Company lists · Data verified August 2026

Top 19 Defense systems integrators based in Australia

Name: Defense systems integrators based in Australia
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 34 companies tracked

There are 34 defense systems integrators headquartered in Australia (RevenueBase, August 2026). RevenueBase tracks 2,885 professional contacts across them, including 827 with verified work emails and 183 with mobile numbers. Adelaide is the largest hub.

This list covers defense systems integrators headquartered in Australia, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Data current as of August 28, 2026.

34Companies

2,885Contacts tracked

827Verified emails

183Mobile numbers

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The 19 largest defense systems integrators based in Australia

Ranked by team size

Top 19 of 34 defense systems integrators based in Australia, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	Leidos Australia	Scoresby	1,001-5,000	965	30
2	Saab Australia	Rockingham	501-1,000	717	16
3	Nova Systems	Adelaide	501-1,000	597	463
4	Daronmont Technologies	Doncaster	51-200	119	77
5	Thomas Global Systems	Sydney Olympic Park	51-200	96	54
6	Rohde & Schwarz Australia	Mulgrave	51-200	91	55
7	EM Solutions PTY LTD	Brisbane	51-200	79	49
8	Tectonica	West Melbourne	11-50	37	18
9	Hensoldt Australia & NEW Zealand	Fyshwick	11-50	23	9
10	Advanced Design Technology PTY LTD	Canberra	11-50	15	13
11	Black6	Gold Coast	11-50	14	13
12	Endpoint Focus	Melbourne	11-50	11	9
13	Unitronix	Cooranbong	1-10	11	5
14	Bellinger Systems PTY LTD	Rydalmere	11-50	9	6
15	Lynx Integrated Systems	Balcatta	11-50	7	4
16	Clearbox Systems	Macquarie Park	11-50	5	2
17	Buzzworks	Brisbane	1-10	5	1
18	Freespace Solutions PTY LTD	Adelaide	1-10	3	2
19	Jirotech	Melbourne	11-50	2	1

Showing 19 of 34 defense systems integrators based in Australia

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Defense systems integrators based in Australia at a glance

As of Aug 28, 2026

11-50Median size (employees)

AdelaideLargest hub · 3 HQs

183Contacts with mobile numbers

1Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

501-1,000

1,001-5,000

Defense systems integrators by metro

Metro	Companies
Defense systems integrators in Adelaide	3
Defense systems integrators in Melbourne	3
Defense systems integrators in Brisbane	3
Defense systems integrators in Queanbeyan	1
Defense systems integrators in Sydney Olympic Park	1
Defense systems integrators in Macquarie Park	1
Defense systems integrators in Gold Coast	1
Defense systems integrators in Silverwater	1

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “defense systems integrators”, with match quality audited by blind human judging, and headquartered in Australia.
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: Contact records re-verify on a rolling cadence; 1 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many defense systems integrators are there based in Australia?

There are 34 defense systems integrators headquartered in Australia as of August 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 systems integrators?

Adelaide leads with 3 headquartered companies, followed by Melbourne (3) and Brisbane (3).

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 827 verified decision-maker contacts tracked across these 34 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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Related lists

Defense systems integrators by geography

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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.