The Tor Project is a 501(c)(3) non-profit based in the United States. The official address of the organization is:

The Tor Project
7 Temple Street, Suite A
Cambridge, MA 02139-2403 USA

The organization consists of many volunteers and a few employees. Please don't contact us individually about Tor topics — if you have a problem or question, please look through the contact page for appropriate addresses.

Core Tor People

Sherief Alaa, Support
Arabic translator, worked on videos and documentation and helps respond to users who contacted the support desk.
Jacob Appelbaum, Advocate, Security Researcher, and Developer
Speaks at conferences and gives trainings all over the world to get people excited about Tor, explain how Tor is used in real world situations, and generally explain why anonymity online matters to you. Original developer of ttdnsd, Tor check, Tor DNSEL, and Tor weather site. Runs one of the directory authorities.
Isabela Bagueros, Project Manager
Coordinates Tor's development teams and helps them define their road maps, keeps track of priorities, and ensures that Tor is always thinking “user first” while building things.
Moritz Bartl, Advocate
Manages Zwiebelfreunde (a German non-profit to run exit relays), and coordinates the many similar non-profits that are springing up in other countries. Speaks and organizes in support of Tor and freedoms in Europe and world-wide.
Katherine Bergeron, Executive Administrator
Katherine is streamlining our operations, including fundraising, merchandise management, travel, and other projects.
Griffin Boyce, Developer
Works on Cupcake, a set of browser extensions to let people volunteer to become a Flash Proxy for censored users.
Kathleen Brade, Developer
Part of the Tor Browser team — develops and maintains Tor Launcher and Torbutton.
Arlo Breault, Developer
Rewrote Tor Check so now it can handle all our users, and helps with Flash Proxy and other pluggable transport work. Also working on the Tor Instant Messaging Bundle.
Colin Childs, Translation Coordinator and Support
Helps wrangle Transifex for us, and also helps answer all the users who contact the support desk.
Erinn Clark, Packaging and Build Automation
Erinn is tackling the growing needs for easy to install and configure packages on a variety of operating systems. Also working on automating the build system and producing nightly builds for all operating systems we support. Erinn is also doing some advocacy by talking to audiences at FSCONS,, and various European universites.
Roger Dingledine, Project Leader, Director, Researcher, Interim Executive Director
Original developer of Tor along with Nick Mathewson and Paul Syverson. Leading researcher in the anonymous communications field. Frequent speaker at conferences to advocate Tor and explain what Tor is and can do. Helps coordinate academic researchers. Runs one of the directory authorities. Roger is serving as the Interim Executive Director while Tor searches for a new one to step in.
Kevin Dyer, Developer, Researcher
Main developer of fteproxy, and part of the pluggable transports team. Grad student at Portland State.
Nima Fatemi, Support, Advocate
Farsi team; helps answer all the users who contact the support desk, does training and outreach and works on usability.
David Fifield, Developer, Researcher
Developer and co-inventor of Flash Proxy, and part of the pluggable transports team. Grad student at Berkeley.
Arturo Filastò, Developer
Project leader for OONI, has helped with tor2web, wrote Atlas, and generally helps to evaluate and improve security.
Matt Finkel, Developer
Helps maintain and develop BridgeDB, has helped with OONI, and generally helps on many projects.
Nathan Freitas, Mobile phone hacker
The driving force behind The Guardian Project and Tor on the Android platform in the form of Orbot. He also works on OrLib: an Android library for Tor, and Orweb: A privacy-enhanced mobile browser.
Christian Fromme, Developer
Helped with many Python projects, such as the get-tor email auto-responder,, bridge db, tor weather, tor controller, tor flow, etc.
Aaron Gibson, Developer
Develops OONI, and has helped with Torflow and other Tor services.
Melissa Gilroy, CFO and Internal Audit
Melissa is in charge of Tor's finances, audit compliance, and keeping Tor's financial operations moving along.
Dr. Ian Goldberg, Director, Researcher
Cryptographer, privacy expert, and professor; one of the designers of Off-the-Record Messaging.
David Goulet, Developer
Lead developer of Torsocks 2.0.
Sathyanarayanan Gunasekaran, Developer
Worked on Orbot in Google Summer of Code 2011. Currently develops Compass, and is a grad student at Georgia Tech.
Sebastian Hahn, Developer, Advocate
Improves build and testing automation for TBB. Develops Tor itself. Helps people around the world use and understand Tor better. Generally helps everything run smoothly. Runs one of the directory authorities.
Harmony, Support, Advocate
Writes for Tor Weekly News, the help desk, and the browser manual.
Dr. Nick Hopper, Researcher
Cryptographer, privacy expert, and professor.
intrigeri, Developer
Our main interface with the Tails project.
Isis, Developer
Lead maintainer and developer on BridgeDB. Used to work on OONI.
Dr. Rob Jansen, Researcher
Lead developer for Shadow, a full Tor network simulator that he's using to help us understand and improve Tor network performance.
Dr. Aaron Johnson, Researcher
Works on understanding diversity and trust in Tor network locations. See for example the CCS 2013 paper.
