Company lists · Data refreshed September 2026

Top 25 Defense industrial base security consultants based in Australia

Name: Defense industrial base security consultants based in Australia
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 343 companies tracked

RevenueBase identified 343 defense industrial base security consultants headquartered in Australia as of September 2026 and tracks 2,244 professional contacts across them, including 815 with verified work emails. Melbourne is the largest hub.

This list covers defense industrial base security consultants 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

343Companies

2,244Contacts tracked

815Verified emails

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The 25 largest defense industrial base security consultants based in Australia

Ranked by team size

Top 25 of 343 defense industrial base security consultants 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 industrial base security consultants: 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	National Protective Services	Partial evidence	South Melbourne, AustraliaHQ checked Sep 28, 2026	1,001-5,000	82 contacts →
	Partial evidence “National Protective Services is a leading professional security company, specialising in the provision of quality and tailored protective services and products to ensure optimum…” Source: RevenueBase Database · checked Sep 28, 2026
2	Advent Security Australia & NEW Zealand	Partial evidence	Melbourne, AustraliaHQ checked Sep 28, 2026	501-1,000	55 contacts →
	Partial evidence “Australian owned Advent Security has been a leader in providing exceptional, value-for-money services to local, national and international clients in the public, private and…” Source: RevenueBase Database · checked Sep 28, 2026
3	Security Consulting Group PTY LTD SCG	Strong evidence	Melbourne, AustraliaHQ checked Sep 28, 2026	51-200	52 contacts →
	Strong evidence “SCG specialises in providing independent security and communications engineering, and security threat and risk consultancy services, to clients operating in challenging security…” Source: RevenueBase Database · checked Sep 28, 2026
4	Securcom PTY LTD	Partial evidence	Brendale, AustraliaHQ checked Sep 28, 2026	51-200	51 contacts →
	Partial evidence “Established in the year Securcom has 20 years’ experience as a specialist security solution provider.” Source: RevenueBase Database · checked Sep 28, 2026
5	Vectra	Partial evidence	Adelaide, AustraliaHQ checked Sep 28, 2026	51-200	42 contacts →
	Partial evidence “Vectra, an Ensign company, is Australia’s trusted partner for security consulting, risk management, compliance, and managed services.” Source: RevenueBase Database · checked Sep 28, 2026
6	Seccom Global	Partial evidence	Sydney, AustraliaHQ checked Sep 28, 2026	11-50	41 contacts →
	Partial 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 28, 2026
7	Bluerydge	Indirect evidence	Fyshwick, AustraliaHQ checked Sep 28, 2026	51-200	41 contacts →
	Indirect evidence “Bluerydge delivers mission-secure capability, specialising in Cybersecurity, Technology, Artificial Intelligence (AI), and Robotics.” Source: RevenueBase Database · checked Sep 28, 2026
8	Austagencies PTY LTD	Indirect evidence	North Sydney, AustraliaHQ checked Sep 28, 2026	51-200	40 contacts →
	Indirect evidence “We are specialist industry specialists.” Source: RevenueBase Database · checked Sep 28, 2026
9	IPP Consulting PTY LTD	Partial evidence	Melbourne, AustraliaHQ checked Sep 28, 2026	51-200	37 contacts →
	Partial evidence “SECURITY AND TECHNOLOGY EXPERTS ENGINEERING FOR A BETTER WORLD.” Source: RevenueBase Database · checked Sep 28, 2026
10	Noetic	Indirect evidence	Canberra, AustraliaHQ checked Sep 28, 2026	51-200	35 contacts →
	Indirect evidence “Noetic challenges clients to think differently and adopt new approaches to find solutions.” Source: RevenueBase Database · checked Sep 28, 2026
11	Cyber Capability	Partial evidence	Canberra, AustraliaHQ checked Sep 28, 2026	51-200	30 contacts →
	Partial evidence “The Cyber Capability team has extensive experience with many of our principal consultants having worked at senior levels in Federal and State governments and the commercial…” Source: RevenueBase Database · checked Sep 28, 2026
12	The Security HUB	Partial evidence	Melbourne, AustraliaHQ checked Sep 28, 2026	201-500	29 contacts →
	Partial evidence “The Security Hub delivers a complete packaged security solution and a risk mitigation program to its clients.” Source: RevenueBase Database · checked Sep 28, 2026
13	Jigsaw Notions	Strong evidence	Canberra, AustraliaHQ checked Sep 28, 2026	51-200	28 contacts →
	Strong evidence “Jigsaw Notions is a professional services consultancy specialising in Cyber Security, Engineering, Procurement, and Management solutions, supporting Australian Industry and…” Source: RevenueBase Database · checked Sep 28, 2026
14	Fortian	Partial evidence	Melbourne, AustraliaHQ checked Sep 28, 2026	11-50	25 contacts →
	Partial evidence “Fortian is a leading Australian company specialising in cyber security, privacy, and technology risk management.” Source: RevenueBase Database · checked Sep 28, 2026
15	Gridware	Indirect evidence	Sydney, AustraliaHQ checked Sep 28, 2026	11-50	25 contacts →
