Company lists · Data refreshed September 2026

Top 25 Application security services based in Australia

Name: Application security services based in Australia
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 156 companies tracked

RevenueBase identified 156 application security services headquartered in Australia as of September 2026 and tracks 1,086 professional contacts across them, including 356 with verified work emails. Sydney is the largest hub.

This list covers application security services 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 21, 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 21, 2026 86% judged on-target in blind review

156Companies

1,086Contacts tracked

356Verified emails

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The 25 largest application security services based in Australia

Ranked by team size

Top 25 of 156 application security services based in Australia, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to application security services: 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 21, 2026	51-200	123 contacts →
	Indirect evidence “Triskele Labs is one of Australia’s fastest growing cybersecurity companies.” Source: RevenueBase Database · checked Sep 21, 2026
2	3columns	Partial evidence	502, AustraliaHQ checked Sep 21, 2026	51-200	61 contacts →
	Partial evidence “Discover 3Columns, your premier destination for cutting-edge cyber security solutions.” Source: RevenueBase Database · checked Sep 21, 2026
3	Vectra	Partial evidence	Adelaide, AustraliaHQ checked Sep 21, 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 21, 2026
4	Silentgrid Security	Partial evidence	Sydney, AustraliaHQ checked Sep 21, 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 21, 2026
5	Tanto Security	Partial evidence	Melbourne, AustraliaHQ checked Sep 21, 2026	11-50	19 contacts →
	Partial evidence “We provide offensive cyber security services to world leading organisations.” Source: RevenueBase Database · checked Sep 21, 2026
6	Threat Intelligence	Indirect evidence	Sydney, AustraliaHQ checked Sep 21, 2026	11-50	19 contacts →
	Indirect evidence “Threat Intelligence is different.” Source: RevenueBase Database · checked Sep 21, 2026
7	Cybersecon	Partial evidence	Melbourne, AustraliaHQ checked Sep 21, 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 21, 2026
8	Zynet PTY LTD	Partial evidence	Tullamarine, AustraliaHQ checked Sep 21, 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 21, 2026
9	Sentaris	Partial evidence	Melbourne, AustraliaHQ checked Sep 21, 2026	11-50	14 contacts →
	Partial evidence “Sentaris (a certified B Corporation) is an Australian security services provider specialising in cyber assurance and incident response services.” Source: RevenueBase Database · checked Sep 21, 2026
10	Spartans Security	Indirect evidence	Cremorne, AustraliaHQ checked Sep 21, 2026	11-50	14 contacts →
	Indirect evidence “Facing the Complexities of Cybersecurity?” Source: RevenueBase Database · checked Sep 21, 2026
11	Cosive	Partial evidence	Melbourne, AustraliaHQ checked Sep 21, 2026	11-50	13 contacts →
	Partial evidence “We help organisations get better at Security Operations and Cyber Threat Intelligence with specialised consulting, engineering, and managed security platforms.” Source: RevenueBase Database · checked Sep 21, 2026
12	Parabellum	Indirect evidence	Sydney, AustraliaHQ checked Sep 21, 2026	11-50	13 contacts →
	Indirect evidence “At Parabellum, we help organisations see clearly and act confidently in a complex digital world.” Source: RevenueBase Database · checked Sep 21, 2026
13	Elttam	Indirect evidence	Melbourne, AustraliaHQ checked Sep 21, 2026	11-50	12 contacts →
	Indirect evidence “Expert-led penetration testing, supported by AI-assisted analysis, to uncover real weaknesses and strengthen systems against real-world threats.” Source: RevenueBase Database · checked Sep 21, 2026
14	Galah Cyber	Indirect evidence	Sydney, AustraliaHQ checked Sep 21, 2026	11-50	12 contacts →
	Indirect evidence “We work with startups, scale-ups, and large enterprises to assess the maturity of their appsec programs and provide clear, contextual, and relevant guidance towards addressing…” Source: RevenueBase Database · checked Sep 21, 2026
15	Volkis	Partial evidence	Sydney, AustraliaHQ checked Sep 21, 2026	11-50	10 contacts →
	Partial evidence “Volkis is a dedicated information security consultancy that provides penetration testing, security assessment, red team, GRC, and training services at its core.” Source: RevenueBase Database · checked Sep 21, 2026
16	Cyber Audit Team	Partial evidence	South East Queensland, AustraliaHQ checked Sep 21, 2026	11-50	9 contacts →
	Partial evidence “Cyber Audit Team is a leading multi-disciplinary Australian cyber security company offering holistic 'end-to-end' solutions, ensuring that our clients' businesses are operating in…” Source: RevenueBase Database · checked Sep 21, 2026
