Company lists · Data refreshed September 2026

Top 25 Outsource IT companies based in Australia

Name: Outsource IT companies based in Australia
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 570 companies tracked

RevenueBase identified 570 outsource IT companies headquartered in Australia as of September 2026 and tracks 11,011 professional contacts across them, including 2,360 with verified work emails. Sydney is the largest hub.

This list covers outsource IT 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 21, 2026 86% judged on-target in blind review

570Companies

11,011Contacts tracked

2,360Verified emails

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The 25 largest outsource IT companies based in Australia

Ranked by team size

Top 25 of 570 outsource IT companies based in Australia, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to outsource IT 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	TOA Global	Indirect evidence	Southport, AustraliaHQ checked Sep 21, 2026	1,001-5,000	3,912 contacts →
	Indirect evidence “Don’t wait until understaffing eats away at your productivity and client satisfaction.” Source: RevenueBase Database · checked Sep 21, 2026
2	Satellite Office	Indirect evidence	Sydney, AustraliaHQ checked Sep 21, 2026	1,001-5,000	611 contacts →
	Indirect evidence “At Satellite Office, we help businesses build high-performing offshore teams in the Philippines, enabling you to scale quickly, reduce costs, and boost efficiency.” Source: RevenueBase Database · checked Sep 21, 2026
3	Offshore Business Processing	Indirect evidence	Melbourne, AustraliaHQ checked Sep 21, 2026	501-1,000	404 contacts →
	Indirect evidence “We are OBP.” Source: RevenueBase Database · checked Sep 21, 2026
4	Hammerjack	Partial evidence	Sydney, AustraliaHQ checked Sep 21, 2026	501-1,000	349 contacts →
	Partial evidence “hammerjack is an Australian and Philippine-owned offshore outsourcing and Knowledge Process Outsourcing (KPO) provider.” Source: RevenueBase Database · checked Sep 21, 2026
5	DBA Advisory	Partial evidence	The Rocks, AustraliaHQ checked Sep 21, 2026	201-500	304 contacts →
	Partial evidence “DBA is a premium professional services outsourcing company based in Australia and the Philippines.” Source: RevenueBase Database · checked Sep 21, 2026
6	24x7 Direct	Partial evidence	Wheelers Hill, AustraliaHQ checked Sep 21, 2026	51-200	196 contacts →
	Partial evidence “Looking for a reliable outsourcing partner that can help your business grow?” Source: RevenueBase Database · checked Sep 21, 2026
7	Serole Technologies	Partial evidence	Sydney, AustraliaHQ checked Sep 21, 2026	201-500	190 contacts →
	Partial evidence “Serole Technologies is a leading provider of end-to-end IT services and solutions for Large Enterprises to Small to Medium companies.” Source: RevenueBase Database · checked Sep 21, 2026
8	Ongc Systems	Partial evidence	Arundel, AustraliaHQ checked Sep 21, 2026	n/a	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, 2026
9	FILTA	Indirect evidence	Brisbane, AustraliaHQ checked Sep 21, 2026	501-1,000	162 contacts →
	Indirect evidence “Most agencies that come to us aren't failing.” Source: RevenueBase Database · checked Sep 21, 2026
10	ADAPS	Partial evidence	Melbourne, AustraliaHQ checked Sep 21, 2026	201-500	156 contacts →
	Partial evidence “Adaps is Australia’s oldest privately owned IT services company.” Source: RevenueBase Database · checked Sep 21, 2026
11	Acquire BPO	Partial evidence	Melbourne, AustraliaHQ checked Sep 21, 2026	5,001-10,000	107 contacts →
	Partial evidence “Acquire BPO is an award-winning, global business outsourcer with 14 locations across Australia, the Dominican Republic, the Philippines and the United States.” Source: RevenueBase Database · checked Sep 21, 2026
12	Joii Workstream	Partial evidence	Underwood, AustraliaHQ checked Sep 21, 2026	51-200	79 contacts →
	Partial evidence “Joii Workstream is a Business Process Outsourcing company that specialises in construction industry office-based support.” Source: RevenueBase Database · checked Sep 21, 2026
13	Itsm Corporation	Partial evidence	Macquarie Park, AustraliaHQ checked Sep 21, 2026	201-500	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, 2026
14	Itconnexion	Indirect evidence	Hawthorn East, AustraliaHQ checked Sep 21, 2026	11-50	66 contacts →
	Indirect evidence “ITConnexion has provided high-quality innovative and customised technology solutions for our clients since 2003.” Source: RevenueBase Database · checked Sep 21, 2026
15	Optibpo	Indirect evidence	Sydney, AustraliaHQ checked Sep 21, 2026	501-1,000	65 contacts →
