# Managed service providers headquartered in Australia
Tamtam tracks 42 managed service providers headquartered in Australia. This list ranks all of them by number of employees on LinkedIn, led by Data#3, Brennan and Atturra. Their median headcount is 442. Half of them were founded in 2003 or later. The most common headquarters are Melbourne (7), Sydney (6) and North Sydney (4).
These Australian managed service providers are primarily large IT services and consulting firms, many of which were founded between the late 1990s and early 2010s. They offer a range of solutions including cloud, security, data analytics, and digital transformation. Notable companies include Data#3, a technology solutions provider focused on cloud and security, and Brennan, an Australian systems integrator. Atturra offers end-to-end IT transformation services, while NEC Australia provides global technology solutions in IT, networking, and communication infrastructure.
AirTrunk is a rapidly expanding technology provider delivering hyperscale data centers. Macquarie Technology Group specializes in data center, cloud, cyber security, and telecom services. A common pattern among these companies is their focus on providing comprehensive IT and digital transformation services to a diverse client base, ranging from mid-market to government organizations, with a strong presence in major Australian cities like Sydney and Melbourne.
π¦πΊ Australia Β· 42 companies Β· Updated Nov 12, 2026
| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [Data#3](https://www.tamtam.ai/c/data-3) (data3.com)
A technology solutions provider with a focus on cloud, security, data analytics, and managed services, committed to a sustainable future | IT Services and IT Consulting | π¦πΊ Toowong | 1,413 | 1977 |
| 2 | [Brennan](https://www.tamtam.ai/c/brennan) (brennanit.com.au)
An Australian systems integrator with operations in Australia and Asia, serving over 1,400 customers with a focus on digital transformation | IT Services and IT Consulting | π¦πΊ Barangaroo | 1,059 | 1997 |
| 3 | [Atturra](https://www.tamtam.ai/c/atturra) (atturra.com)
An Australian-based advisory and IT solutions provider offering end-to-end transformation services, including advisory, cloud services, data integration, and managed services, to clients worldwide | IT Services and IT Consulting | π¦πΊ Sydney | 1,049 | |
| 4 | [NEC Australia](https://www.tamtam.ai/c/nec-australia) (nec.com.au)
A global technology company providing world-class solutions and services in IT, networking, communication infrastructure, surveillance systems, and biometrics identification technologies | IT Services and IT Consulting | π¦πΊ Docklands | 883 | 1969 |
| 5 | [AirTrunk](https://www.tamtam.ai/c/airtrunk) (airtrunk.com)
Rapidly expanding technology provider delivering hyperscale data centers across APJ to meet the needs of influential tech companies | Telecommunications | π¦πΊ North Sydney | 776 | 2015 |
| 6 | [Interactive](https://www.tamtam.ai/c/interactive) (interactive.com.au)
Leading Australian IT service provider specializing in Cloud, Cyber Security, Data Centres, Business Continuity, Hardware Maintenance, and Digital Workplace solutions with 600+ expert professionals | IT Services and IT Consulting | π¦πΊ Port Melbourne | 749 | 1988 |
| 7 | [Nexon Asia Pacific](https://www.tamtam.ai/c/nexon-asia-pacific) (nexon.com.au)
An award-winning digital consulting partner offering end-to-end solutions in security, cloud, and digital services to mid-market, enterprise, and government organizations | IT Services and IT Consulting | π¦πΊ Sydney | 726 | |
| 8 | [Macquarie Technology Group](https://www.tamtam.ai/c/macquarie-technology-group) (macquarietechnologygroup.com)
An Australian company specializing in data center, cloud, cyber security, and telecom services for mid-large businesses and government clients Known for exceptional customer service | IT Services and IT Consulting | π¦πΊ Sydney | 707 | |
| 9 | [Cenitex](https://www.tamtam.ai/c/cenitex) (cenitex.vic.gov.au)
We provide technology and services to support the Victorian Government in delivering efficient, modern, and secure solutions for the community | IT Services and IT Consulting | π¦πΊ Melbourne | 637 | 2008 |
| 10 | [Megaport](https://www.tamtam.ai/c/megaport) (megaport.com)
