These IT services companies in Sydney are mainly mid-sized to large firms, with a strong focus on digital transformation, cloud services, and cybersecurity. Companies like Deloitte Australia offer professional services including cyber security and tech integration, while Planit specializes in quality engineering. NCS Group Australia provides consulting and digital solutions, and Atturra offers end-to-end IT transformation services.
The data shows a concentration of firms providing comprehensive IT support and strategic consulting. Many companies, such as NRI Australia & New Zealand and Nexon Asia Pacific, offer a broad range of services from strategy and infrastructure to managed IT and digital consulting. Macquarie Technology Group focuses on data center, cloud, and cyber security.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
Deloitte Australiadeloitte.com.au
A forward-thinking professional services firm focused on cyber security, virtual reality, digital marketing, and tech integration across various industries, aiming to make a meaningful impact |
7,674 | |||
| 2 |
Planitplanit.com
Global leader in quality engineering and assurance solutions, empowering businesses to enhance software quality and delivery processes through continuous growth and excellence |
1,931 | |||
| 3 |
NCS Group Australiancs.co
Leading technology services firm in Australia, specializing in consulting, digital, and applications Part of APAC region's NCS Group, with a focus on creating impactful solutions |
1,293 | |||
| 4 |
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 | |||
| 5 |
NRI Australia & New Zealandnri-anz.com
Provider of transformative digital solutions through strategy, consulting, infrastructure, and managed IT services, with global reach and a passionate, customer-focused team |
846 | |||
| 6 |
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 | |||
| 7 |
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 | |||
| 8 |
Ambitionambitiongrouplimited.com
Specialized international recruitment firm with diverse expertise in various industries, providing career opportunities and personalized service to clients and candidates worldwide |
684 | |||
| 9 | 618 | ||||
| 10 |
FTS Groupftsg.com.au
An advisory technology consulting firm helping over 600 clients in public and private sectors leverage technology for growth and success |
501 | |||
| 11 |
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 | |||
| 12 |
Tech Domaintechdomain.com.au
Global IT support provider with 24/7 access to 5000+ trained engineers worldwide Offers tailored solutions for break-fix support, project resources, and smart hands-on assistance |
399 | |||
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. | |||||
| 13 |
Noviginovigi.com.au
Specializing in data and technology solutions for the financial services industry, we provide expertise to solve complex problems and deliver value reliably |
378 | |||
| 14 |
DXC Red Rockdxc.to
Leader in Oracle consulting and managed services in Australia and New Zealand, offering dynamic technology solutions for businesses globally |
340 | |||
| 15 |
efexefex.com.au
A top provider of Managed Technology Solutions in Australia, offering accessible and straightforward IT services to local businesses nationwide |
311 | |||
| 16 |
Cognizant Serviancognizant.com
Specializing in cloud and data consulting, merging two expert teams to deliver digital transformation services for leading brands in the ANZ region |
283 | |||
| 17 |
Digital Alchemydigitalalchemy.global
A data-driven marketing company founded in 2003, now the largest in Asia Pacific, helping brands stay ahead, customer-centric, and relevant |
229 | |||
| 18 |
Altis Consultingaltisconsulting.com
Consulting firm specializing in data and analytics, delivering strategies, managed services, and insights to clients across Australia and New Zealand. |
205 | |||
| 19 |
Cloudwerxcloudwerx.co
A Salesforce partner in APAC providing advisory, implementation, integration, managed services, and AI solutions to enhance businesses globally |
201 | |||
| 20 |
Mav3rikmav3rik.com
A strategic implementation partner specializing in Salesforce and MuleSoft, offering advisory, architecture, design, and delivery services for public sector and healthcare industries |
88 | |||
| 21 |
ProQuest Consultingproquestit.com
Leading Salesforce implementation partner in Australia, specializing in transforming businesses through automated processes and customer-centric innovations for a competitive edge |
47 | |||
| 22 |
Cognitumcognitum.eu
Innovative software development house providing end-to-end IT services for Fortune 100 companies and startups, with expertise in AI, ML, and data science |
36 | |||
| 23 |
Clarityclarityint.com
Global leader in providing operational management solutions for telecom, utilities and more, focusing on automation, optimization, monetization, data analytics, and customer engagement |
15 | |||
| 24 |
Argo Logicargologic.com.au
Salesforce implementation partner specializing in customer lifecycle engagement solutions for financial services, property, education, and automotive industries Integrating CRM with various tools |
11 | |||
| 25 |
CloudActivecloudactive.com.au
CloudActive is a Salesforce Implementation Partner offering digital transformation services through expert teams, cost effective delivery, and certified Salesforce implementation and support |
10 | |||
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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 11, 2026.
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