Company lists · Data refreshed September 2026

Top 25 Security posture management companies based in Australia

Name: Security posture management companies based in Australia
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 6, 2026 437 companies tracked

RevenueBase identified 437 security posture management companies headquartered in Australia as of September 2026 and tracks 3,442 professional contacts across them, including 1,203 with verified work emails and 163 with mobile numbers. Sydney is the largest hub.

This list covers security posture management companies 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 6, 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 6, 2026 86% judged on-target in blind review

437Companies

3,442Contacts tracked

1,203Verified emails

163Mobile numbers

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest security posture management companies based in Australia

Ranked by team size

Top 25 of 437 security posture management companies based in Australia, ranked by team size, largest first. Data refreshed Sep 6, 2026. RevenueBase Smart Search rates how each company's information relates to security posture management companies: 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	Triskele Labs	Indirect evidence	Melbourne, AustraliaHQ checked Sep 6, 2026	51-200	123 contacts →
	Indirect evidence “Triskele Labs is one of Australia’s fastest growing cybersecurity companies.” Source: RevenueBase Database · checked Sep 6, 2026
2	Infotrust	Partial evidence	Sydney, AustraliaHQ checked Sep 6, 2026	201-500	122 contacts →
	Partial evidence “Infotrust (ITS) is Australia’s leading cyber security and managed technology services provider listed on the ASX.” Source: RevenueBase Database · checked Sep 6, 2026
3	ISEC	Strong evidence	Alexandria, AustraliaHQ checked Sep 6, 2026	201-500	87 contacts →
	Strong evidence “Established in 2001, ISEC is a leading provider of protective security, safety, risk management, and training services to the corporate, commercial and government sectors.” Source: RevenueBase Database · checked Sep 6, 2026
4	National Protective Services	Partial evidence	South Melbourne, AustraliaHQ checked Sep 6, 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 6, 2026
5	Stickmancyber	Indirect evidence	Macquarie Park, AustraliaHQ checked Sep 6, 2026	51-200	72 contacts →
	Indirect evidence “At StickmanCyber we are on a mission to create a digital world that is safe for everyone.” Source: RevenueBase Database · checked Sep 6, 2026
6	Northbridge Systems	Partial evidence	Sydney, AustraliaHQ checked Sep 6, 2026	51-200	70 contacts →
	Partial evidence “Northbridge is an Australian-owned cybersecurity services provider with more than 25 years’ experience delivering engineered, integrated and fully managed security services to…” Source: RevenueBase Database · checked Sep 6, 2026
7	Ipsec PTY LTD	Partial evidence	Cremorne, AustraliaHQ checked Sep 6, 2026	11-50	57 contacts →
	Partial evidence “IPSec are specialists in information asset and cyber protection; security experts who know how to mitigate cyber risk by assisting in the protection of valuable intelligence…” Source: RevenueBase Database · checked Sep 6, 2026
8	Advent Security Australia & NEW Zealand	Partial evidence	Melbourne, AustraliaHQ checked Sep 6, 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 6, 2026
9	Fortis Security	Partial evidence	Melbourne, AustraliaHQ checked Sep 6, 2026	51-200	51 contacts →
	Partial evidence “Welcome to Fortis Security, founded in September of 2013, Fortis has grown year on year with customer support.” Source: RevenueBase Database · checked Sep 6, 2026
10	Emerging IT	Indirect evidence	Mulgrave, AustraliaHQ checked Sep 6, 2026	51-200	46 contacts →
	Indirect evidence “Clarity in a complex world.” Source: RevenueBase Database · checked Sep 6, 2026
11	Vectra	Strong evidence	Adelaide, AustraliaHQ checked Sep 6, 2026	51-200	42 contacts →
	Strong evidence “Vectra, an Ensign company, is Australia’s trusted partner for security consulting, risk management, compliance, and managed services.” Source: RevenueBase Database · checked Sep 6, 2026
12	Seccom Global	Partial evidence	Sydney, AustraliaHQ checked Sep 6, 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 6, 2026
13	Ionize	Partial evidence	Canberra, AustraliaHQ checked Sep 6, 2026	51-200	35 contacts →
	Partial evidence “When it comes to security there's no shortage of companies ready to tell you about your vulnerabilities.” Source: RevenueBase Database · checked Sep 6, 2026
14	NSB Cyber	Partial evidence	Sydney, AustraliaHQ checked Sep 6, 2026	11-50	33 contacts →
	Partial evidence “NSB Cyber is an Australian-founded, privately owned cyber security company based in Sydney.” Source: RevenueBase Database · checked Sep 6, 2026
15	CSO Group	Partial evidence	Sydney, AustraliaHQ checked Sep 6, 2026	11-50	31 contacts →
	Partial evidence “CSO Group provides ICT security services and solutions to protect Australian businesses from advanced cyber threats.” Source: RevenueBase Database · checked Sep 6, 2026
16	NUEVA	Indirect evidence	Sydney, AustraliaHQ checked Sep 6, 2026	51-200	30 contacts →
	Indirect evidence “At Nueva, we aim to create a safer digital environment by providing innovative and customised cybersecurity solutions for our clients.” Source: RevenueBase Database · checked Sep 6, 2026
17	AVA Group	Strong evidence	Mulgrave, AustraliaHQ checked Sep 6, 2026	51-200	28 contacts →
	Strong evidence “Ava Group is a market leader of risk management services and technologies, trusted by some of the most security conscious commercial, industrial, military and government clients…” Source: RevenueBase Database · checked Sep 6, 2026
18	Datcom Cloud	Indirect evidence	Sydney, AustraliaHQ checked Sep 6, 2026	11-50	26 contacts →
	Indirect evidence “Minimise the risk of a cybersecurity incident.” Source: RevenueBase Database · checked Sep 6, 2026
19	Borderless CS	Indirect evidence	Melbourne, AustraliaHQ checked Sep 6, 2026	11-50	26 contacts →
	Indirect evidence “About Us - Australia’s leading cybersecurity specialist, delivering comprehensive protection by Australian-based consultants only-no offshore teams- 100% cybersecurity-focused…” Source: RevenueBase Database · checked Sep 6, 2026
20	Fortian	Strong evidence	Melbourne, AustraliaHQ checked Sep 6, 2026	11-50	25 contacts →
	Strong evidence “Fortian is a leading Australian company specialising in cyber security, privacy, and technology risk management.” Source: RevenueBase Database · checked Sep 6, 2026
21	Group 1 Security	Indirect evidence	Sydney, AustraliaHQ checked Sep 6, 2026	201-500	25 contacts →
	Indirect evidence “FreeCall 1800 GROUP 1.” Source: RevenueBase Database · checked Sep 6, 2026
22	Silentgrid Security	Partial evidence	Sydney, AustraliaHQ checked Sep 6, 2026	11-50	23 contacts →
	Partial evidence “SilentGrid is an offensive security consultancy with a focus on adversary simulation and penetration testing.” Source: RevenueBase Database · checked Sep 6, 2026
23	AMA Security	Partial evidence	Adelaide, AustraliaHQ checked Sep 6, 2026	51-200	21 contacts →
	Partial evidence “AMA Security is a provider of strategically tailored security solutions for commercial, business & industry, Government and Defence clients.” Source: RevenueBase Database · checked Sep 6, 2026
24	Surecity Networks	Indirect evidence	South Melbourne, AustraliaHQ checked Sep 6, 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 6, 2026
25	Tanto Security	Partial evidence	Melbourne, AustraliaHQ checked Sep 6, 2026	11-50	19 contacts →
	Partial evidence “We provide offensive cyber security services to world leading organisations.” Source: RevenueBase Database · checked Sep 6, 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: security posture management companies. 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 security posture management companies.
Partial evidence: Its own public description names part of security posture management companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name security posture management companies. 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 437 security posture management companies based in Australia

