We're helping to fill a giant public need. Until now, there was no free & open-source Web tool for sending an email to all of your members of Congress. Unbelievable, right? With OpenCongress, this important feature for constituent communication is now available on a not-for-profit website.
We have a good start, but we need your help to keep OpenCongress running.
We provide OpenCongress as a public resource, free of charge and independent from any political party. Your donation directly supports our tiny non-profit team and keeps our massive database available on the open Web.
We have big plans to make this site an even better service for contacting your members of Congress, but we don't have money from commercial sponsors. We're incorporated as a public charity in order to provide the best possible foundation for a more open and inclusive democracy.
Donate Now
Donations to the 501(c)3 non-profit Participatory Politics Foundation, makers of OpenCongress, are tax-deductible.
Larger donors and charitable foundations: with additional resources, OpenCongress can become much more powerful. We have the platform, the ideas, and the experience -- our limiting factor is money for open-source web development time. Are you in a position to give $1,000 or more to help us build amazing new tools for deliberative democracy? Get in touch!
We truly need more money to support our public-mission work.
Our Principles
- Free to everyone
- Open-source
- Open standards
- Not-for-profit
- Non-partisan
- Copyleft
- For Net Neutrality
- For Fair Elections
- Against Systemic Corruption

