Collabtive - Collabtive is a web-based project management software.
CiviCRM - A Constituent relationship management for the Civic Sector
greenbox - Greenbox is a powerful, secure, and easy to use application-based document collaboration solution that converts your organization into a green & paperless workplace. It helps to Store, Track, Share and Manage the documents.
EspoCRM - EspoCRM is open source CRM (Customer Relationship Management) software that allows you to see, enter and evaluate all your company relationships regardless of the type.
Redmine - Flexible project management web application
Pipeliner CRM - Pipeliner CRM empowers small to medium-sized sales teams to close more deals and lower risk. Implementation and training are a breeze. Mac & Windows.