Company lists · Data refreshed September 2026

Top 25 Defense IT consulting firms based in Australia

Name: Defense IT consulting firms based in Australia
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 835 companies tracked

RevenueBase identified 835 defense IT consulting firms headquartered in Australia as of September 2026 and tracks 14,707 professional contacts across them, including 5,704 with verified work emails. Melbourne is the largest hub.

This list covers defense IT consulting 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

835Companies

14,707Contacts tracked

5,704Verified emails

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The 25 largest defense IT consulting firms based in Australia

Ranked by team size

Top 25 of 835 defense IT consulting 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 defense IT consulting 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Leidos Australia	Partial evidence	Scoresby, AustraliaHQ checked Sep 28, 2026	1,001-5,000	969 contacts →
	Partial evidence “Leidos is a Fortune 500® innovation company working to solve the world’s toughest challenges in government, intelligence, defence, aviation, border protection and health markets.” Source: RevenueBase Database · checked Sep 28, 2026
2	NCS Group Australia	Indirect evidence	Sydney, AustraliaHQ checked Sep 28, 2026	1,001-5,000	802 contacts →
	Indirect evidence “NCS in Australia is reinventing technology services from the inside out.” Source: RevenueBase Database · checked Sep 28, 2026
3	Nexon Asia Pacific	Partial evidence	Sydney, AustraliaHQ checked Sep 28, 2026	501-1,000	777 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 28, 2026
4	CITEC	Indirect evidence	Brisbane, AustraliaHQ checked Sep 28, 2026	201-500	383 contacts →
	Indirect evidence “CITEC is the primary technology service provider for the Queensland Government delivering both whole-of-government and agency specific ICT services.” Source: RevenueBase Database · checked Sep 28, 2026
5	Ac3	Indirect evidence	Haymarket, AustraliaHQ checked Sep 28, 2026	201-500	365 contacts →
	Indirect evidence “AC3 is a leading Australian-owned and operated technology services provider helping organisations across government, healthcare, financial services, and critical infrastructure…” Source: RevenueBase Database · checked Sep 28, 2026
6	Centorrino Technologies	Indirect evidence	Coburg, AustraliaHQ checked Sep 28, 2026	201-500	352 contacts →
	Indirect evidence “We are an Australian-owned, full-service ICT Solutions and Cyber Security provider with a locally based team of over 450 passionate Aussies.” Source: RevenueBase Database · checked Sep 28, 2026
7	Risk Associates - Emea & Asia	Indirect evidence	Bella Vista, AustraliaHQ checked Sep 28, 2026	51-200	170 contacts →
	Indirect evidence “Ensuring your business is handling cyber security risks effectively has never been more important.” Source: RevenueBase Database · checked Sep 28, 2026
8	Aurizn	Partial evidence	Adelaide, AustraliaHQ checked Sep 28, 2026	201-500	157 contacts →
	Partial evidence “Servicing Defence and Enterprise with our unique expertise in #AI, Advanced Sensing and #Simulation, Aurizn’s purpose is to push the boundaries of the known to create a more…” Source: RevenueBase Database · checked Sep 28, 2026
9	Cube Networks	Indirect evidence	Southbank, AustraliaHQ checked Sep 28, 2026	51-200	156 contacts →
	Indirect evidence “Cube Networks are experts in Digital Infrastructure with strong foundations in Networks and Security, who pride ourselves on simplified solutions for complex, large-scale…” Source: RevenueBase Database · checked Sep 28, 2026
10	Crystal Delta	Indirect evidence	Melbourne, AustraliaHQ checked Sep 28, 2026	51-200	155 contacts →
	Indirect evidence “Explore new frontiers, uncover value from core business and build secure, scalable digital foundations through our transformative Technology Solutions.” Source: RevenueBase Database · checked Sep 28, 2026
11	Outcomex	Indirect evidence	North Ryde, AustraliaHQ checked Sep 28, 2026	51-200	115 contacts →
	Indirect evidence “Outcomex is an award winning advisor, devoted to providing intuitive solutions in information technology.” Source: RevenueBase Database · checked Sep 28, 2026
12	Renew IT	Partial evidence	Lane Cove West, AustraliaHQ checked Sep 28, 2026	51-200	115 contacts →
	Partial evidence “Innovative Managed Services: Bridging Assets, Systems, and Security Welcome to Renew IT, your trusted partner in delivering comprehensive managed services, systems integration…” Source: RevenueBase Database · checked Sep 28, 2026
13	Office Solutions IT	Partial evidence	Osborne Park, AustraliaHQ checked Sep 28, 2026	51-200	114 contacts →
	Partial evidence “IT to smile about.” Source: RevenueBase Database · checked Sep 28, 2026
14	Gibson Quai International GQI	Indirect evidence	Melbourne, AustraliaHQ checked Sep 28, 2026	51-200	113 contacts →
	Indirect evidence “Your Trusted Partner in Digital Transformation and Communications Technology 30 Years of Innovation And Expertise GQI has been a trusted advisor and professional services provider…” Source: RevenueBase Database · checked Sep 28, 2026
