At the end of the event participants submit to the organizers a list of who they would like to provide their contact information to.
If there is a match, contact information is forwarded to both parties.
The largest speed dating company in Australia is Fastlife. Several online dating services offer online speed dating where users meet online for video, audio or text chats.
Hurrydate was acquired by Spark Networks (Jdate/Christian Mingle). The advantage of online speed dating is that users can go on dates from home as it can be done from any internet enabled computer.
Requirements for each event vary with the organizer.