ClinCapture - ClinCapture is the only validated electronic data capture software available to sponsors and CROs...

Attendify - Develop relationships at the events that you attend by creating smaller events with just a few people.

ClinicMED - Clinic MED, an open source application for Professional Clinic Management licensed under GPL

Aventri - Aventri's event management technology has helped thousands of brands globally transform the way they plan and execute meetings and events while tracking and improving their business objectives.

GNU Health - GNU Health is a Free/Libre project for health practitioners, health institutions and governments.

Eventzilla - Eventzilla lets you sell tickets online and manage attendees from one integrated application.