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AC3 vs Optus Business: Which MSP is Better? | The MSP Playbook

Article 2026-06-11

AC3 vs Optus Business

A detailed comparison of two major Australian Managed Service Providers.

Feature AC3 Optus Business
Overall Score3.73.0
TypeCloud / Public SectorTelco / Enterprise
Employees200-3002000-3000
Founded20001991
HeadquartersSydney, NSWSydney, NSW (Parent: Singapore)
RevenuePrivatePrivate
Salary Range$75,000 - $155,000$75,000 - $145,000
SpecialtiesAWS, Azure, Cloud Migration, Government CloudCybersecurity, Cloud, Network Services, Managed Services
CertificationsAWS Partner, Microsoft Partner, VMware Partner, ISO 27001Microsoft Partner, AWS Partner, Cisco Partner, Fortinet Partner
Green FlagsGood work-life balance
Strong cloud focus
Stable employment		Singapore Telecom parent provides stability
Strong telecommunications backbone
Good benefits package
Red FlagsBelow-market salaries
Limited career progression
Can be risk-averse		Telco culture — IT services are secondary
Below-market salaries
Limited career progression
Bureaucratic decision-making
Worker ProsCloud focus
Work-life balance
Stable		Stable employment
Good benefits
Telecommunications expertise
Worker ConsBelow-market pay
Limited progression
Risk-averse		IT services are secondary to telco
Below-market salaries
Bureaucratic culture
Limited career progression

Which MSP Should You Choose?

Both Cloud / Public Sector and Telco / Enterprise have strengths and weaknesses. Your choice depends on your priorities — whether that's career growth, salary, work-life balance, or technical exposure.

Use the side-by-side comparison tool for a deeper look, or check out individual profiles for detailed employee reviews.