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Hypothes.is is an open-source software project dedicated to enabling a conversation layer over the entire web. It allows users to annotate web pages, PDFs, and other digital documents, fostering collaborative learning, research, and discussion. As a non-profit organization, Hypothes.is aims to create open, interoperable, and community-driven tools to help people think, learn, and create together.
Serves as the official administrative and legal hub for the non-profit organization, handling grants, fiscal responsibilities, partnerships, and core operational management, supporting a globally distributed team.
As Hypothes.is primarily operates as a distributed, remote-first organization, its physical headquarters is more an administrative point than a central office with unique architectural features. The focus is on digital infrastructure and a global, remote team.
Hypothes.is fosters a remote-first, collaborative, and mission-driven work culture. Employees are passionate about open-source principles, education, and empowering users with tools for critical thinking and discussion. The culture emphasizes autonomy, transparency, and a commitment to their non-profit mission.
The San Francisco address provides a formal base in a key tech and innovation hub, facilitating connections with partners, funders, and the broader tech community, even as the team operates globally and remotely.
Hypothes.is supports a global user base through its open-source web annotation tools. While the team is distributed, its software and services are accessible worldwide, facilitating collaborative annotation for individuals, educational institutions, researchers, and publishers across different countries and languages. Their global presence is defined by user adoption and community engagement rather than physical offices.
3180 18th St, Ste 300
San Francisco
CA
USA
No additional office locations available.
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As of April 2025, Hypothesis' leadership includes:
Hypothesis has been backed by several prominent investors over the years, including:
As a stable non-profit organization with a consistent leadership team, Hypothes.is has not had significant publicly announced executive hires or exits in the past 12 months. The focus remains on mission continuity and project development.
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Hypothes.is primarily uses the [first]@[hypothes.is] email format for its team members. For general inquiries, contact forms on their website are also available.
[first]@[hypothes.is]
Format
dan@hypothes.is
Example
80%
Success rate
web.hypothes.is/blog • October 24, 2023
Hypothes.is announced its availability in D2L Brightspace via a new integration partnership with Vitro, enhancing collaborative annotation capabilities for users of the Brightspace learning platform....more
web.hypothes.is/blog • June 20, 2023
Hypothes.is continues to expand its reach in the scholarly community by welcoming new publisher partners, enabling annotation capabilities across a wider range of academic content....more
web.hypothes.is/blog • February 14, 2024
Hypothesis announced its integration with OpenAthens' federated single sign-on service, simplifying access for users at institutions using OpenAthens for authentication....more
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