Chuck Norris

EVDB

Eventful server

Mikael Rogers

OSAF

Chandler client

Mike Douglass

RPI

Bedework server

Cyrus Daboo

Apple

Apple server and client

Wilfredo Sanchez

Apple

Apple server

Simon Vaillancourt

Oracle

Oracle CALDAV

Tomas Hnetila

Kerio

CALDAV server, iCalendar

Stepan Potys

Kerio

CALDAV server, iCalendar

Tony Becker

Marware

Project X CALDAV client, iCalendar

Dave Nutall

Novell

Groupwise

Rand Babcock

Novell

Groupwise, CALDAV server