2 providers on MSP Pie offer Zscaler in Australia. Some background: zscaler is a technology vendor whose products some providers specialise in deploying and managing.
Ericom is operating since 1990 (36 years), and is listed on MSP Pie for businesses in Australia. It is a specialist in Managed IT and helpdesk, Cyber security, ISO 27001. Ericom, serving businesses in Australia, is based in Surry Hills. For businesses in Australia, it is worth noting Ericom is operating from 8 offices across Australia. HDIT serves businesses in Australia and is a specialist in AI and automation, Cloud and hosting, Modern workplace. It is based in North Parramatta.