Company lists · Data refreshed September 2026

Top 20 Enterprise support companies based in Sydney, Australia

RevenueBase identified 54 enterprise support companies headquartered in Sydney, Australia as of September 2026 and tracks 601 professional contacts across them, including 144 with verified work emails. Across Australia, Sydney is the largest hub for this category.

This list covers enterprise 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 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
54Companies
601Contacts tracked
144Verified emails
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The 20 largest enterprise support companies based in Sydney, Australia

Ranked by team size
Top 20 of 54 enterprise support companies based in Sydney, Australia, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to enterprise support 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
1Partial evidenceSydney, AustraliaHQ checked Sep 28, 2026201-500190 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 28, 2026
2Partial evidenceSydney, AustraliaHQ checked Sep 28, 202651-200140 contacts →

Partial evidence

“Geeks2U has been Australia’s leading provider of on-site and remote tech support since 2005.”

Source: RevenueBase Database · checked Sep 28, 2026
3Indirect evidenceSydney, AustraliaHQ checked Sep 28, 202651-20052 contacts →

Indirect 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
4Indirect evidenceSydney, AustraliaHQ checked Sep 28, 202611-5038 contacts →

Indirect evidence

“With a proud two decade history of achievement, Astron Technology (Astrontech) is a proven collaborative technology partner focused on solving the infrastructure issues facing…”

Source: RevenueBase Database · checked Sep 28, 2026
5Partial evidenceSydney, AustraliaHQ checked Sep 28, 20261-1013 contacts →

Partial evidence

“Business Products and Solution International (BPSI Pty Ltd) is a company looking after the interests of the Small and Medium Enterprise (SME) sector.”

Source: RevenueBase Database · checked Sep 28, 2026
6Indirect evidenceSydney, AustraliaHQ checked Sep 28, 20261-108 contacts →

Indirect 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 28, 2026
7Indirect evidenceSydney, AustraliaHQ checked Sep 28, 202611-506 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 28, 2026
8Partial evidenceSydney, AustraliaHQ checked Sep 28, 20261-104 contacts →

Partial 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 28, 2026
9Partial evidenceSydney, AustraliaHQ checked Sep 28, 20261-104 contacts →

Partial evidence

“A leading IT company that is dedicated to providing personalised and advanced IT support.”

Source: RevenueBase Database · checked Sep 28, 2026
10Partial evidenceSydney, AustraliaHQ checked Sep 28, 202611-504 contacts →

Partial evidence

“Our core business objective is the provision of superior IT Services and Solutions to SME's (Small and Medium Enterprises) and corporate clients throughout Australia.”

Source: RevenueBase Database · checked Sep 28, 2026
11Indirect evidenceSydney, AustraliaHQ checked Sep 28, 20261-104 contacts →

Indirect 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 28, 2026
12Partial evidenceSydney, AustraliaHQ checked Sep 28, 202611-503 contacts →

Partial evidence

“Tango Technology is a Sydney based IT solutions provider focused on small to medium enterprises.”

Source: RevenueBase Database · checked Sep 28, 2026
13Indirect evidenceSydney, AustraliaHQ checked Sep 28, 20261-103 contacts →

Indirect 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 28, 2026
14Partial evidenceSydney, AustraliaHQ checked Sep 28, 20261-102 contacts →

Partial evidence

“ARCSEC IT technicians have a wealth of experience in a wide variety of Managed Services and have the capability to deliver on our support promises and solutions.”

Source: RevenueBase Database · checked Sep 28, 2026
15Partial evidenceSydney, AustraliaHQ checked Sep 28, 20261-102 contacts →

Partial evidence

“Geared Systems is dedicated to providing clear and simple IT solutions, from computer repairs to company support and system management.”

Source: RevenueBase Database · checked Sep 28, 2026
16Partial evidenceSydney, AustraliaHQ checked Sep 28, 202611-501 contacts →

Partial evidence

“With hands on support from some of the IT industry’s most in-demand, experienced, independent thinking coaches and experts, incredibleresults helps ambitious and committed IT…”

Source: RevenueBase Database · checked Sep 28, 2026
17Indirect evidenceSydney, AustraliaHQ checked Sep 28, 20261-101 contacts →

Indirect evidence

“We’re a fantastic bunch of dedicated specialists that are all about one thing: keeping your IT working smoothly and efficiently.”

Source: RevenueBase Database · checked Sep 28, 2026
18Partial evidenceSydney, AustraliaHQ checked Sep 28, 20261-101 contacts →

Partial evidence

“Datashop works with customers on their IT and telecommunications projects, providing consulting and technical support services.”

Source: RevenueBase Database · checked Sep 28, 2026
19Partial evidenceSydney, AustraliaHQ checked Sep 28, 20261-101 contacts →

Partial evidence

“As a trusted partner to SME's across the Hornsby shire, Excalibur IT takes care of Computer Support and Small Business Consulting needs for your Small Business, allowing you to…”

Source: RevenueBase Database · checked Sep 28, 2026
20Indirect evidenceSydney, AustraliaHQ checked Sep 28, 20261-101 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 28, 2026

Showing 20 of 54 enterprise support companies based in Sydney, Australia

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Enterprise support companies based in Sydney, Australia at a glance

As of Sep 28, 2026
24.0%Verified-email coverage
11.1Average contacts per company
1-10Median size (employees)
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
36
11-50
11
51-200
5
201-500
1
501-1,000
1

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 54 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 enterprise 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 “enterprise 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 enterprise 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 enterprise 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, 144 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.

Enterprise support 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 enterprise 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 enterprise support companies are there based in Sydney, Australia?

RevenueBase identified 54 enterprise 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?

Serole Technologies, headquartered in Sydney, tops this list with the largest team on record.

Which city in Australia has the most enterprise support companies?

Sydney leads Australia with 54 headquartered companies, followed by Melbourne (48) and Perth (18).

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 144 verified decision-maker contacts tracked across these 54 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.