Company lists · Data refreshed September 2026

Top 24 Consulting IT services based in Sydney, Australia

RevenueBase identified 698 consulting IT services headquartered in Sydney, Australia as of September 2026 and tracks 7,798 professional contacts across them, including 2,911 with verified work emails. Sydney is the largest hub.

This list covers consulting IT services 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 24, 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 24, 2026 86% judged on-target in blind review
698Companies
7,798Contacts tracked
2,911Verified emails
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The 24 largest consulting IT services based in Sydney, Australia

Ranked by team size
Top 24 of 698 consulting IT services based in Sydney, Australia, ranked by team size, largest first. Data refreshed Sep 24, 2026. RevenueBase Smart Search rates how each company's information relates to consulting IT services: 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 evidenceSydney, AustraliaHQ checked Sep 24, 20261,001-5,000802 contacts →

Indirect evidence

“NCS in Australia is reinventing technology services from the inside out.”

Source: RevenueBase Database · checked Sep 24, 2026
2Partial evidenceSydney, AustraliaHQ checked Sep 24, 20261,001-5,000801 contacts →

Partial evidence

“Atturra (ASX: ATA) is one of Australia's leading advisory and IT solutions providers, focused on providing end-to-end transformation services to its clients.”

Source: RevenueBase Database · checked Sep 24, 2026
3Partial evidenceSydney, AustraliaHQ checked Sep 24, 2026501-1,000777 contacts →

Partial evidence

“Nexon Asia Pacific (Nexon) is an award-winning digital consulting and managed services partner for mid-market, enterprise, and government organisations across Australia.”

Source: RevenueBase Database · checked Sep 24, 2026
4Partial evidenceSydney, AustraliaHQ checked Sep 24, 20261,001-5,000711 contacts →

Partial evidence

“As a trusted end-to-end digital partner, we design, build, and manage IT solutions that turn bold visions into reality and set new standards of excellence for our clients.”

Source: RevenueBase Database · checked Sep 24, 2026
5Indirect evidenceSydney, AustraliaHQ checked Sep 24, 2026201-500179 contacts →

Indirect evidence

“Tecala is an award-winning Australian technology partner, helping mid-market organisations navigate complexity and accelerate transformation with confidence.”

Source: RevenueBase Database · checked Sep 24, 2026
6Partial evidenceSydney, AustraliaHQ checked Sep 24, 202610001+177 contacts →

Partial evidence

“Barhead, an Akkodis company, is an award-winning consulting firm focused on leveraging Microsoft’s Technology Stack to deliver business solutions.”

Source: RevenueBase Database · checked Sep 24, 2026
7Partial evidenceSydney, AustraliaHQ checked Sep 24, 202651-200121 contacts →

Partial evidence

“TechForce Services | Salesforce® Summit Consulting Partner | Managed Services & Digital Transformation Leader Globally Recognized.”

Source: RevenueBase Database · checked Sep 24, 2026
8Partial evidenceSydney, AustraliaHQ checked Sep 24, 202651-200108 contacts →

Partial evidence

“We are a proud Member of the Global Technology Industry Association -GITA OUR SERVICES Avocado helps clients deliver with certainty on their complex IT change, with technology…”

Source: RevenueBase Database · checked Sep 24, 2026
9Indirect evidenceSydney, AustraliaHQ checked Sep 24, 202651-20095 contacts →

Indirect evidence

“Increment are technology specialists with a unique breadth of experience and depth of technical knowledge.”

Source: RevenueBase Database · checked Sep 24, 2026
10Partial evidenceSydney, AustraliaHQ checked Sep 24, 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 24, 2026
11Partial evidenceSydney, AustraliaHQ checked Sep 24, 202651-20087 contacts →

Partial 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 24, 2026
12Partial evidenceSydney, AustraliaHQ checked Sep 24, 202651-20077 contacts →

Partial evidence

“Quorum is a highly advanced and innovative professional and managed services provider that uses targeted IT solutions to suit the demands of the modern business environment.”

