MSP Pie lists 67 providers offering Virtualisation in Australia. For context: virtualisation is a service category IT providers offer as part of their overall support. Comparing providers for this service usually means checking exactly what's included in the engagement, not the category label alone.
The most common specialisms across the list in Australia are Cyber security (12), Managed IT and helpdesk (11), Backup and disaster recovery (9), Cloud and hosting (9), Essential Eight (8). In total, 45 distinct specialisms are represented across this group of providers in Australia. Founding years among them range from 1979 to 2015. They are based across 53 different suburbs. 14 of the 67 operate from more than one office across Australia.