Having a diverse user base means we have diverse funding sources, too. Our goal is to continue diversifying our funding. To inquire about sponsorship, please email giving(at)torproject.org.

Thank you to all the people and groups who have made Tor possible so far, and thank you especially to the individual volunteers who have made non-financial contributions: coding, testing, documenting, translating, educating, researching, and running the relays that make up the Tor network.

Active Sponsors

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Tens of thousands of individuals like you

Donations from individuals allow us to easily allocate resources to emergent events that require our response. This is extremely important for our work providing essential safety to people in volatile locations.

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Mozilla

Mozilla's mission is to ensure the Internet is a global public resource, open and accessible to all. Several grants from Mozilla, including the Mozilla Open Source Support (MOSS) awards program, helped with the following projects: maintaining TorBirdy, a plugin to connect your email client Thunderbird with Tor; modularization of Tor network codebase making it more accessible, faster, and easier to adopt; significant improvements to OONI Explorer; Open Web Fellowship; Glass Room exhibit; and Mozilla's year-end matching funds that help all of Tor's important work.

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Open Technology Fund

OTF strives to support technology-centric solutions for anyone affected by censorship, surveillance, and internet blocking in order to protect fundamental human rights. These contracts were used to further our work observing and responding to internet censorship around the world and also to help improve transparency and credibility in Tor metrics and measurement.

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Sida - Swedish International Development Cooperation Agency

Sida is a government agency working on behalf of the Swedish parliament and government, with the mission to reduce poverty in the world. Through their work and in cooperation with others, Sida contributes to implementing Sweden's Policy for Global Development.

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Media Democracy Fund

MDF expertise in media and technology policy and extensive partnerships enable them to guide their funding partners through the rapidly changing issues and develop strategies that address priorities in digital equity and rights. These grants were unrestricted, general operating funds for both the Tor Project and the Open Observatory of Network Interference (OONI).

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The Handshake Foundation

Handshake is a decentralized, permissionless naming protocol compatible with DNS where every peer is validating and in charge of managing the root zone with the goal of creating an alternative to existing Certificate Authorities. This grant was unrestricted, general operating funds for the Tor Project.

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National Science Foundation via University of Minnesota

The National Science Foundation funds research and education in most fields of science and engineering. This grant helped us investigate measurement-based design and analysis of censorship circumvention schemes.

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National Science Foundation joint with Georgetown

The National Science Foundation funds research and education in most fields of science and engineering. We are using this grant to study how internet infrastructure attacks apply to anonymity networks, design defenses that improve the resilience against such threats, and transition such defenses to the deployed Tor network.

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National Science Foundation joint with Rochester Institute of Technology

The National Science Foundation funds research and education in most fields of science and engineering. We're using this grant to improve our defense of website fingerprinting in Tor.

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Fastly

Fastly's global edge cloud platform processes, serves, and secures applications as close to users as possible, at the edge of the network. Fastly generously hosts our Tor Browser update downloads that can be fetched anonymously.

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U.S. Department of State Bureau of Democracy, Human Rights, and Labor

The Bureau of Democracy, Human Rights and Labor leads the U.S. efforts to promote democracy, protect human rights and international religious freedom, and advance labor rights globally. We used this funding to develop and deploy Tor Browser for Android.

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U.S. Department of State Bureau of Democracy, Human Rights, and Labor via Harvard

The Bureau of Democracy, Human Rights and Labor leads the U.S. efforts to promote democracy, protect human rights and international religious freedom, and advance labor rights globally. This funding is being used by Tor's OONI team to work toward creating a system that provides real-time measurement of online censorship.

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DARPA via University of Pennsylvania

DARPA’s Extreme DDoS Defense (XD3) program focuses on three broad areas of opportunity to improve resilience against DDoS attacks and aims to thwart DDoS attacks. This contract supports our work addressing denial of service attacks on free and open communication on the internet.

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Institute of Museum and Library Services via New York University

Institute of Museum and Library Services advances, supports, and empowers America's museums, libraries, and related organizations through grantmaking, research, and policy development. This grant helps fund Tor's affiliate project, Library Freedom Institute, which advances the use of practical privacy tools in libraries and their communities through the development of a privacy-focused train-the-trainer program for librarians.

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Team Cymru

Team Cymru has over a decade of experience and expertise at providing unparalleled threat intelligence and insight for security vendors, network defenders, incident response teams, and analysts. Cymru generously donated hardware to us that they keep hosted on their racks.

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Google Season of Docs

Season of Docs is a unique program that pairs technical writers with open source mentors to introduce the technical writer to an open source community and provide guidance while the writer works on a real world open source project. The technical writer in turn provides documentation expertise to the open source organization.

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Craig Newmark Philanthropies

Craig Newmark Philanthropies was created by craigslist founder Craig Newmark to support and connect people and drive broad civic engagement. The organization works to advance people and grassroots organizations that are getting stuff done in areas that include trustworthy journalism, voter protection, gender diversity in technology, and veterans and military families. The organization has provided Tor Project with an unrestricted gift.

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Digital Impact Alliance

The Digital Impact Alliance (DIAL) advances digital inclusion to achieve the Sustainable Development Goals (SDGs), so that all women, men and children can benefit from life-enhancing, mobile-based digital services. DIAL is supporting a project to complete a successful ESR transition for Tor Browser to we ensure stability, security, and usability of this core privacy technology on both desktop and mobile.

Past Sponsors

This sponsors page is based upon un-audited and un-reviewed financial and in-kind donations, contract, and other data.

Further details about our audited and reviewed funding can be found with our Financial Reports.