to reclaim their time and mental space.

Anysphere

Seed Round in 2023
Anysphere is a company that builds Artificial Intelligence tools and assistants to help humans.

Speak

Series B in 2023
Speak is an AI-powered language-learning mobile application designed to help users learn English through interactive conversation. The app utilizes advanced speech recognition techniques, allowing users to engage in dialogues about real-world scenarios. This approach enables individuals to improve their English speaking skills by identifying words and phrases, even when spoken with thick accents. Speak's focus on practical conversation enhances the learning experience, making it easier for users to communicate effectively in various contexts.

Harvey

Series A in 2023
Harvey is an artificial intelligence technology service provider for knowledge workers. It uses AI to answer legal questions and lands cash from OpenAI. The product provides lawyers with a natural language interface for their existing legal workflow. It offers a unified and intuitive interface for all legal workflows, allowing lawyers to describe tasks in plain English instead of using a suite of complex and specialized tools for niche tasks. Harvey was founded in 2022 and is based in Washington, DC.

1X

Series A in 2023
1X designs and develops humanoid robots to operate in the physical world. Its robots enable security, retail, logistics, and healthcare companies to deploy safe, capable, and affordable robots to work alongside their employees.

Charles AI

Seed Round in 2023
Charles AI is an aI company.

Harvey

Venture Round in 2022
Harvey is an artificial intelligence technology service provider for knowledge workers. It uses AI to answer legal questions and lands cash from OpenAI. The product provides lawyers with a natural language interface for their existing legal workflow. It offers a unified and intuitive interface for all legal workflows, allowing lawyers to describe tasks in plain English instead of using a suite of complex and specialized tools for niche tasks. Harvey was founded in 2022 and is based in Washington, DC.

Speak

Series B in 2022
Speak is an AI-powered language-learning mobile application designed to help users learn English through interactive conversation. The app utilizes advanced speech recognition techniques, allowing users to engage in dialogues about real-world scenarios. This approach enables individuals to improve their English speaking skills by identifying words and phrases, even when spoken with thick accents. Speak's focus on practical conversation enhances the learning experience, making it easier for users to communicate effectively in various contexts.

Mem

Series A in 2022
The world's first self-organizing workspace.

Milo

Seed Round in 2020
Milo is a family collaboration application designed to support busy parents by streamlining household management tasks. Utilizing advanced large language models, Milo offers a conversational SMS interface that assists with various domestic responsibilities, including babysitting, cleaning, grocery shopping, and meal planning. The application processes complex information such as emails, screenshots, and notes, transforming them into organized and actionable insights. By combining human oversight with cutting-edge technology, Milo aims to alleviate the burdens of daily family management, allowing parents to reclaim their time and mental space.

Io

Io develops AI-powered devices that reimagine how users interact with technology, moving beyond traditional smartphones and screens. In May 2025, OpenAI acquired io in a deal valued at approximately $6.5 billion, marking OpenAI's largest acquisition to date. The acquisition aims to integrate io's hardware design expertise with OpenAI's AI capabilities to create innovative consumer devices. While specific product details remain undisclosed, reports suggest the development of a pocket-sized, screen-free, contextually aware device that is not a phone or wearable glasses.
Spot something off? Help us improve by flagging any incorrect or outdated information. Just email us at support@teaserclub.com. Your feedback is most welcome.