Company lists · Data refreshed September 2026

Top 25 Outsource IT companies based in Sydney, Australia

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

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 95 companies tracked

RevenueBase identified 95 outsource IT companies headquartered in Sydney, Australia as of September 2026 and tracks 1,788 professional contacts across them, including 420 with verified work emails. Sydney is the largest hub.

This list covers outsource IT 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 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

95Companies

1,788Contacts tracked

420Verified emails

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The 25 largest outsource IT companies based in Sydney, Australia

Ranked by team size

Top 25 of 95 outsource IT companies based in Sydney, 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	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
2	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
3	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
4	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
5	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
6	IT Integrity	Partial evidence	Sydney, AustraliaHQ checked Sep 21, 2026	11-50	47 contacts →
	Partial evidence “IT Integrity helps organisations harness technology to drive growth, efficiency, and competitive advantage.” Source: RevenueBase Database · checked Sep 21, 2026
7	Gammer Group	Partial evidence	Sydney, AustraliaHQ checked Sep 21, 2026	11-50	25 contacts →
	Partial evidence “Simplifying IT solutions that work for your business.” Source: RevenueBase Database · checked Sep 21, 2026
8	Cool Pixels	Partial evidence	Sydney, AustraliaHQ checked Sep 21, 2026	11-50	14 contacts →
	Partial evidence “Cool Pixels is an outsourcing company in Australia that provides Virtual Assistants from the Philippines at just $7/hour.” Source: RevenueBase Database · checked Sep 21, 2026
9	Rawtech Group	Indirect evidence	Sydney, AustraliaHQ checked Sep 21, 2026	11-50	11 contacts →
	Indirect evidence “RawTech Group is a leading technology solutions provider specialising in innovative and customised services for businesses across various sectors.” Source: RevenueBase Database · checked Sep 21, 2026
10	Werk OUT	Partial evidence	Sydney, AustraliaHQ checked Sep 21, 2026	11-50	9 contacts →
	Partial evidence “At Werkout, our core mission is to identify gaps in your operations; areas where efficiency can be improved; or tasks where your time can be saved through Outsourcing / Offshoring…” Source: RevenueBase Database · checked Sep 21, 2026
11	Cloud Earth PTY LTD	Partial evidence	Sydney, AustraliaHQ checked Sep 21, 2026	11-50	8 contacts →
	Partial evidence “Cloud Earth is a 100% Australian-owned IT Services company based in Sydney with an international reach.” Source: RevenueBase Database · checked Sep 21, 2026
12	Assistech PTY LTD	Partial evidence	Sydney, AustraliaHQ checked Sep 21, 2026	1-10	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 21, 2026
13	Execuhub	Indirect evidence	Sydney, AustraliaHQ checked Sep 21, 2026	11-50	7 contacts →
	Indirect evidence “ExecuHub runs premium specialist teams in Manila for businesses that think in years, not hours.” Source: RevenueBase Database · checked Sep 21, 2026
14	RMS Tech	Indirect evidence	Sydney, AustraliaHQ checked Sep 21, 2026	11-50	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 21, 2026
15	Absolute IT Consulting PTY LTD	Partial evidence	Sydney, AustraliaHQ checked Sep 21, 2026	1-10	5 contacts →
	Partial evidence “Absolute IT is a leading provider of comprehensive IT services and solutions.” Source: RevenueBase Database · checked Sep 21, 2026
16	Iman Business Solutions	Indirect evidence	Sydney, AustraliaHQ checked Sep 21, 2026	51-200	5 contacts →
	Indirect evidence “Celebrating a decade of Information solutions to businesses.” Source: RevenueBase Database · checked Sep 21, 2026
17	Team Computing Australia PTY LTD	Partial evidence	Sydney, AustraliaHQ checked Sep 21, 2026	11-50	5 contacts →
	Partial evidence “Specialising in the supply of infrastructure, software, managed services, outsourcing and cloud-based outcomes.” Source: RevenueBase Database · checked Sep 21, 2026
18	Celox Group PTY LTD	Indirect evidence	Sydney, AustraliaHQ checked Sep 21, 2026	1-10	4 contacts →
	Indirect evidence “We are passionate about Information Technology and we constantly invest into our systems and provide leading-edge technology to our customers.” Source: RevenueBase Database · checked Sep 21, 2026
19	Herotech	Partial evidence	Sydney, AustraliaHQ checked Sep 21, 2026	1-10	4 contacts →
	Partial evidence “At HeroTech, we are passionate about Information Technology and how it can transform the way businesses operate and grow.” Source: RevenueBase Database · checked Sep 21, 2026
20	Sydney IT Solutions	Partial evidence	Sydney, AustraliaHQ checked Sep 21, 2026	1-10	4 contacts →
	Partial 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 21, 2026
21	Layer 1 Technologies	Partial evidence	Sydney, AustraliaHQ checked Sep 21, 2026	1-10	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 21, 2026
22	Interdata Solutions	Partial evidence	Sydney, AustraliaHQ checked Sep 21, 2026	11-50	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 21, 2026
23	Working Technology PTY LTD	Indirect evidence	Sydney, AustraliaHQ checked Sep 21, 2026	11-50	2 contacts →
	Indirect evidence “Our unique appeal is that we are able to provide a complete end to end, flexible technology solution for organisations of any size.” Source: RevenueBase Database · checked Sep 21, 2026
24	Vault Outsourcing	Indirect evidence	Sydney, AustraliaHQ checked Sep 21, 2026	201-500	2 contacts →
	Indirect evidence “Each company is unique.” Source: RevenueBase Database · checked Sep 21, 2026
25	Liveware Labs	Indirect evidence	Sydney, AustraliaHQ checked Sep 21, 2026	51-200	2 contacts →
	Indirect evidence “We help you build your full-time, dedicated offshore teams, taking care of everything on the ground, while you retain full control of your team, including KPIs, quality, workflow…” 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 95 outsource IT companies based in Sydney, Australia

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Outsource IT companies based in Sydney, Australia at a glance

As of Sep 21, 2026

23.5%Verified-email coverage

18.8Average contacts per company

11-50Median size (employees)

100.0%Largest-city concentration · Sydney

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

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 95 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 Sydney, 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 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, 420 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 in Australia

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 Sydney, Australia?

RevenueBase identified 95 outsource IT 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?

Satellite Office, headquartered in Sydney, 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 420 verified decision-maker contacts tracked across these 95 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.