15	NEW ERA Technology AU	Indirect evidence	Mascot, AustraliaHQ checked Sep 28, 2026	501-1,000	111 contacts →
	Indirect evidence “New Era delivers Technology Solutions that securely connect people, places, and information in a rapidly changing digital world.” Source: RevenueBase Database · checked Sep 28, 2026
16	Avocado Consulting	Partial evidence	Sydney, AustraliaHQ checked Sep 28, 2026	51-200	108 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 28, 2026
17	Ericom	Indirect evidence	Surry Hills, AustraliaHQ checked Sep 28, 2026	51-200	106 contacts →
	Indirect evidence “Welcome to Ericom, Australia’s leading technology solutions provider.” Source: RevenueBase Database · checked Sep 28, 2026
18	Ever Nimble	Partial evidence	West Perth, AustraliaHQ checked Sep 28, 2026	51-200	102 contacts →
	Partial evidence “We are your IT & Cyber Security partners.” Source: RevenueBase Database · checked Sep 28, 2026
19	Sypaq Systems	Indirect evidence	Port Melbourne, AustraliaHQ checked Sep 28, 2026	201-500	99 contacts →
	Indirect evidence “SYPAQ is an innovative engineering and systems integration company, committed to creating a world that works, awarded the Australian Financial Review's "Most Innovative Company"…” Source: RevenueBase Database · checked Sep 28, 2026
20	Increment	Indirect evidence	Sydney, AustraliaHQ checked Sep 28, 2026	51-200	95 contacts →
	Indirect evidence “Increment are technology specialists with a unique breadth of experience and depth of technical knowledge.” Source: RevenueBase Database · checked Sep 28, 2026
21	Kaine Mathrick Tech	Indirect evidence	Port Melbourne, AustraliaHQ checked Sep 28, 2026	51-200	93 contacts →
	Indirect evidence “Australia’s cyber-first Managed Service Provider and true technology partner.” Source: RevenueBase Database · checked Sep 28, 2026
22	Delivery Centric	Indirect evidence	Docklands, AustraliaHQ checked Sep 28, 2026	51-200	90 contacts →
	Indirect evidence “As a well-established, specialist Technology Solutions provider, we have offices throughout the Asia-Pacific (APAC) region; all there to help you with your technology needs and to…” Source: RevenueBase Database · checked Sep 28, 2026
23	ORETA	Indirect evidence	Docklands, AustraliaHQ checked Sep 28, 2026	51-200	89 contacts →
	Indirect evidence “Oreta is an Australian technology company helping organisations cut through complexity and achieve real business outcomes across cloud, cybersecurity, networking, and digital…” Source: RevenueBase Database · checked Sep 28, 2026
24	Informatech PTY LTD	Partial evidence	Canberra, AustraliaHQ checked Sep 28, 2026	51-200	88 contacts →
	Partial evidence “Informatech is a veteran led business and specialises in ICT within Defence.” Source: RevenueBase Database · checked Sep 28, 2026
25	Secure Agility	Partial evidence	Sydney, AustraliaHQ checked Sep 28, 2026	51-200	87 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 28, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: defense IT consulting firms. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names defense IT consulting firms.
Partial evidence: Its own public description names part of defense IT consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name defense IT consulting firms. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 835 defense IT consulting firms based in Australia

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Defense IT consulting firms based in Australia at a glance

As of Sep 28, 2026

38.8%Verified-email coverage

17.6Average contacts per company

1-10Median size (employees)

16.6%Largest-city concentration · Melbourne

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

490

11-50

243

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

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 835 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 defense IT consulting 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 “defense IT consulting 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 defense IT consulting 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 defense IT consulting 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, 5,704 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.

Defense IT consulting firms by metro

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 defense IT consulting 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 defense IT consulting firms are there based in Australia?

RevenueBase identified 835 defense IT consulting 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?

Leidos Australia, headquartered in Scoresby, tops this list with the largest team on record.

Which city has the most defense IT consulting firms?

Melbourne leads with 139 headquartered companies, followed by Sydney (138) and Canberra (85).

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 5,704 verified decision-maker contacts tracked across these 835 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.