MSP Pie lists 19 providers offering Cisco in Sydney. For context: cisco is a technology vendor whose products some providers specialise in deploying and managing. Comparing providers here usually means checking their actual partner tier or certification level with this vendor, not just that they mention it.
The most common specialisms across the list in Sydney are Cyber security (6), Managed IT and helpdesk (5), Cloud and hosting (5), Microsoft Azure (4), Cisco (4). In total, 32 distinct specialisms are represented across this group of providers in Sydney. Founding years among them range from 1985 to 2016. They are based across 13 different suburbs. Of the 19, 7 have an office in Sydney -- the others cover it as a service area. 10 of the 19 operate from more than one office across Australia.