Company lists · Data refreshed September 2026
Top 25 IT support companies based in Sydney, Australia
RevenueBase identified 115 IT support companies headquartered in Sydney, Australia as of September 2026 and tracks 450 professional contacts across them, including 138 with verified work emails. Melbourne is the largest hub.
This list covers IT support companies headquartered in Sydney, Australia, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 20, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 25 largest IT support companies based in Sydney, Australia
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 52 contacts → | ||||
Partial evidence “REXTECH, headquartered in Australia, is a global leader in the realm of managed IT solutions, covering Applications, Business Process Outsourcing, and IT Infrastructure services.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 2 | 23 contacts → | ||||
Partial evidence “IT Logic provides Managed Services and procurement to clients in any industry pre-dominantly in the small to medium size business space.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 3 | 21 contacts → | ||||
Indirect evidence “At Empire Technologies, our unwavering dedication to delivering technology solutions can help you drive business success.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 4 | 9 contacts → | ||||
Partial evidence “Since 2002, Milnsbridge has been delivering proactive managed IT services that let Sydney businesses focus on growth, not IT headaches.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 5 | 8 contacts → | ||||
Strong evidence “Intello IT is among the best 24/7 IT support companies in Sydney covering all your IT support requirements.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 6 | 8 contacts → | ||||
Partial evidence “Assistech is a Sydney-based IT Services Company, dedicated to providing swift and reliable IT solutions to businesses across various sizes and industries.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 7 | 7 contacts → | ||||
Partial evidence “Platform 24 is a Managed IT Services Provider with a human face.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 8 | 7 contacts → | ||||
Partial evidence “Welcome to Black Text Technology Partners Making IT & Technology Work for Your Business We provide comprehensive managed IT services and cyber security solutions that keep your…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 9 | 7 contacts → | ||||
Partial evidence “BENARM IT combines straightforward technology solutions with top-notch customer service.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 10 | 6 contacts → | ||||
Indirect evidence “H2 Technology is committed to providing exceptional I.T.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 11 | 6 contacts → | ||||
Partial evidence “Inteck IT is a Sydney based Information Technology Managed Services Provider that provides services statewide.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 12 | 6 contacts → | ||||
Indirect evidence “For close to 20 years, RMS Tech has been helping small businesses in Sydney, get the most out of their business technology.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 13 | 6 contacts → | ||||
Strong evidence “IT Support Services” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 14 | 5 contacts → | ||||
Indirect evidence “Specialising in the supply of infrastructure, software, managed services, outsourcing and cloud-based outcomes.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 15 | 5 contacts → | ||||
Strong evidence “The Computer Department has been supporting businesses grow through personalised IT solutions for over 30 years.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 16 | 4 contacts → | ||||
Strong evidence “Azteq has been serving the Sydney area since providing IT Support such as technical helpdesk support, computer support, and consulting to small and medium-sized businesses.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 17 | 4 contacts → | ||||
Strong evidence “A leading IT company that is dedicated to providing personalised and advanced IT support.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 18 | 4 contacts → | ||||
Strong evidence “We are Sydney based, and are here to provide your business with IT Support, solutions and Managed IT services to help your business with all your IT needs.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 19 | 3 contacts → | ||||
Strong evidence “Geekheads provides IT services and IT support for small and medium-sized businesses throughout Sydney and London.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 20 | 3 contacts → | ||||
Partial evidence “PIP, your Total IT Service Provider since 1985.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 21 | 3 contacts → | ||||
Partial evidence “Jardine Thompson iT Pty Ltd is an IT service delivery MSP based out of Crows Nest in Sydney/Australia.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 22 | 3 contacts → | ||||
Strong evidence “What we do: NSIT's affordable IT support services covers all Windows, Linux, and Cisco network support and consulting requirements.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 23 | 3 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 24 | 3 contacts → | ||||
Partial evidence “Layer 1 Technologies provides your business with a single point of contact for all their IT needs, making it easier for them to manage and maintain your technology.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 25 | 2 contacts → | ||||
Partial evidence “From a humble family-owned business to a seasoned partner in IT solutions, Interdata Solutions has woven a 30-year-long story of success and trust with Australian businesses.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: IT support companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names IT support companies.
- Partial evidence
- Its own public description names part of IT support companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name IT support companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 115 IT support companies based in Sydney, Australia
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IT support companies based in Sydney, Australia at a glance
As of Sep 20, 2026Companies by employee count
Email recency for this list is measured across the whole Australia list rather than for Sydney, so it is reported there. Company counts and contact totals on this page are exact for Sydney, over 115 companies.
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among IT support companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in Sydney, Australia whose own description of what they do matches “IT support companies”. Matching reads each company's description, not its industry code or its name.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names IT support companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- What we exclude
- Companies whose own description does not clearly place them among IT support companies, and records with no verified work email. Companies headquartered outside Sydney are excluded even when they keep an office there.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every listed company carries at least one verified work email, 138 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on September 20, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
IT support companies by metro in Australia
- IT support companies in Melbourne119
- IT support companies in Sydney115
- IT support companies in Brisbane54
- IT support companies in Perth44
- IT support companies in Adelaide26
Frequently asked
What is RevenueBase Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names IT support companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
How many IT support companies are there based in Sydney, Australia?
RevenueBase identified 115 IT support companies headquartered in Sydney, Australia as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
REX Technologies, headquartered in Sydney, tops this list with the largest team on record.
Which city has the most IT support companies?
Melbourne leads with 119 headquartered companies, followed by Sydney (115) and Brisbane (54).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 138 verified decision-maker contacts tracked across these 115 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 20, 2026.
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About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.
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