Company lists · Data refreshed November 2026

Top 14 IT consultancy companies based in Australia

RevenueBase identified 2,592 company matches for IT consultancy companies associated with Australia as of November 2026 and tracks 43,072 professional contacts across them, including 12,187 with verified work emails. Sydney is the largest hub.

This list covers company matches for IT consultancy companies associated with Australia, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built
2,592Companies
43,072Contacts tracked
12,187Verified emails
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The 14 largest IT consultancy companies based in Australia

Ranked by team size
Top 14 of 2,592 company matches for IT consultancy companies based in Australia, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchSydney, AustraliaHQ recorded Nov 6, 20261,001-5,000869 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchMelbourne, AustraliaHQ recorded Nov 6, 2026201-500394 contacts →

Exact match

“Since 1991, DWS has been helping organisations across Australia reimagine what’s possible through technology, business, and management consulting.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchNeutral Bay, AustraliaHQ recorded Nov 6, 202651-200293 contacts →

Exact match

“SSW's Consulting Services have delivered best-of-breed Microsoft solutions for more than clients in 15 countries.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchMelbourne, AustraliaHQ recorded Nov 6, 2026201-500265 contacts →

Exact match

“At Terra Firma, we understand that success is all about sustaining long-term relationships.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchArundel, AustraliaHQ recorded Nov 6, 2026n/a252 contacts →

Exact match

“ONGC Systems provides businesses with comprehensive IT services, that automate and streamline operations, reduce risk and increase stability while lowering the cost of system…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchSydney, AustraliaHQ recorded Nov 6, 202651-200221 contacts →

Exact match

“The Data People Shaping Tomorrow.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchSydney, AustraliaHQ recorded Nov 6, 202610001+181 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchMelbourne, AustraliaHQ recorded Nov 6, 20265,001-10,000171 contacts →

Exact match

“Protiviti is a global business consulting firm that delivers deep expertise, objective insights, a tailored approach and unparalleled collaboration to help leaders confidently…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchMelbourne, AustraliaHQ recorded Nov 6, 202651-200166 contacts →

Exact match

“CPT Global is your independent partner for achieving peak IT performance.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchBrisbane City, AustraliaHQ recorded Nov 6, 202651-200151 contacts →

Exact match

“Blackbook AI is a global technology consulting company specialising in AI, automation, data, and digital development.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchOsborne Park, AustraliaHQ recorded Nov 6, 202651-200129 contacts →

Exact match

“IT to smile about.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchWarabrook, AustraliaHQ recorded Nov 6, 202651-200120 contacts →

Exact match

“Diamond IT is an Australian technology partner supporting organisations since 1996 with solutions that improve business outcomes, reduce risk, and enable sustainable growth.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchNorth Ryde, AustraliaHQ recorded Nov 6, 202651-200119 contacts →

Exact match

“Outcomex is an award winning advisor, devoted to providing intuitive solutions in information technology.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchSydney, AustraliaHQ recorded Nov 6, 202651-200119 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 14 of 2,592 IT consultancy companies based in Australia

See the full list, filter by size, metro and specialty, and access 12,187 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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IT consultancy companies based in Australia at a glance

As of Nov 6, 2026
28.3%Verified-email coverage
16.6Average contacts per company
1-10Median size (employees)
19.1%Largest-city concentration · Sydney
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
1,608
11-50
752
51-200
168
201-500
23
501-1,000
7
1,001-5,000
6
5,001-10,000
2
10001+
4

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 2,592 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with Australia whose business descriptions match “IT consultancy companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 12,187 professional contacts with verified work emails across the full matched dataset. 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 November 6, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “IT consultancy companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many IT consultancy companies are there based in Australia?

RevenueBase identified 2,592 company matches for IT consultancy companies associated with Australia as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Atturra tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most IT consultancy companies?

Sydney leads with 494 company records, followed by Melbourne (475) and Brisbane (151).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 12,187 professional contacts with verified work emails tracked across these 2,592 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 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 SmartSearch, 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.