Company lists · Data refreshed September 2026

Top 23 IT services consulting companies based in Sydney, Australia

RevenueBase identified 694 IT services consulting companies headquartered in Sydney, Australia as of September 2026 and tracks 8,177 professional contacts across them, including 2,591 with verified work emails. Across Australia, Sydney is the largest hub for this category.

This list covers IT services consulting 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 27, 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 27, 2026 86% judged on-target in blind review
694Companies
8,177Contacts tracked
2,591Verified emails
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The 23 largest IT services consulting companies based in Sydney, Australia

Ranked by team size
Top 23 of 694 IT services consulting companies based in Sydney, Australia, ranked by team size, largest first. Data refreshed Sep 27, 2026. RevenueBase Smart Search rates how each company's information relates to IT services consulting 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
1Indirect evidenceSydney, AustraliaHQ checked Sep 27, 20261,001-5,000802 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 27, 2026
2Partial evidenceSydney, AustraliaHQ checked Sep 27, 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 27, 2026
3Partial evidenceSydney, AustraliaHQ checked Sep 27, 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 27, 2026
4Partial evidenceSydney, AustraliaHQ checked Sep 27, 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 27, 2026
5Indirect evidenceSydney, AustraliaHQ checked Sep 27, 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 27, 2026
6Partial evidenceSydney, AustraliaHQ checked Sep 27, 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 27, 2026
7Indirect evidenceSydney, AustraliaHQ checked Sep 27, 2026201-500155 contacts →

Indirect evidence

“FinXL was established in 2003 and has an international presence with eight offices across Australia and New Zealand.”

Source: RevenueBase Database · checked Sep 27, 2026
8Partial evidenceSydney, AustraliaHQ checked Sep 27, 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 27, 2026
9Indirect evidenceSydney, AustraliaHQ checked Sep 27, 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 27, 2026
10Partial evidenceSydney, AustraliaHQ checked Sep 27, 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 27, 2026
11Partial evidenceSydney, AustraliaHQ checked Sep 27, 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 27, 2026
12Partial evidenceSydney, AustraliaHQ checked Sep 27, 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 27, 2026
13Partial evidenceSydney, AustraliaHQ checked Sep 27, 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 27, 2026
14Indirect evidenceSydney, AustraliaHQ checked Sep 27, 202651-20057 contacts →

Indirect evidence

“Enterprise-grade teams.”

Source: RevenueBase Database · checked Sep 27, 2026
15Partial evidenceSydney, AustraliaHQ checked Sep 27, 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 27, 2026
16Indirect evidenceSydney, AustraliaHQ checked Sep 27, 202651-20048 contacts →

Indirect evidence

“See tomorrow and stay ahead.”

Source: RevenueBase Database · checked Sep 27, 2026
17Partial evidenceSydney, AustraliaHQ checked Sep 27, 202611-5047 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 27, 2026
18Indirect evidenceSydney, AustraliaHQ checked Sep 27, 202651-20046 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 27, 2026
19Partial evidenceSydney, AustraliaHQ checked Sep 27, 202651-20042 contacts →

Partial evidence

“Ideate, Inspire, Innovate, Implement Partner 2 Simplify (P2S) is a global IT services company simplifying digital transformation for organisations across Australia, India, and the…”

Source: RevenueBase Database · checked Sep 27, 2026
20Indirect evidenceSydney, AustraliaHQ checked Sep 27, 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 27, 2026
21Indirect evidenceSydney, AustraliaHQ checked Sep 27, 202651-20038 contacts →

Indirect evidence

“Too many organisations pour time and money into technology without getting the outcomes they expected.”

Source: RevenueBase Database · checked Sep 27, 2026
22Strong evidenceSydney, AustraliaHQ checked Sep 27, 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 27, 2026
23Partial evidenceSydney, AustraliaHQ checked Sep 27, 202611-5035 contacts →

Partial evidence

“2018 - ARN Innovation Award - Customer Value 2017 -#22 Deloitte Tech Fast 50 2017 #10 CRN Fast 50 2016 #4 CRN Fast 50 We turn IT into a business asset, not a liability.”

Source: RevenueBase Database · checked Sep 27, 2026

Showing 23 of 694 IT services consulting companies based in Sydney, Australia

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IT services consulting companies based in Sydney, Australia at a glance

As of Sep 27, 2026
31.7%Verified-email coverage
11.8Average contacts per company
1-10Median size (employees)
Sep 27, 2026Page data refreshed

Companies by employee count

1-10
419
11-50
198
51-200
54
201-500
7
501-1,000
7
1,001-5,000
6
10001+
2

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 694 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 IT services consulting 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 “IT services consulting 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 IT services consulting 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 IT services consulting 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, 2,591 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 27, 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 IT services consulting 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 IT services consulting companies are there based in Sydney, Australia?

RevenueBase identified 694 IT services consulting 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?

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

Which city in Australia has the most IT services consulting companies?

Sydney leads Australia with 694 headquartered companies, followed by Melbourne (656) and Brisbane (215).

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 2,591 verified decision-maker contacts tracked across these 694 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 27, 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.