Source: RevenueBase Database · checked Sep 24, 2026
13Partial evidenceSydney, AustraliaHQ checked Sep 24, 202651-20075 contacts →

Partial evidence

“Telestar manages the IT and communications of businesses and governments.”

Source: RevenueBase Database · checked Sep 24, 2026
14Partial evidenceSydney, AustraliaHQ checked Sep 24, 20261,001-5,00063 contacts →

Partial evidence

“ICG is a 21st century consulting and project services platform that delivers any permutation of professional consultants, intellectual property, methodology, training and services…”

Source: RevenueBase Database · checked Sep 24, 2026
15Indirect evidenceSydney, AustraliaHQ checked Sep 24, 202651-20057 contacts →

Indirect evidence

“Enterprise-grade teams.”

Source: RevenueBase Database · checked Sep 24, 2026
16Partial evidenceSydney, AustraliaHQ checked Sep 24, 202651-20052 contacts →

Partial 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 24, 2026
17Indirect evidenceSydney, AustraliaHQ checked Sep 24, 202651-20048 contacts →

Indirect evidence

“See tomorrow and stay ahead.”

Source: RevenueBase Database · checked Sep 24, 2026
18Partial evidenceSydney, AustraliaHQ checked Sep 24, 202611-5047 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 24, 2026
19Indirect evidenceSydney, AustraliaHQ checked Sep 24, 202651-20046 contacts →

Indirect evidence

“A leading technology consultancy that empowers businesses with comprehensive solutions for their digital transformation.”

Source: RevenueBase Database · checked Sep 24, 2026
20Indirect evidenceSydney, AustraliaHQ checked Sep 24, 202651-20042 contacts →

Indirect evidence

“Unlock the full potential of your small business with Net Fusion Technology (NFT), the ultimate all-in-one solution.”

Source: RevenueBase Database · checked Sep 24, 2026
21Indirect evidenceSydney, AustraliaHQ checked Sep 24, 202611-5041 contacts →

Indirect evidence

“Seccom Global - The Cyber Security Company Providing excellence in service to educate, connect and protect your business Founded in 2003, Seccom Global is recognised as a leader…”

Source: RevenueBase Database · checked Sep 24, 2026
22Strong evidenceSydney, AustraliaHQ checked Sep 24, 202651-20035 contacts →

Strong evidence

“About Sazae Pty Ltd Sazae Pty Ltd is a global IT consulting company headquartered in Sydney, with offices in Australia, Japan, and Vietnam.”

Source: RevenueBase Database · checked Sep 24, 2026
23Partial evidenceSydney, AustraliaHQ checked Sep 24, 202611-5034 contacts →

Partial evidence

“AI Consulting Group has a strong team of technical resources with specialised capabilities and experience as well as exceptional customer and business communication skills.”

Source: RevenueBase Database · checked Sep 24, 2026
24Strong evidenceSydney, AustraliaHQ checked Sep 24, 2026501-1,00032 contacts →

Strong evidence

“Advance Delivery Consulting (ADC) is a trusted IT consulting partner across Australia, APAC, and the Middle East, driving transformational business value through innovative…”

Source: RevenueBase Database · checked Sep 24, 2026

Showing 24 of 698 consulting IT services based in Sydney, Australia

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Consulting IT services based in Sydney, Australia at a glance

As of Sep 24, 2026
37.3%Verified-email coverage
11.2Average contacts per company
1-10Median size (employees)
100.0%Largest-city concentration · Sydney
Sep 24, 2026Page data refreshed

Companies by employee count

1-10
461
11-50
175
51-200
46
201-500
4
501-1,000
6
1,001-5,000
5
10001+
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 698 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 consulting IT services, 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 “consulting IT services”. 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 consulting IT services), 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 consulting IT services, 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, 2,911 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 24, 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 consulting IT services, 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 consulting IT services are there based in Sydney, Australia?

RevenueBase identified 698 consulting IT services 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?

NCS Group Australia, headquartered in Sydney, tops this list with the largest team on record.

Which city has the most consulting IT services?

Sydney leads with 698 headquartered companies, followed by Melbourne (649) and Brisbane (225).

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 2,911 verified decision-maker contacts tracked across these 698 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 24, 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.