Damian Johnson, Developer
Author of arm, a command-line application that provides real-time status information for Tor relays, and Stem, a controller library for interacting with Tor.
asn, Developer
Developer of Obfsproxy, the Tor side of pluggable transports, and researcher on bridge scanning resistance. Part of the pluggable transports team.
Georg Koppen, Developer
Works on Tor Browser, Torbutton, and our build automation.
Kate Krauss, Director of Communications and Public Policy
Plans Tor's communications strategy and evaluates Tor's possible role in pubic discussions about Tor-related issues.
Pepijn Le Heux, Advocate
Tireless advocate and Tor enthusiast in the Netherlands.
Andreas Lehner, Advocate
Operates a directory authority in Germany with the CCC, and does talks and discussions in support of privacy around Europe.
Bruce Leidl
Lead developer of Orchid, a Tor client in Java.
Dr. Karsten Loesing, Metrics Researcher and Developer
Primary researcher and developer into anonymous metrics which started as a National Science Foundation grant.
Lunar, Support Coordinator and Developer
In addition to leading the support team and helping with Debian packaging, he also helps lead the Tor Weekly News issues.
Ximin Luo, Developer
Flash Proxy developer, and member of the pluggable transports team. Helps with Debian packaging.
Nick Mathewson, Chief Architect, Vice President, Researcher, Director, Interim Deputy Executive Director
One of the three original designers of Tor; does a lot of the ongoing design work, and coordinates and leads ongoing development. He's helping Roger while he serves as Interim Executive Director.
meejah, Developer
Author of txtorcon, a Tor controller library in Twisted.
Ondrej Mikle, Developer
Maintains our RPM packages.
Kelley Misata
Kelley handles press, coordinates Tor talks and outreach, helps with trainings, helps with annual reports, and generally works on community-facing activities.
Dr. Steven Murdoch, Researcher and Developer
Researcher at University College London who works on security, performance, and usability of Tor. Creator of the Tor Browser Bundle (now just called the Tor Browser). You can find out more about his work on his professional website.
Linus Nordberg, Advocate, Developer
Swedish advocate for Tor, anonymous communications research, and employee at NORDUnet. Works on implementing IPv6 in Tor, and helps with build automation. Runs one of the directory authorities.
Matt Pagan, Support
Maintains the FAQ, works on documentation, and helps answer all the users who contact the support desk.
Peter Palfrader, Sysadmin and Developer
Manages the Debian packages, runs one of the directory authorities, runs the website and the wiki, and generally helps out a lot.
Mike Perry, Tor Browser and Tor Performance Developer
Lead developer on Tor Browser, developer of Torbutton, author of TorFlow. Runs one of the directory authorities.
Sina Rabbani, Advocate
Developer and maintainer of Tor Cloud, and does trainings and outreach. Runs one of the directory authorities.
Leif Ryge, Developer
Works on security analysis, designer of "bananaphone" transport, and part of the pluggable transports team.
Runa A. Sandvik, Advocate
Maintains the Tor Translation Portal and the translations for projects such as Vidalia, Torbutton and the website.
Christian Schulz, Developer
Developer and maintainer of Globe, which is on its way to replacing Atlas and eventually Compass.
Wendy Seltzer, Director
Lawyer, cyberlaw professor, and founder of
Andrea Shepard, Developer
Works with Nick as a core Tor developer.
Sukhbir Singh, Developer
Develops and maintains TorBirdy (Torbutton for Thunderbird). Rewrote and maintains Gettor. Working on the Tor Instant Messaging Bundle.
Mark Smith, Developer
Part of the Tor Browser team — develops and maintains Tor Launcher and Torbutton.
Shari Steele, Executive Director
Shari comes to the Tor Project with more than 22 years of experience fighting for Internet freedom at the Electronic Frontier Foundation (EFF), a nonprofit civil liberties organization working for digital rights. Shari started out as a staff attorney at EFF and worked her way up to the executive director job. She currently serves on EFF's board.
Dr. Paul Syverson, Researcher
Inventor of Onion Routing, original designer of Tor along with Roger and Nick, and project leader for original design, development, and deployment of Tor. Currently helps out with research and design.
Noel David Torres Taño
Spanish translator; helps answer all the users who contact the support desk.
Rabbi Rob Thomas, Director
Shares his experience with smoothly running non-profits, and also serves as our Internet governance bureaucracy guru.
Jeremy Todaro, Illustration & Design
Works on the artwork and design for various projects, annual reports, and brochures. His other work can be found at
Nicolas Vigier, Developer
Working on build automation, particularly around the Tor Browser.
vmon, Support, Developer
Farsi translator; helps answer all the users who contact the support desk. Also working on Stegotorus, and part of the pluggable transports team.
Philipp Winter, Researcher
Understands how to manipulate and circumvent Tor network censorship attempts. Main developer of ScrambleSuit, and part of the pluggable transports team. Grad student at Karlstad University in Sweden.
Yawning, Developer
Lead developer on obfsclient, a C++ implementation of obfs2, obfs3, and ScrambleSuit. Part of the pluggable transports team.