This company provides easy and flexible connectivity through a Software Defined Network, connecting data centers globally for fast, secure, and on-demand access to service providers | Technology, Information and Internet | π¦πΊ Fortitude Valley | 609 | 2013 |
| 11 | [Axiom Technologies](https://www.tamtam.ai/c/axiom-technologies) (axiomtechnologies.com)
Providing tailored IT solutions including hardware, software, cloud services, managed support, network security, and professional IT consulting for enterprises. | IT Services and IT Consulting | π¦πΊ Melbourne | 557 | 2014 |
| 12 | [Versent](https://www.tamtam.ai/c/versent) (versent.com.au)
Australian technology company specializing in cloud native applications, data platforms, and services, with a customer-first approach and a focus on quality outcomes | IT Services and IT Consulting | π¦πΊ Melbourne | 555 | 2014 |
| 13 | [CDC](https://www.tamtam.ai/c/cdc-canberra) (cdc.com)
Leading developer, owner, and operator of secure data facilities in Australia and Aotearoa New Zealand, ensuring national security and progress through state-of-the-art infrastructure solutions | IT Services and IT Consulting | π¦πΊ Canberra | 546 | 2007 |
| 14 | [Compnow](https://www.tamtam.ai/c/compnow) (compnow.com.au)
Provides device management, procurement, infrastructure, backup, and technical integration services for corporate, government, education sectors, including onsite repairs. | IT Services and IT Consulting | π¦πΊ Notting Hill | 536 | 1990 |
| 15 | [NEXTDC](https://www.tamtam.ai/c/nextdc) (nextdc.com)
Australian technology company offering innovative data centre outsourcing solutions and connectivity services, with a national network of secure, high-performance facilities for enterprise and government clients | IT Services and IT Consulting | π¦πΊ Brisbane City | 512 | 2010 |
| 16 | [CITEC](https://www.tamtam.ai/c/citec) (services.citec.com.au)
Primary technology service provider for Queensland Government, offering ICT services such as security, data center, cloud, network, managed IT, and professional services | IT Services and IT Consulting | π¦πΊ Brisbane | 508 | 1964 |
| 17 | [Pronto Software](https://www.tamtam.ai/c/pronto-software) (pronto.net)
An Australian developer of award-winning business management and analytics solutions, offering ERP software to streamline processes and unlock insights for global organizations | Software Development | π¦πΊ Melbourne | 500 | 1976 |
| 18 | [CNS](https://www.tamtam.ai/c/cns-north-sydney) (cns.global)
This company specializes in Cloud, Networking, and Security solutions, with a focus on providing IT managed services and support globally | IT Services and IT Consulting | π¦πΊ North Sydney | 474 | 1997 |
| 19 | [AC3](https://www.tamtam.ai/c/ac3) (ac3.com.au)
A leading provider of secure cloud services, specializing in simplifying technology challenges and delivering secure cloud solutions to government agencies | IT Services and IT Consulting | π¦πΊ Haymarket | 455 | 1999 |
| 20 | [DUG](https://www.tamtam.ai/c/dug) (dug.com)
An ASX-listed technology company specializing in analytical software development, big-data services, and high-performance computing, offering innovative solutions and bespoke support globally | Technology, Information and Internet | π¦πΊ West Perth | 444 | |
| 21 | [IREN](https://www.tamtam.ai/c/iren) (iren.com)
A leading data center business using 100% renewable energy to power the future | Technology, Information and Internet | π¦πΊ Sydney | 442 | 2018 |
| 22 | [Orro Group](https://www.tamtam.ai/c/orro-group) (orro.group)
Australiaβs leading digital infrastructure provider offers end-to-end solutions for over 400 businesses, emphasizing security, efficiency, agility, and personalized service | IT Services and IT Consulting | π¦πΊ Sydney | 406 | |
| 23 | [Centorrino Technologies](https://www.tamtam.ai/c/centorrino-technologies) (ct.com.au)
Provider of tailored managed ICT services, specializing in solution design, project delivery, cloud implementation, backup & disaster recovery, connectivity, collaboration, and staff augmentation | IT Services and IT Consulting | π¦πΊ Coburg | 391 | 2006 |
| 24 | [HCLTech - Australia and New Zealand](https://www.tamtam.ai/c/hcltech-australia-and-new-zealand) (hcltech.com)