	Indirect evidence “For most organisations in Australia, a data breach can be more than a PR disaster, it could be the final chapter.” Source: RevenueBase Database · checked Sep 28, 2026
16	Group 1 Security	Indirect evidence	Sydney, AustraliaHQ checked Sep 28, 2026	201-500	25 contacts →
	Indirect evidence “FreeCall 1800 GROUP 1.” Source: RevenueBase Database · checked Sep 28, 2026
17	Cyconsol	Partial evidence	Canberra, AustraliaHQ checked Sep 28, 2026	1-10	20 contacts →
	Partial evidence “Cyconsol is an Australian based professional service provider specialising in the delivery of cyber security and IT related business consulting and training services.” Source: RevenueBase Database · checked Sep 28, 2026
18	Surecity Networks	Indirect evidence	South Melbourne, AustraliaHQ checked Sep 28, 2026	11-50	20 contacts →
	Indirect evidence “SureCity Networks is an Australian Cybersecurity firm with offices in Melbourne, Sydney, Brisbane and the UK, trusted by enterprises globally.” Source: RevenueBase Database · checked Sep 28, 2026
19	Towers Group PTY LTD	Indirect evidence	Melbourne, AustraliaHQ checked Sep 28, 2026	51-200	20 contacts →
	Indirect evidence “Towers Group Pty Ltd is an Australian-owned, Melbourne-based professional services company established in 2013.” Source: RevenueBase Database · checked Sep 28, 2026
20	Omen Security PTY LTD	Strong evidence	Melbourne, AustraliaHQ checked Sep 28, 2026	51-200	20 contacts →
	Strong evidence “OMEN provides specialist security solutions across a broad range of industries, including aviation and other critical infrastructure.” Source: RevenueBase Database · checked Sep 28, 2026
21	Razilio	Partial evidence	Sydney, AustraliaHQ checked Sep 28, 2026	1-10	19 contacts →
	Partial evidence “Razilio is a Sydney, Australia-based boutique cybersecurity consultancy that simplifies the management of cyber risk for businesses of all sizes.” Source: RevenueBase Database · checked Sep 28, 2026
22	SAHR	Strong evidence	Canberra, AustraliaHQ checked Sep 28, 2026	11-50	18 contacts →
	Strong evidence “SAHR is an Australian-owned professional services business providing niche consulting services to the Defence and National Security sector.” Source: RevenueBase Database · checked Sep 28, 2026
23	Cybersecon	Partial evidence	Melbourne, AustraliaHQ checked Sep 28, 2026	11-50	18 contacts →
	Partial evidence “CyberSecOn is an Information security company with a presence in Australia, USA and India.” Source: RevenueBase Database · checked Sep 28, 2026
24	Security Centric	Partial evidence	Sydney Cbd, AustraliaHQ checked Sep 28, 2026	11-50	17 contacts →
	Partial evidence “Security Centric is a boutique specialist information security consulting and services organisation.” Source: RevenueBase Database · checked Sep 28, 2026
25	Zynet PTY LTD	Partial evidence	Tullamarine, AustraliaHQ checked Sep 28, 2026	11-50	17 contacts →
	Partial evidence “Zynet is an Australian cyber security and IT services provider with more than 25 years of experience protecting organisations and keeping critical systems running.” 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 industrial base security consultants. 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 industrial base security consultants.
Partial evidence: Its own public description names part of defense industrial base security consultants, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name defense industrial base security consultants. 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 343 defense industrial base security consultants based in Australia

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Defense industrial base security consultants based in Australia at a glance

As of Sep 28, 2026

36.3%Verified-email coverage

6.5Average contacts per company

1-10Median size (employees)

21.3%Largest-city concentration · Melbourne

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

221

11-50

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 343 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 industrial base security consultants, 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 industrial base security consultants”. 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 industrial base security consultants), 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 industrial base security consultants, 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, 815 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 industrial base security consultants 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 industrial base security consultants, 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 industrial base security consultants are there based in Australia?

RevenueBase identified 343 defense industrial base security consultants 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?

National Protective Services, headquartered in South Melbourne, tops this list with the largest team on record.

Which city has the most defense industrial base security consultants?

Melbourne leads with 73 headquartered companies, followed by Sydney (58) and Canberra (38).

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 815 verified decision-maker contacts tracked across these 343 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.