Company lists · Data refreshed September 2026
Top 25 Tx IT services companies based in Australia
RevenueBase identified 1,487 tx IT services companies headquartered in Australia as of September 2026 and tracks 12,674 professional contacts across them, including 5,468 with verified work emails. Sydney is the largest hub.
This list covers tx IT services companies headquartered in 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 21, 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 tx IT services companies based in Australia
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 552 contacts → | ||||
Partial evidence “Axiom Technologies was founded to meet technological needs for Australia's medium & large scale enterprises providing end to end IT solution which delivers tailored solutions…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 2 | 383 contacts → | ||||
Indirect evidence “CITEC is the primary technology service provider for the Queensland Government delivering both whole-of-government and agency specific ICT services.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 3 | 365 contacts → | ||||
Indirect evidence “AC3 is a leading Australian-owned and operated technology services provider helping organisations across government, healthcare, financial services, and critical infrastructure…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 4 | 222 contacts → | ||||
Indirect evidence “For over 28 years, The Missing Link has been a trusted technology partner to enterprise, government and high-growth businesses across Australia.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 5 | 172 contacts → | ||||
Partial evidence “Intuit Technologies is a Tasmanian-owned national IT services provider, with offices across Tasmania, Victoria, and Queensland.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 6 | 166 contacts → | ||||
Partial evidence “ONGC Systems provides businesses with comprehensive IT services, that automate and streamline operations, reduce risk and increase stability while lowering the cost of system…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 7 | 155 contacts → | ||||
Indirect evidence “Explore new frontiers, uncover value from core business and build secure, scalable digital foundations through our transformative Technology Solutions.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 8 | 147 contacts → | ||||
Partial evidence “Blue Connections IT is a leading Australian-owned provider of best-in-class IT solutions and managed services.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 9 | 119 contacts → | ||||
Indirect evidence “At Exigo Tech, we believe that technology should be simple, accessible, and a catalyst for business success.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 10 | 118 contacts → | ||||
Partial evidence “Diamond IT is an Australian technology partner supporting organisations since 1996 with solutions that improve business outcomes, reduce risk, and enable sustainable growth.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 11 | 115 contacts → | ||||
Partial evidence “Innovative Managed Services: Bridging Assets, Systems, and Security Welcome to Renew IT, your trusted partner in delivering comprehensive managed services, systems integration…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 12 | 114 contacts → | ||||
Partial evidence “IT to smile about.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 13 | 111 contacts → | ||||
Indirect evidence “New Era delivers Technology Solutions that securely connect people, places, and information in a rapidly changing digital world.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 14 | 102 contacts → | ||||
Partial evidence “We are your IT & Cyber Security partners.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 15 | 96 contacts → | ||||
Partial evidence “Advance Vision Technology (AVTech) is a leading managed service provider with a focus on cyber-security, ‘making IT Happen’ for our customers since 1992.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 16 | 96 contacts → | ||||
Indirect evidence “Welcome to Platinum Technology.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 17 | 93 contacts → | ||||
Indirect evidence “Australia’s cyber-first Managed Service Provider and true technology partner.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 18 | 90 contacts → | ||||
Partial evidence “With a proven track record of 30 years, experteq is a proudly Australian IT company that combines the strengths of two storied brands – TAS and Experteq – to deliver outstanding…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 19 | 89 contacts → | ||||
Indirect evidence “Oreta is an Australian technology company helping organisations cut through complexity and achieve real business outcomes across cloud, cybersecurity, networking, and digital…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 20 | 87 contacts → | ||||
Partial evidence “Secure Agility is a Australian-based technology partner specialising in secure managed IT services for NSW government, enterprise and mid-market organisations.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 21 | 85 contacts → | ||||
Partial evidence “For over 25 years we have been designing and implementing IT strategies that leverage technology to achieve business objectives for small businesses, through to enterprise…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 22 | 76 contacts → | ||||
Indirect evidence “CNS takes pride in our ability to deliver successful solutions to our customers.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 23 | 75 contacts → | ||||
Partial evidence “Telestar manages the IT and communications of businesses and governments.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 24 | 75 contacts → | ||||
Partial evidence “ITSM is your trusted partner in strategic IT services, specializing in solutions for large enterprises and mid-sized organizations.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 25 | 72 contacts → | ||||
Partial evidence “Active IT is a team of qualified and experienced computer professionals dedicated to providing fast and reliable IT services and solutions for small-to-medium size businesses in…” Source: RevenueBase Database · checked Sep 21, 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: tx IT services 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 tx IT services companies.
- Partial evidence
- Its own public description names part of tx IT services companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name tx IT services 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 1,487 tx IT services companies based in Australia
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Tx IT services companies based in Australia at a glance
As of Sep 21, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for Australia, so it is reported there. Company counts and contact totals on this page are exact for Australia, over 1,487 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 tx IT services 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 Australia whose own description of what they do matches “tx IT services 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 tx IT services 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 tx IT services companies, and records with no verified work email. Companies headquartered outside Australia 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, 5,468 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 21, 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.
Tx IT services companies by metro
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 tx IT services 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 tx IT services companies are there based in Australia?
RevenueBase identified 1,487 tx IT services companies headquartered in 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?
Axiom Technologies, headquartered in Melbourne, tops this list with the largest team on record.
Which city has the most tx IT services companies?
Sydney leads with 156 headquartered companies, followed by Melbourne (147) and Brisbane (66).
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 5,468 verified decision-maker contacts tracked across these 1,487 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 21, 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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