Global technology leader with over 223,400 employees in 60 countries, offering digital, engineering, cloud, AI services across various industries worldwide | IT Services and IT Consulting | π¦πΊ North Sydney | 389 | 1997 |
| 25 | [ETHAN](https://www.tamtam.ai/c/ethan) (ethan.global)
An Australian company using technology to provide communication, application, and infrastructure solutions globally, with a focus on innovation and future-facing solutions | IT Services and IT Consulting | π¦πΊ Macquarie Park | 351 | 2002 |
| 26 | [Arinco](https://www.tamtam.ai/c/arinco) (arinco.com.au)
Specialists in cloud-native technologies, focusing on enablement, modernization, and innovation to help organizations succeed in the Microsoft cloud | IT Services and IT Consulting | π¦πΊ Melbourne | 326 | 2019 |
| 27 | [Logicalis Australia](https://www.tamtam.ai/c/logicalis-australia) (logicalis.com)
The company specializes in helping organizations succeed in a digital-first world by providing technology expertise and services for optimizing operations and empowering employees | IT Services and IT Consulting | π¦πΊ Richmond | 317 | |
| 28 | [First Focus AU](https://www.tamtam.ai/c/first-focus-au) (firstfocus.com.au)
Leading managed service provider in Australia, offering end-to-end IT solutions with a focus on reliability, cost-efficiency, and customer satisfaction | IT Services and IT Consulting | π¦πΊ Mascot | 316 | 2003 |
| 29 | [efex](https://www.tamtam.ai/c/efex) (efex.com.au)
A top provider of Managed Technology Solutions in Australia, offering accessible and straightforward IT services to local businesses nationwide | IT Services and IT Consulting | π¦πΊ Sydney | 311 | 2013 |
| 30 | [Fastmail](https://www.tamtam.ai/c/fastmail) (fastmail.com)
Privacy-focused, reliable email provider with user-friendly design and open-source innovations, empowering customers worldwide to reclaim control of personal information and boost productivity | IT Services and IT Consulting | π¦πΊ Melbourne | 310 | 1999 |
| 31 | [Synnex Australia](https://www.tamtam.ai/c/synnex-australia) (synnex.com.au)
Leading ICT services provider in Australia and New Zealand, working with 70+ vendors and 6,000 partners to deliver IT solutions and services for SMBs, system integrators, VARs, and more | IT Services and IT Consulting | π¦πΊ Oakleigh South | 306 | 1997 |
| 32 | [FUJIFILM MicroChannel](https://www.tamtam.ai/c/fujifilm-microchannel) (microchannel.com.au)
Award-winning business technology solutions provider empowering customers in Australia, New Zealand, Fiji, Singapore, and South East Asia Specializing in ERP, CRM, BI, Retail, E-Commerce, and IT services | IT Services and IT Consulting | π¦πΊ North Sydney | 261 | 1995 |
| 33 | [TIMG (The Information Management Group)](https://www.tamtam.ai/c/timg-the-information-management-group) (timg.com)
A leading provider of comprehensive data management solutions including secure storage, cloud backup, disaster recovery, document management, digitization, and IT services | IT Services and IT Consulting | π¦πΊ Strathfield South | 239 | 1999 |
| 34 | [5G Networks Ltd](https://www.tamtam.ai/c/5g-networks-ltd) (5gnetworks.au)
A licensed telecommunications carrier in Australia, offering data networks, cloud hosting, and managed services to mid market, enterprise, and government sectors | Telecommunications | π¦πΊ Melbourne | 186 | 2016 |
| 35 | [imei](https://www.tamtam.ai/c/imei) (imei.com.au)
An Australian communications technology company offering Managed Mobility Services and Unified Communications Solutions, focused on customer service and regional expansion | IT Services and IT Consulting | π¦πΊ Frenchs Forest | 185 | 2000 |
| 36 | [ONGC Systems](https://www.tamtam.ai/c/ongc-systems) (ongc.com.au)
Providing comprehensive IT services to businesses, ONGC Systems increases security and stability while lowering maintenance costs through managed services and support | IT Services and IT Consulting | π¦πΊ Arundel | 182 | 2003 |
| 37 | [Intuit Technologies](https://www.tamtam.ai/c/intuit-technologies) (itechnologies.com.au)
Tasmanian ICT company with over 20 years of experience, offering tailored services to businesses with a focus on value, expertise, and client satisfaction | IT Services and IT Consulting | π¦πΊ Hobart | 182 | |
| 38 | [ATech](https://www.tamtam.ai/c/atech) (atech.host)
