Company lists · Data refreshed September 2026

Top 23 Managed IT services for audit firms based in Australia

RevenueBase identified 396 managed IT services for audit firms headquartered in Australia as of September 2026 and tracks 3,483 professional contacts across them, including 1,470 with verified work emails. Melbourne is the largest hub.

This list covers managed IT services for audit firms 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
396Companies
3,483Contacts tracked
1,470Verified emails
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The 23 largest managed IT services for audit firms based in Australia

Ranked by team size
Top 23 of 396 managed IT services for audit firms 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 managed IT services for audit firms: 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 evidenceArundel, AustraliaHQ checked Sep 28, 2026n/a166 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 28, 2026
2Indirect 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
3Partial evidenceWarabrook, AustraliaHQ checked Sep 28, 202651-200118 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 28, 2026
4Strong evidenceVic, AustraliaHQ checked Sep 28, 202651-20096 contacts →

Strong 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 28, 2026
5Indirect evidenceNorwest, AustraliaHQ checked Sep 28, 202611-5096 contacts →

Indirect evidence

“Welcome to Platinum Technology.”

Source: RevenueBase Database · checked Sep 28, 2026
6Partial evidencePort Melbourne, AustraliaHQ checked Sep 28, 202651-20093 contacts →

Partial evidence

“Australia’s cyber-first Managed Service Provider and true technology partner.”

Source: RevenueBase Database · checked Sep 28, 2026
7Partial evidenceSydney, AustraliaHQ checked Sep 28, 202651-20090 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 28, 2026
8Strong evidenceSydney, AustraliaHQ checked Sep 28, 202651-20087 contacts →

Strong 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 28, 2026
9Partial evidenceParramatta, AustraliaHQ checked Sep 28, 2026n/a72 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 28, 2026
10Partial evidenceToowong, AustraliaHQ checked Sep 28, 202651-20047 contacts →

Partial evidence

“OneTeam IT - means you’ll be benefitting from over 60 years of collective experience in maximising return on IT investments.”

Source: RevenueBase Database · checked Sep 28, 2026
11Indirect evidenceMulgrave, AustraliaHQ checked Sep 28, 202651-20046 contacts →

Indirect evidence

“Clarity in a complex world.”

Source: RevenueBase Database · checked Sep 28, 2026
12Strong evidenceChullora, AustraliaHQ checked Sep 28, 202611-5041 contacts →

Strong evidence

“ICTechnology is an IT managed services provider based in Sydney, NSW.”

Source: RevenueBase Database · checked Sep 28, 2026
13Strong evidenceHerston, AustraliaHQ checked Sep 28, 202611-5036 contacts →

Strong evidence

“At Rivercity, we deliver tailored, managed IT services to Brisbane and Queensland businesses.”

Source: RevenueBase Database · checked Sep 28, 2026
14Partial evidenceOatley, AustraliaHQ checked Sep 28, 2026n/a35 contacts →

Partial evidence

“Most small businesses don’t realise their IT systems are a risk until something stops working, data is lost, or a cyber issue hits.”

Source: RevenueBase Database · checked Sep 28, 2026
15Partial evidenceBrisbane, AustraliaHQ checked Sep 28, 202611-5034 contacts →

Partial evidence

“Founded in 1998 by IT industry veteran, Ben Steel, Envisage Technology’s mission is to deliver unmatched levels of quality and service with a consultative approach that works with…”

Source: RevenueBase Database · checked Sep 28, 2026
16Partial evidenceParramatta, AustraliaHQ checked Sep 28, 202611-5026 contacts →

Partial evidence

“Empower IT Solutions understands that not every business can afford a dedicated IT team or specialist to look after their IT needs.”

Source: RevenueBase Database · checked Sep 28, 2026
17Indirect evidenceSydney, AustraliaHQ checked Sep 28, 202611-5026 contacts →

Indirect evidence

“Minimise the risk of a cybersecurity incident.”

Source: RevenueBase Database · checked Sep 28, 2026
18Partial evidenceSydney, AustraliaHQ checked Sep 28, 202611-5026 contacts →

Partial evidence

“LNP Audit and Assurance is a dynamic growing specialist audit and assurance practice.”

Source: RevenueBase Database · checked Sep 28, 2026
19Strong evidenceSydney, AustraliaHQ checked Sep 28, 202611-5023 contacts →

Strong evidence

“IT Logic provides Managed Services and procurement to clients in any industry pre-dominantly in the small to medium size business space.”

Source: RevenueBase Database · checked Sep 28, 2026
20Partial evidenceMelbourne, AustraliaHQ checked Sep 28, 202611-5023 contacts →

Partial evidence

“CSW-IT is a fast-paced, dynamic business that prides itself on building and nurturing business relationships with valued partners and customers alike.”

Source: RevenueBase Database · checked Sep 28, 2026
21Partial evidenceCastle Hill, AustraliaHQ checked Sep 28, 202651-20022 contacts →

Partial evidence

“Trust our experience to manage your business.”

Source: RevenueBase Database · checked Sep 28, 2026
22Indirect evidenceSunshine West, AustraliaHQ checked Sep 28, 202611-5022 contacts →

Indirect evidence

“When investing in technology for your business, have alltasksIT on your team to get the maximum advantage.”

Source: RevenueBase Database · checked Sep 28, 2026
23Indirect evidencePerth Airport, AustraliaHQ checked Sep 28, 202611-5022 contacts →

Indirect evidence

“The Revolution Starts Here!”

Source: RevenueBase Database · checked Sep 28, 2026

Showing 23 of 396 managed IT services for audit firms based in Australia

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Managed IT services for audit firms based in Australia at a glance

As of Sep 28, 2026
42.2%Verified-email coverage
8.8Average contacts per company
1-10Median size (employees)
12.4%Largest-city concentration · Melbourne
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
233
11-50
144
51-200
16

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 396 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 managed IT services for audit firms, 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 “managed IT services for audit firms”. 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 managed IT services for audit firms), 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 managed IT services for audit firms, 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, 1,470 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 managed IT services for audit firms, 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 managed IT services for audit firms are there based in Australia?

RevenueBase identified 396 managed IT services for audit firms 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?

Ongc Systems, headquartered in Arundel, tops this list with the largest team on record.

Which city has the most managed IT services for audit firms?

Melbourne leads with 49 headquartered companies, followed by Sydney (44) and Perth (19).

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 1,470 verified decision-maker contacts tracked across these 396 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.