	Indirect evidence “At optiBPO, we specialise in providing tailored offshoring solutions by helping our clients set up dedicated offshore operations in the Philippines, seamlessly integrating with…” Source: RevenueBase Database · checked Sep 21, 2026
16	Onehalf Offshore Business Solutions	Partial evidence	St. Kilda, AustraliaHQ checked Sep 21, 2026	201-500	65 contacts →
	Partial evidence “Founded on the idea of revolutionizing business operations with the best possible outsourcing systems for an inexpensive rate, Onehalf allows big businesses and even small…” Source: RevenueBase Database · checked Sep 21, 2026
17	Intergy Consulting	Partial evidence	North Sydney, AustraliaHQ checked Sep 21, 2026	51-200	63 contacts →
	Partial evidence “Since 2004 Intergy Consulting has been helping clients realise their business vision through delivering innovative, high quality, customised IT solutions.” Source: RevenueBase Database · checked Sep 21, 2026
18	Maugle Data Processing Center PTY LTD	Partial evidence	Salamander Bay, AustraliaHQ checked Sep 21, 2026	201-500	63 contacts →
	Partial evidence “Maugle Data Processing Center (MDPC) was established in August, 2015 as a Business Process Outsourcing (BPO) company that specialises in providing managed operations and services…” Source: RevenueBase Database · checked Sep 21, 2026
19	Tech Source Managed Services	Strong evidence	AustraliaHQ checked Sep 21, 2026	51-200	62 contacts →
	Strong 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 21, 2026
20	Orakor	Indirect evidence	Sydney, AustraliaHQ checked Sep 21, 2026	51-200	61 contacts →
	Indirect evidence “We help businesses reduce costs, boost efficiency, and scale faster, without the HR burden.” Source: RevenueBase Database · checked Sep 21, 2026
21	Enerds	Partial evidence	North Sydney, AustraliaHQ checked Sep 21, 2026	11-50	55 contacts →
	Partial 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 21, 2026
22	Australian Outsource Desk INC	Indirect evidence	Mildura, AustraliaHQ checked Sep 21, 2026	11-50	53 contacts →
	Indirect evidence “We are an Australian Owned and Managed BPO Company with Over 20 years’ experience until the Company decided to engage with Offshoring.” Source: RevenueBase Database · checked Sep 21, 2026
23	REX Technologies	Strong evidence	Sydney, AustraliaHQ checked Sep 21, 2026	51-200	52 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 21, 2026
24	The Outsource PRO	Partial evidence	Perth, AustraliaHQ checked Sep 21, 2026	51-200	51 contacts →
	Partial evidence “The Outsource Pro (TOP) provides managed offshore professionals and technical support teams to Australian businesses.” Source: RevenueBase Database · checked Sep 21, 2026
25	Source Central Partners	Indirect evidence	Melbourne, AustraliaHQ checked Sep 21, 2026	51-200	50 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 21, 2026

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: outsource IT 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 outsource IT companies.
Partial evidence: Its own public description names part of outsource IT companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name outsource IT 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 570 outsource IT companies based in Australia

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Outsource IT companies based in Australia at a glance

As of Sep 21, 2026

21.4%Verified-email coverage

19.3Average contacts per company

11-50Median size (employees)

16.7%Largest-city concentration · Sydney

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

274

11-50

198

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

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 570 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 outsource IT 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 “outsource IT 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 outsource IT 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 outsource IT 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, 2,360 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.

Outsource IT 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 outsource IT 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 outsource IT companies are there based in Australia?

RevenueBase identified 570 outsource IT 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?

TOA Global, headquartered in Southport, tops this list with the largest team on record.

Which city has the most outsource IT companies?

Sydney leads with 95 headquartered companies, followed by Melbourne (83) and Brisbane (31).

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 2,360 verified decision-maker contacts tracked across these 570 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.