Specializing in mission critical websites and cloud hosting, providing tailored, fully managed services to government, corporate, and tech start-up clients with a vendor agnostic approach | IT Services and IT Consulting | π¦πΊ Brisbane | 51 | 2000 |
| 39 | [Shockbyte](https://www.tamtam.ai/c/shockbyte) (shockbyte.com)
A game server provider offering high-quality services at competitive prices, with experienced staff, global support, and a 24-hour money back guarantee | Computer Networking Products | π¦πΊ Docklands | 35 | 2013 |
| 40 | [OWSera InfoTech Pvt Ltd](https://www.tamtam.ai/c/owsera-infotech-pvt-ltd) (owsinfotech.com)
A global IT solutions provider offering professional services and consulting in India and UAE | IT Services and IT Consulting | π¦πΊ Bankstown | 23 | 2013 |
| 41 | [EOSphere](https://www.tamtam.ai/c/eosphere) (eosphere.io)
EOSphere supports and connects the Australian EOS community as a leading blockchain governance and infrastructure provider for the EOSIO platform | IT Services and IT Consulting | π¦πΊ Perth | 3 | 2018 |
| 42 | [Netly PTY LTD.](https://www.tamtam.ai/c/netly-pty-ltd) (netly.com.au)
It specializes in media, entertainment, and secure web hosting, providing diverse online channels and reliable technology news to its audience. | IT Services and IT Consulting | π¦πΊ Perth | | 2017 |
## How this list is built
Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Nov 12, 2026.
## More company lists in Australia
- [The largest companies in Australia](https://www.tamtam.ai/l/largest-companies-australia) (5,556)
- [Multinational companies in Australia](https://www.tamtam.ai/l/multinational-companies-australia) (1,184)
- [Retail chains in Australia](https://www.tamtam.ai/l/retail-chains-australia) (577)
- [Financial services firms in Australia](https://www.tamtam.ai/l/financial-services-firms-australia) (483)
- [Critical infrastructure operators in Australia](https://www.tamtam.ai/l/critical-infrastructure-operators-australia) (450)
- [Education providers in Australia](https://www.tamtam.ai/l/education-companies-australia) (402)
- [Healthcare providers in Australia](https://www.tamtam.ai/l/healthcare-providers-australia) (397)
- [Professional services firms in Australia](https://www.tamtam.ai/l/professional-services-firms-australia) (377)
- [Financial Services companies in Australia](https://www.tamtam.ai/l/financial-services-companies-australia) (373)
- [Government Administration companies in Australia](https://www.tamtam.ai/l/government-administration-companies-australia) (351)
- [Public sector organisations in Australia](https://www.tamtam.ai/l/public-sector-organisations-australia) (326)
- [Manufacturers in Australia](https://www.tamtam.ai/l/manufacturers-australia) (320)
- [Companies with a mobile app in Australia](https://www.tamtam.ai/l/companies-with-mobile-app-australia) (305)
- [Publicly traded companies in Australia](https://www.tamtam.ai/l/publicly-traded-companies-australia) (299)
- [Hospitals and Health Care companies in Australia](https://www.tamtam.ai/l/hospitals-and-health-care-companies-australia) (297)
- [Corporate groups and holding companies in Australia](https://www.tamtam.ai/l/holding-companies-australia) (280)
- [E-commerce companies in Australia](https://www.tamtam.ai/l/ecommerce-companies-australia) (247)
- [Retail companies in Australia](https://www.tamtam.ai/l/retail-companies-australia) (243)
- [Companies with in-house R&D in Australia](https://www.tamtam.ai/l/r-and-d-companies-australia) (235)
- [IT Services and IT Consulting companies in Australia](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-australia) (215)
- [Consulting firms in Australia](https://www.tamtam.ai/l/consulting-firms-australia) (210)
- [Non-profit Organizations companies in Australia](https://www.tamtam.ai/l/non-profit-organizations-companies-australia) (190)
- [Hotel and hospitality groups in Australia](https://www.tamtam.ai/l/hospitality-groups-australia) (188)
- [Construction companies in Australia](https://www.tamtam.ai/l/construction-companies-australia) (186)
## The same list elsewhere
- [Managed service providers in the world](https://www.tamtam.ai/l/managed-service-providers-in-the-world) (3,468)
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Source: https://www.tamtam.ai/l/managed-service-providers-australia