At the Wikimedia Foundation, we leverage CiviCRM to maintain millions of records of donors and their contributions. Working with the product and particularly with the community has been a terrific experience. There's nothing quite like two open source organizations working together to meet their respective goals while ultimately strengthening the open source community as a whole.

I work for the Electronic Frontier Foundation. We switched to CiviCRM so that we could be sure that our membership data stays safe, secure, and private. Now we have control over our CRM and can customize it to work for our needs.

Over the past 15 years I've been involved in several open source communities.
CiviCRM is without any doubt the one that has the strongest focus in welcoming "newbies" and letting everyone feel at home here. Another impressive feature is the focus on shipping. No matter what you think of CiviCRM today, you are almost sure that there will be a newer and better version in a few months.

CiviCRM allows us to bring all benefits and capabilities of a large commercial CRM and
donor management system to medium and large non-profits at a fraction of the cost. CiviCRM also allows smaller non-profits to benefit from an integrated solution for donor management, events, bulk email, etc. substantially increasing their effectiveness as compared to managing a variety of nonintegrated software and spreadsheets. Thanks to a strong CiviCRM community, CiviCRM’s functionality continues to advance and CiviCRM’s market continues to grow rapidly.

Its great to work on a project that has a profound impact on non profits. I am very excited about the work we do on CiviCRM which involves building on each other's ideas to create best of breed solutions for non profits. The fact that CiviCRM is an open source project with an amazing community and dedicated developers is an icing on the cake.