17	Haksec Group	Indirect evidence	Sunshine Coast, AustraliaHQ checked Sep 21, 2026	1-10	8 contacts →
	Indirect evidence “Haksec is a small cybersecurity firm based in Queensland, Australia founded by Luke Stephens (hakluke).” Source: RevenueBase Database · checked Sep 21, 2026
18	Dotsec	Partial evidence	Brisbane, AustraliaHQ checked Sep 21, 2026	11-50	7 contacts →
	Partial evidence “dotSec is a professional cyber security organisation that was founded in on a single premise: A business that treats security as a strategic asset should be able to operate with…” Source: RevenueBase Database · checked Sep 21, 2026
19	Crysp Consulting	Indirect evidence	Southbank, AustraliaHQ checked Sep 21, 2026	11-50	7 contacts →
	Indirect evidence “Crysp Consulting (Crysp) was founded by two professionals with collective experience of more than 35 years in the industry.” Source: RevenueBase Database · checked Sep 21, 2026
20	Shea Security	Partial evidence	Melbourne, AustraliaHQ checked Sep 21, 2026	1-10	7 contacts →
	Partial evidence “Operating from Melbourne, Australia, we offer security testing and training for Australia and specialised remote testing for countries including Ireland, the United Kingdom, the…” Source: RevenueBase Database · checked Sep 21, 2026
21	Iqbox PTY LTD	Partial evidence	Sydney, AustraliaHQ checked Sep 21, 2026	11-50	7 contacts →
	Partial evidence “IQBOX helps you pinpoint your organization’s most pressing vulnerabilities, eliminate critical threats, and implement a security program that leaves you free to focus on…” Source: RevenueBase Database · checked Sep 21, 2026
22	Project Black	Indirect evidence	Sydney, AustraliaHQ checked Sep 21, 2026	1-10	6 contacts →
	Indirect evidence “Project Black is a CREST accredited Australian cybersecurity consultancy providing exceptional, transparent, and value-driven solutions.” Source: RevenueBase Database · checked Sep 21, 2026
23	DVULN	Indirect evidence	Sydney, AustraliaHQ checked Sep 21, 2026	1-10	6 contacts →
	Indirect evidence “Founded in 2016, Dvuln is a globally CREST-certified cybersecurity firm specialising in advanced penetration testing, adversary simulation, attacker-led threat hunting, and…” Source: RevenueBase Database · checked Sep 21, 2026
24	Proveho Networks	Partial evidence	Melbourne, AustraliaHQ checked Sep 21, 2026	11-50	5 contacts →
	Partial evidence “Secure computing and digital security transformation.” Source: RevenueBase Database · checked Sep 21, 2026
25	Irradiate Security	Partial evidence	Canberra, AustraliaHQ checked Sep 21, 2026	1-10	5 contacts →
	Partial evidence “Irradiate Security is a cyber security focused organisation that aims to promote safe online practices for Australian businesses.” Source: RevenueBase Database · checked Sep 21, 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: application security services. 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 application security services.
Partial evidence: Its own public description names part of application security services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name application security services. 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 156 application security services based in Australia

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Application security services based in Australia at a glance

As of Sep 21, 2026

32.8%Verified-email coverage

7.0Average contacts per company

1-10Median size (employees)

25.6%Largest-city concentration · Sydney

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

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 156 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 application security services, 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 “application security services”. 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 application security services), 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 application security services, 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, 356 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 21, 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.

Application security services by metro

Application security services in Sydney40
Application security services in Melbourne34

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 application security services, 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 application security services are there based in Australia?

RevenueBase identified 156 application security services 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 application security services?

Sydney leads with 40 headquartered companies, followed by Melbourne (34) and Brisbane (12).

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 356 verified decision-maker contacts tracked across these 156 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 21, 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.