Company lists · Data refreshed September 2026

Top 25 Infrastructure outsourcing companies based in Australia

RevenueBase identified 539 infrastructure outsourcing companies headquartered in Australia as of September 2026 and tracks 8,108 professional contacts across them, including 2,462 with verified work emails. Sydney is the largest hub.

This list covers infrastructure outsourcing 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 28, 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 28, 2026 86% judged on-target in blind review
539Companies
8,108Contacts tracked
2,462Verified emails
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The 25 largest infrastructure outsourcing companies based in Australia

Ranked by team size
Top 25 of 539 infrastructure outsourcing companies based in Australia, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to infrastructure outsourcing companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceMelbourne, AustraliaHQ checked Sep 28, 20261,001-5,000552 contacts →

Indirect 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 28, 2026
2Partial evidenceSydney, AustraliaHQ checked Sep 28, 2026501-1,000349 contacts →

Partial evidence

“hammerjack is an Australian and Philippine-owned offshore outsourcing and Knowledge Process Outsourcing (KPO) provider.”

Source: RevenueBase Database · checked Sep 28, 2026
3Indirect evidenceArundel, AustraliaHQ checked Sep 28, 2026n/a166 contacts →

Indirect 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 28, 2026
4Indirect evidenceScoresby, AustraliaHQ checked Sep 28, 202651-200147 contacts →

Indirect evidence

“Blue Connections IT is a leading Australian-owned provider of best-in-class IT solutions and managed services.”

Source: RevenueBase Database · checked Sep 28, 2026
5Indirect evidenceDocklands, AustraliaHQ checked Sep 28, 202651-200126 contacts →

Indirect evidence

“iGreenData is a next-generation technology company with a focus on Cloud, Data, and Digital first solutions which are changing how technology provides value to businesses…”

Source: RevenueBase Database · checked Sep 28, 2026
6Indirect evidenceNorwest, AustraliaHQ checked Sep 28, 202651-200119 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 28, 2026
7Indirect evidenceWarabrook, AustraliaHQ checked Sep 28, 202651-200118 contacts →

Indirect 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 28, 2026
8Indirect evidenceWest Leederville, AustraliaHQ checked Sep 28, 202651-200101 contacts →

Indirect evidence

“Netlink Group was founded in 1994 with a vision to be a market leader in outsourced technology & communications services.”

Source: RevenueBase Database · checked Sep 28, 2026
9Indirect evidenceNorwest, AustraliaHQ checked Sep 28, 202611-5096 contacts →

Indirect evidence

“Welcome to Platinum Technology.”

Source: RevenueBase Database · checked Sep 28, 2026
10Indirect evidenceNorth Sydney, AustraliaHQ checked Sep 28, 202651-20076 contacts →

Indirect evidence

“CNS takes pride in our ability to deliver successful solutions to our customers.”

Source: RevenueBase Database · checked Sep 28, 2026
11Indirect evidenceMacquarie Park, AustraliaHQ checked Sep 28, 2026201-50075 contacts →

Indirect 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 28, 2026
12Indirect evidenceParramatta, AustraliaHQ checked Sep 28, 2026n/a72 contacts →

Indirect 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 28, 2026
13Indirect evidenceHawthorn East, AustraliaHQ checked Sep 28, 202611-5066 contacts →

Indirect evidence

“ITConnexion has provided high-quality innovative and customised technology solutions for our clients since 2003.”

Source: RevenueBase Database · checked Sep 28, 2026
14Partial evidenceAustraliaHQ checked Sep 28, 202651-20062 contacts →

Partial evidence

“Established in 2016, Tech Source Managed Services is an Outsourcing Company which not only works on major IT projects of other companies but also handles operational matters and…”

Source: RevenueBase Database · checked Sep 28, 2026
15Indirect evidenceSydney, AustraliaHQ checked Sep 28, 202651-20061 contacts →

Indirect evidence

“We help businesses reduce costs, boost efficiency, and scale faster, without the HR burden.”

Source: RevenueBase Database · checked Sep 28, 2026
16Indirect evidenceNorth Sydney, AustraliaHQ checked Sep 28, 202611-5055 contacts →

Indirect evidence

“eNerds was founded in to innovate & improve the way IT Services are delivered to SMB businesses sized 20-500 staff.”

Source: RevenueBase Database · checked Sep 28, 2026
17Indirect evidenceSt Leonards, AustraliaHQ checked Sep 28, 2026501-1,00054 contacts →

Indirect evidence

“As one of the most experienced end-to-end IT services providers in Australia, Atturra Managed Services has been delivering over 40 years of exceptional value to our clients across…”

Source: RevenueBase Database · checked Sep 28, 2026
18Strong evidenceSydney, AustraliaHQ checked Sep 28, 202651-20052 contacts →

Strong 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 28, 2026
19Partial evidenceAdelaide, AustraliaHQ checked Sep 28, 202651-20051 contacts →

Partial evidence

“Oracle, Microsoft & AWS Experts for your Cloud, Applications, Databases, and IT Infrastructure.”

Source: RevenueBase Database · checked Sep 28, 2026
20Partial evidenceNorth Sydney, AustraliaHQ checked Sep 28, 202651-20050 contacts →

Partial evidence

“Since 1987, mcr has been taking the pain and effort out of information technology for Australian businesses, sourcing and implementing services and infrastructure solutions…”

Source: RevenueBase Database · checked Sep 28, 2026
21Indirect evidenceMelbourne, AustraliaHQ checked Sep 28, 202651-20050 contacts →

Indirect evidence

“Source Central is an end to end technology company that is able to understand your business requirements and Build, Operate and Manage the solution delivery.”

Source: RevenueBase Database · checked Sep 28, 2026
22Indirect evidenceNorth Sydney, AustraliaHQ checked Sep 28, 202611-5050 contacts →

Indirect evidence

“We’re ICT Networks.”

Source: RevenueBase Database · checked Sep 28, 2026
23Indirect evidenceCanberra, AustraliaHQ checked Sep 28, 202651-20048 contacts →

Indirect evidence

“Netier is a service-focused company that works with businesses to manage all aspects of their IT environment.”

Source: RevenueBase Database · checked Sep 28, 2026
24Indirect evidenceSydney, AustraliaHQ checked Sep 28, 202611-5047 contacts →

Indirect evidence

“IT Integrity helps organisations harness technology to drive growth, efficiency, and competitive advantage.”

Source: RevenueBase Database · checked Sep 28, 2026
25Indirect evidenceSlacks Creek, AustraliaHQ checked Sep 28, 202651-20046 contacts →

Indirect evidence

“What we do TechPath empowers businesses and the people they employ through innovative IT strategies.”

Source: RevenueBase Database · checked Sep 28, 2026

Showing 25 of 539 infrastructure outsourcing companies based in Australia

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Infrastructure outsourcing companies based in Australia at a glance

As of Sep 28, 2026
30.4%Verified-email coverage
15.0Average contacts per company
1-10Median size (employees)
15.0%Largest-city concentration · Sydney
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
278
11-50
196
51-200
49
201-500
9
501-1,000
4
1,001-5,000
2

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 539 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 infrastructure outsourcing 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 “infrastructure outsourcing 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 infrastructure outsourcing 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 infrastructure outsourcing 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, 2,462 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 28, 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.

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 infrastructure outsourcing 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 infrastructure outsourcing companies are there based in Australia?

RevenueBase identified 539 infrastructure outsourcing 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 infrastructure outsourcing companies?

Sydney leads with 81 headquartered companies, followed by Melbourne (58) and Brisbane (29).

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 2,462 verified decision-maker contacts tracked across these 539 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 28, 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.