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

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

Jacob Appelbaum, Advocate, Security Researcher, and Developer

Our main advocate. 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. He is also a Staff Research Scientist at the University of Washington Computer Security and Privacy Research Lab.

Thomas S. Benjamin, Researcher

Anonymous communications and bridge distribution researcher. His other work can be found on his personal website

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, CodeBits.eu, and various European universites.

Roger Dingledine, Project Leader, Director, Researcher

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.

Arturo Filastò, Developer

Develops censorship measurement tools, and generally helps to evaluate security.

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

Christian works on all things python for Tor. He enhanced and maintains a slew of codebases for us, such as the get-tor email auto-responder, check.torproject.org, bridge db, tor weather, tor controller, tor flow, etc.

Aaron Gibson, Developer

Taking over bridgedb development, and hopefully development and maintenance for other Tor services.

Melissa Gilroy, CFO and Internal Audit

With a strong background in non-profit accounting and auditing, Melissa is in charge of Tor's finances, audit compliance, and keeping Tor's financial operations moving along.

Sebastian Hahn, Developer and Advocate

One of the core contributors to Tor development, Sebastian also works on integrating new contributors into the community. After being a student in two Google Summer of Code programs in a row, he became one of the mentors the following year. He also speaks at various conferences about Tor and trains activists to safely use Tor.

Robert Hogan, Developer

Developer for the TorK Tor controller, a privacy-oriented Arora fork, the torsocks scripts, and other useful peripheral tools.

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.

George Kadianakis, Developer

Developer of pluggable transports and bridge-scanning resistance.

Andrew Lewman, Executive Director, Director, press contact

Manages the business operations of The Tor Project, Inc. Plays roles of finance, advocacy, project management, strategy, press, and general support.

Dr. Karsten Loesing, Metrics Researcher and Developer, Project Manager

Primary researcher and developer into anonymous metrics which started as a National Science Foundation grant. Also helps coordinate work for our various sponsor projects.

Nick Mathewson, Chief Architect, Researcher, Director

One of the three original designers of Tor; does a lot of the ongoing design work. One of the two main developers, along with Roger.

Dr. Steven Murdoch, Researcher and Developer

Researcher at the University of Cambridge, currently funded by The Tor Project to improve the security, performance, and usability of Tor. Creator of the Tor Browser Bundle. 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.

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, Torbutton and Tor Performance Developer

Author of TorFlow, a Tor controller that builds paths through the Tor network and measures various properties and behaviors. Developer and maintainer of Torbutton.

Robert Ransom, Developer

Bug catcher and immensely helpful on IRC and the email lists. Looking into hidden service performance and robustness.

Karen Reilly, Development Director

Responsible for fundraising, advocacy, general marketing, policy outreach programs for Tor. She is also available to speak for audiences about the benefits of online anonymity, privacy, and Tor.

Runa A. Sandvik, Developer, Security Researcher, and Translation Coordinator

Maintains the Tor Translation Portal and the translations for a number of projects (such as Vidalia, Torbutton and the website). She also generally helps out with the Torouter project, bridge distribution through instant messaging, and other projects.

Wendy Seltzer, Director

Lawyer, cyberlaw professor, and founder of ChillingEffects.org.

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.

Jeremy Todaro, Illustration & Design

Works on the artwork and design for various projects, annual reports, and brochures. His other work can be found at http://jmtodaro.com/.

Tomás Touceda, Vidalia Developer

Maintenance and new development for Vidalia.