Worked with CiviCRM as core team developer for more than 2 years. Now we are working as a team and providing service with CiviCRM installation, customization and training. One thing about CiviCRM community is that it's very healthy and really helpful. It's really great that i am part of this community and we want to grow this more and more . Also whatever the problems we are facing there is a solution on forums, or we will get the proper guidelines to solve the issues. Big salute to the CiviCRMcommunity :)

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.

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 enables us and our clients to invest precious funds into configuring the CRM to meet organisational needs, and building innovative new features, rather than paying annual license fees. With access to the source code and tight integration with leading website content management systems, CiviCRM is extremely flexible.

We help many not for profits implement CiviCRM through consultancy, training, configuration, support and custom development. Many of them come from a painful world of old Access databases, multiple spreadsheets and even paper. I love presenting demonstrations to new potential users; many are shocked by the scale of the software. CiviCRM is suitable for so many different organisations as it's been developed to cover so many bases off the back of community calls.

I maintain our own CiviCRM client database; it feeds into our drupal intranet to provide me with all the information I need at a click. I would be lost without it!