Marcus is a founder and General Partner of Telstra Ventures. Prior to this he held various executive and senior roles in Telstra, Citigroup, nscglobal and Honeywell in Australia and the UK.

Marcus invests in disruptive enterprise software, telecoms and cyber-security entrepreneurs that are starting to scale their companies. Investments made to date include Anomali, AttackIQ, Auth0, Cohere Technologies, CloudKnox, Cofense, Crowdstrike, Elastica (ACQ:BlueCoat), Headspin, ipSCAPE, Matrixx Software, Dimmi (ACQ:TripAdvisor), vArmour, Zimperium, Subspace and ReThought Insurance.

Marcus received an MBA from the University of Oxford, UK and a Bachelor of Engineering (Electrical and Electronic, honors) from the University of Adelaide, Australia.