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 1,203 reachable decision-makers.

Free signup · no credit card

View the full list →

Security posture management companies based in Australia at a glance

As of Sep 6, 2026

35.0%Verified-email coverage

4.7%Mobile-number coverage

7.9Average contacts per company

1-10Median size (employees)

22.4%Largest-city concentration · Sydney

Sep 6, 2026Page data refreshed

Companies by employee count

1-10

246

11-50

131

51-200

201-500

501-1,000

1,001-5,000

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

1,1230–30

7531–60

061–90

090–180

5180+

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 security posture management companies, 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 “security posture management companies”. 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 security posture management companies), 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 security posture management companies, 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, 1,203 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 6, 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.

Security posture management companies 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 security posture management companies, 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 security posture management companies are there based in Australia?

RevenueBase identified 437 security posture management companies 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?

Triskele Labs, headquartered in Melbourne, tops this list with the largest team on record.

Which city has the most security posture management companies?

Sydney leads with 98 headquartered companies, followed by Melbourne (76) and Brisbane (28).

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 1,203 verified decision-maker contacts tracked across these 437 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 6, 2026.

Ready to reach these companies? Verified emails and direct dials for all 437 security posture management companies based in Australia. Start with a free account, no credit card.

Download this list →

Related lists

Security posture management companies by geography

Browse the directory

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.