Private company
Optalert
Australian business
Optalert is an Australian business founded by sleep expert Dr Murray Johns who invented a personal safety device for transport workers to detect and prevent drowsy driving.2 Wikipedia text CC BY-SA 4.0
Last updated Oct 21, 2026.
Overview
See how the biggest companies compare on our leaderboards
Optalert is an Australian business founded by sleep expert Dr Murray Johns who invented a personal safety device for transport workers to detect and prevent drowsy driving.2
Links
Sources
The numbers on this page point here. Each one links to the record it came from.
- 1WikidataOptalert on Wikidata
- 2WikipediaOptalert on Wikipedia