Company lists · Data refreshed September 2026

Top 23 Defense technology software startups based in Australia

Name: Defense technology software startups based in Australia
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 1, 2026 42 companies tracked

There are 42 defense technology software startups headquartered in Australia (RevenueBase, September 2026). RevenueBase tracks 1,577 professional contacts across them, including 366 with verified work emails and 78 with mobile numbers. Canberra is the largest hub.

This list covers defense technology software startups 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, how directly it supports the match, and when it was last checked. Data refreshed September 1, 2026.

42Companies

1,577Contacts tracked

366Verified emails

78Mobile numbers

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The 23 largest defense technology software startups based in Australia

Ranked by team size

Top 23 of 42 defense technology software startups based in Australia, ranked by team size, largest first. Data refreshed Sep 1, 2026. Evidence rates how directly each company's own description names defense technology software startups: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts	Verified emails
1	Leidos AustraliaPartial 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: company website · checked Sep 1, 2026	Scoresby, Australia	1,001-5,000	965	30
2	AuriznPartial 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: company website · checked Sep 1, 2026	Adelaide, Australia	201-500	157	114
3	AVI PTY LTDStrong evidence “AVI provides technology-based solutions to government, defence, mining and corporate communities.” Source: company website · checked Sep 1, 2026	Symonston, Australia	51-200	59	42
4	SimcentricPartial evidence “SimCentric is a technology company focused on transforming training, safety and operational decision making through innovation.” Source: company website · checked Sep 1, 2026	Albury, Australia	51-200	56	37
5	Acacia SystemsStrong evidence “Supporting the Australian Defence Force since 1992, Acacia is a leading Australian defence software and systems company engaged primarily in developing advanced mission management…” Source: company website · checked Sep 1, 2026	Hendon, Australia	51-200	44	31
6	BluerydgePartial evidence “Bluerydge delivers mission-secure capability, specialising in Cybersecurity, Technology, Artificial Intelligence (AI), and Robotics.” Source: company website · checked Sep 1, 2026	Fyshwick, Australia	51-200	39	28
7	Softel SystemsIndirect evidence “With over 20 years in the security market for IT and Telecommunications networks, Softel has naturally migrated these skills into the Cybersecurity challenges of today.” Source: company website · checked Sep 1, 2026	Melbourne, Australia	11-50	38	26
8	Rfteq PTY LTDPartial evidence “RFTEQ was founded in 2017 by partners with over 150 years of combined extensive global experience in the fields of defence related Electronic Warfare (EW), Force Protection…” Source: company website · checked Sep 1, 2026	Torrensville, Australia	11-50	22	17
9	X-RdStrong evidence “x-RD is an award-winning Australian technology company that specialises in secure applications and platforms, systems integration and AI products and services for Defence…” Source: company website · checked Sep 1, 2026	Canberra, Australia	11-50	21	11
10	TemsconsuPartial evidence “TEMSCONSU is a software engineering firm/developer company that now specialises or has found its niche in developing/implementing innovative & disruptive Cyber Security and…” Source: company website · checked Sep 1, 2026	Brisbane, Australia	11-50	8	3
11	PentenStrong evidence “Penten is an Australian-owned, cyber technology business, delivering new future cyber technologies to enable defence and government.” Source: company website · checked Sep 1, 2026	Australia	51-200	7	5
12	ArinnovatePartial evidence “A specialised consulting firm providing organisations with bespoke software development and cyber security services.” Source: company website · checked Sep 1, 2026	Sydney, Australia	11-50	7	2
13	Fulcrum DesignPartial evidence “Fulcrum Design is an Australian owned and operated company specialising in computer systems research, software development, and operational assurance for our clients across the…” Source: company website · checked Sep 1, 2026	Canberra, Australia	11-50	5	4
14	Ebor ComputingStrong evidence “Ebor Computing creates high quality scientific and technical software solutions and specialist hardware systems for Defence, Government and Commercial clients.” Source: company website · checked Sep 1, 2026	Australia	11-50	5	2
15	Codehaus PTY LTDStrong evidence “Codehaus is an Adelaide-based software engineering company dedicated to delivering innovative and secure technology solutions to the Australian public sector.” Source: company website · checked Sep 1, 2026	Mawson Lakes, Australia	1-10	5	2
16	Ytek PTY LTDIndirect evidence “Simulation Training Solutions” Source: company website · checked Sep 1, 2026	Melbourne, Australia	11-50	5	1
17	Astute SystemsIndirect evidence “Astute Systems is a pioneering force in militarized, AI-enabled computing solutions, engineered for the most demanding environments.” Source: company website · checked Sep 1, 2026	Fortitude Valley, Australia	1-10	4	3
18	Athlan TechnologiesPartial evidence “ATHLAN Technologies is a next-generation technology and innovation company building secure, intelligent, and resilient digital ecosystems.” Source: company website · checked Sep 1, 2026	Melbourne, Australia	11-50	4	1
19	Digital DilemmaStrong evidence “Digital Dilemma has been building software for defence, government and enterprise for the past 15 ears.” Source: company website · checked Sep 1, 2026	Sydney, Australia	1-10	3	2
20	EnginixPartial evidence “We solve real world problems as a piece of software.” Source: company website · checked Sep 1, 2026	Mount Waverley, Australia	1-10	3	1
21	Hillworth SolutionsPartial evidence “At Hillworth Solutions, we embody the spirit of Australian innovation, offering bespoke IT services and software development that is proudly home-grown and reinvested back into…” Source: company website · checked Sep 1, 2026	Adelaide, Australia	1-10	2	2
22	Congruent Labs PTY LTDPartial evidence “Congruent Labs offers specialised software development solutions and tailored information security services.” Source: company website · checked Sep 1, 2026	Canberra, Australia	1-10	2	1
23	CompileIndirect evidence Source: company website · checked Sep 1, 2026	Gold Coast, Australia	1-10	2	1

Showing 23 of 42 defense technology software startups based in Australia

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Defense technology software startups based in Australia at a glance

As of Sep 1, 2026

1-10Median size (employees)

CanberraLargest hub · 5 HQs

78Contacts with mobile numbers

Sep 1, 2026Data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

1,001-5,000

10001+

Defense technology software startups by metro

Metro	Companies
Defense technology software startups in Canberra	5
Defense technology software startups in Adelaide	4
Defense technology software startups in Melbourne	4
Defense technology software startups in Sydney	3
Defense technology software startups in Fortitude Valley	2
Defense technology software startups in Brisbane	2
Defense technology software startups in Mount Waverley	2

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 technology software startups, so some rows will be adjacent to the category rather than pure plays. The description and evidence rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
What qualifies: Companies headquartered in Australia whose own description of what they do matches “defense technology software startups”. Matching reads each company's description, not its industry code or its name.
What we exclude: Companies whose own description does not clearly place them among defense technology software startups, 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 an evidence rating so you can judge each match yourself.
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, 366 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 1, 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

How many defense technology software startups are there based in Australia?

There are 42 defense technology software startups headquartered in Australia as of September 2026 (RevenueBase).

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 technology software startups?

Canberra leads with 5 headquartered companies, followed by Adelaide (4) and Melbourne (4).

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 366 verified decision-maker contacts tracked across these 42 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 1, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.