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.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 | 1,413 | ||||
| 2 |
Brennanbrennanit.com.au
An Australian systems integrator with operations in Australia and Asia, serving over 1,400 customers with a focus on digital transformation |
1,059 | |||
| 3 |
Atturraatturra.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 |
1,049 | |||
| 4 |
NEC Australianec.com.au
A global technology company providing world-class solutions and services in IT, networking, communication infrastructure, surveillance systems, and biometrics identification technologies |
883 | |||
| 5 |
AirTrunkairtrunk.com
Rapidly expanding technology provider delivering hyperscale data centers across APJ to meet the needs of influential tech companies |
776 | |||
| 6 |
Interactiveinteractive.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 |
749 | |||
| 7 |
Nexon Asia Pacificnexon.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 |
726 | |||
| 8 |
Macquarie Technology Groupmacquarietechnologygroup.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 |
707 | |||
| 9 |
Cenitexcenitex.vic.gov.au
We provide technology and services to support the Victorian Government in delivering efficient, modern, and secure solutions for the community |
637 | |||
| 10 |
Megaportmegaport.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 |
609 | |||
| 11 |
Axiom Technologiesaxiomtechnologies.com
Providing tailored IT solutions including hardware, software, cloud services, managed support, network security, and professional IT consulting for enterprises. |
557 | |||
| 12 |
Versentversent.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 |
555 | |||
| 13 | 546 | ||||
| 14 |
Compnowcompnow.com.au
Provides device management, procurement, infrastructure, backup, and technical integration services for corporate, government, education sectors, including onsite repairs. |
536 | |||
| 15 |
NEXTDCnextdc.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 |
512 | |||
| 16 |
CITECservices.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 |
508 | |||
| 17 |
Pronto Softwarepronto.net
An Australian developer of award-winning business management and analytics solutions, offering ERP software to streamline processes and unlock insights for global organizations |
500 | |||
| 18 |
CNScns.global
This company specializes in Cloud, Networking, and Security solutions, with a focus on providing IT managed services and support globally |
474 | |||
| 19 |
AC3ac3.com.au
A leading provider of secure cloud services, specializing in simplifying technology challenges and delivering secure cloud solutions to government agencies |
455 | |||
| 20 | 444 | ||||
| 21 | 442 | ||||
Want more companies than this list?This page shows the largest ones only. Connect to Tamtam to see every company that matches, filter by size, industry or growth, and reach their decision-makers. | |||||
| 22 |
Orro Grouporro.group
Australia鈥檚 leading digital infrastructure provider offers end-to-end solutions for over 400 businesses, emphasizing security, efficiency, agility, and personalized service |
406 | |||
| 23 |
Centorrino Technologiesct.com.au
Provider of tailored managed ICT services, specializing in solution design, project delivery, cloud implementation, backup & disaster recovery, connectivity, collaboration, and staff augmentation |
391 | |||
| 24 |
HCLTech - Australia and New Zealandhcltech.com
Global technology leader with over 223,400 employees in 60 countries, offering digital, engineering, cloud, AI services across various industries worldwide |
389 | |||
| 25 |
ETHANethan.global
An Australian company using technology to provide communication, application, and infrastructure solutions globally, with a focus on innovation and future-facing solutions |
351 | |||
| 26 |
Arincoarinco.com.au
Specialists in cloud-native technologies, focusing on enablement, modernization, and innovation to help organizations succeed in the Microsoft cloud |
326 | |||
| 27 |
Logicalis Australialogicalis.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 |
317 | |||
| 28 |
First Focus AUfirstfocus.com.au
Leading managed service provider in Australia, offering end-to-end IT solutions with a focus on reliability, cost-efficiency, and customer satisfaction |
316 | |||
| 29 |
efexefex.com.au
A top provider of Managed Technology Solutions in Australia, offering accessible and straightforward IT services to local businesses nationwide |
311 | |||
| 30 |
Fastmailfastmail.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 |
310 | |||
| 31 |
Synnex Australiasynnex.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 |
306 | |||
| 32 |
FUJIFILM MicroChannelmicrochannel.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 |
261 | |||
| 33 |
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 |
239 | |||
| 34 |
5G Networks Ltd5gnetworks.au
A licensed telecommunications carrier in Australia, offering data networks, cloud hosting, and managed services to mid market, enterprise, and government sectors |
186 | |||
| 35 |
imeiimei.com.au
An Australian communications technology company offering Managed Mobility Services and Unified Communications Solutions, focused on customer service and regional expansion |
185 | |||
| 36 |
ONGC Systemsongc.com.au
Providing comprehensive IT services to businesses, ONGC Systems increases security and stability while lowering maintenance costs through managed services and support |
182 | |||
| 37 |
Intuit Technologiesitechnologies.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 |
182 | |||
| 38 |
ATechatech.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 |
51 | |||
| 39 |
Shockbyteshockbyte.com
A game server provider offering high-quality services at competitive prices, with experienced staff, global support, and a 24-hour money back guarantee |
35 | |||
| 40 |
OWSera InfoTech Pvt Ltdowsinfotech.com
A global IT solutions provider offering professional services and consulting in India and UAE |
23 | |||
| 41 |
EOSphereeosphere.io
EOSphere supports and connects the Australian EOS community as a leading blockchain governance and infrastructure provider for the EOSIO platform |
3 | |||
| 42 |
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. |
n/a | |||
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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 5,556
- Multinational companies in Australia 1,184
- Retail chains in Australia 577
- Financial services firms in Australia 483
- Critical infrastructure operators in Australia 450
- Education providers in Australia 402
- Healthcare providers in Australia 397
- Professional services firms in Australia 377
- Financial Services companies in Australia 373
- Government Administration companies in Australia 351
- Public sector organisations in Australia 326
- Manufacturers in Australia 320
- Companies with a mobile app in Australia 305
- Publicly traded companies in Australia 299
- Hospitals and Health Care companies in Australia 297
- Corporate groups and holding companies in Australia 280
- E-commerce companies in Australia 247
- Retail companies in Australia 243
- Companies with in-house R&D in Australia 235
- IT Services and IT Consulting companies in Australia 215
- Consulting firms in Australia 210
- Non-profit Organizations companies in Australia 190
- Hotel and hospitality groups in Australia 188
- Construction companies in Australia 186