Castor EDC - Castor offers you a user-friendly and fully featured application for electronic data collection.
Attendify - Develop relationships at the events that you attend by creating smaller events with just a few people.
OpenClinica - OpenClinica is an open source clinical trials software.
Eventsquid - Eventsquid is a SaaS-based event management and registration software for corporate and small-scale event planners.
GNU Health - GNU Health is a Free/Libre project for health practitioners, health institutions and governments.
Socio - Connecting with people is just a "phone shake" away!