Company lists · Data refreshed September 2026

Top 24 Software vulnerability assessment companies based in Sydney, Australia

Name: Software vulnerability assessment companies based in Sydney, Australia
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 13, 2026 44 companies tracked

RevenueBase identified 44 software vulnerability assessment companies headquartered in Sydney, Australia as of September 2026 and tracks 201 professional contacts across them, including 64 with verified work emails and 7 with mobile numbers. Sydney is the largest hub.

This list covers software vulnerability assessment companies headquartered in Sydney, 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 13, 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 13, 2026 86% judged on-target in blind review

44Companies

201Contacts tracked

64Verified emails

7Mobile numbers

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The 24 largest software vulnerability assessment companies based in Sydney, Australia

Ranked by team size

Top 24 of 44 software vulnerability assessment companies based in Sydney, Australia, ranked by team size, largest first. Data refreshed Sep 13, 2026. RevenueBase Smart Search rates how each company's information relates to software vulnerability assessment 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	Silentgrid Security	Indirect evidence	Sydney, AustraliaHQ checked Sep 13, 2026	11-50	23 contacts →
	Indirect evidence “SilentGrid is an offensive security consultancy with a focus on adversary simulation and penetration testing.” Source: RevenueBase Database · checked Sep 13, 2026
2	Threat Intelligence	Indirect evidence	Sydney, AustraliaHQ checked Sep 13, 2026	11-50	19 contacts →
	Indirect evidence “Threat Intelligence is different.” Source: RevenueBase Database · checked Sep 13, 2026
3	Parabellum	Indirect evidence	Sydney, AustraliaHQ checked Sep 13, 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 13, 2026
4	Galah Cyber	Indirect evidence	Sydney, AustraliaHQ checked Sep 13, 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 13, 2026
5	Volkis	Partial evidence	Sydney, AustraliaHQ checked Sep 13, 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 13, 2026
6	Cliffside Cybersecurity	Indirect evidence	Sydney, AustraliaHQ checked Sep 13, 2026	11-50	8 contacts →
	Indirect evidence “At Cliffside, we believe the cybersecurity industry has a truth problem: vendors oversell, consultants overcomplicate, and products are pushed over real solutions.” Source: RevenueBase Database · checked Sep 13, 2026
7	Iqbox PTY LTD	Partial evidence	Sydney, AustraliaHQ checked Sep 13, 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 13, 2026
8	DVULN	Indirect evidence	Sydney, AustraliaHQ checked Sep 13, 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 13, 2026
9	Cyberlinx	Indirect evidence	Sydney, AustraliaHQ checked Sep 13, 2026	1-10	6 contacts →
	Indirect evidence “Cyberlinx is a premier cyber security solutions and services provider, we offer a comprehensive range of cyber security solutions, including, infrastructure and network security…” Source: RevenueBase Database · checked Sep 13, 2026
10	Vertex Cyber Security	Indirect evidence	Sydney, AustraliaHQ checked Sep 13, 2026	11-50	6 contacts →
	Indirect evidence “Vertex Cyber Security provides an extensive Cyber Security capability of Technology and Security Services for organisations across Sydney.” Source: RevenueBase Database · checked Sep 13, 2026
11	Fort1 PTY LTD	Indirect evidence	Sydney, AustraliaHQ checked Sep 13, 2026	1-10	5 contacts →
	Indirect evidence “Fort1: Comprehensive Cybersecurity Services based in Australia.” Source: RevenueBase Database · checked Sep 13, 2026
12	Nsaa Security	Indirect evidence	Sydney, AustraliaHQ checked Sep 13, 2026	1-10	5 contacts →
	Indirect evidence “Who are NSAA Security NSAA Security team have years of experience working within highly demanding information security environments.” Source: RevenueBase Database · checked Sep 13, 2026
13	Centropy Services & Solutions	Indirect evidence	Sydney, AustraliaHQ checked Sep 13, 2026	1-10	4 contacts →
	Indirect evidence “The term Centropy is a scientific reference to the reversal of chaos or entropy.” Source: RevenueBase Database · checked Sep 13, 2026
14	Duasynt	Indirect evidence	Sydney, AustraliaHQ checked Sep 13, 2026	11-50	4 contacts →
	Indirect evidence “Privately funded information security company based in Australia.” Source: RevenueBase Database · checked Sep 13, 2026
15	Assuredly	Indirect evidence	Sydney, AustraliaHQ checked Sep 13, 2026	1-10	3 contacts →
	Indirect evidence “Assuredly is on a mission to achieve information cybersecurity assurance in a reliable, repeatable, and simplified process that helps to give organisations cyber resilience.” Source: RevenueBase Database · checked Sep 13, 2026
16	Undark Solutions Undark.io	Indirect evidence	Sydney, AustraliaHQ checked Sep 13, 2026	1-10	2 contacts →
	Indirect evidence “Undark Solutions, a boutique cybersecurity consultancy founded in 2009, empowers enterprises with robust offensive & defensive solutions, including preventative strategies &…” Source: RevenueBase Database · checked Sep 13, 2026
17	Aurian Security	Indirect evidence	Sydney, AustraliaHQ checked Sep 13, 2026	1-10	2 contacts →
	Indirect evidence “Aurian is a leading provider of information security services in Australia.” Source: RevenueBase Database · checked Sep 13, 2026
18	Xigsaw	Indirect evidence	Sydney, AustraliaHQ checked Sep 13, 2026	1-10	2 contacts →
	Indirect evidence “XIGSAW IS SOLVING THE IT SECURITY PUZZLE Businesses buy on advise and desire the best outcome.” Source: RevenueBase Database · checked Sep 13, 2026
19	Cybernod	Indirect evidence	Sydney, AustraliaHQ checked Sep 13, 2026	1-10	2 contacts →
	Indirect evidence “We bring together everything that is required to inform and help you secure your presence on the internet and give you a view of how exposed your business is to cyber attacks.” Source: RevenueBase Database · checked Sep 13, 2026
20	Core Sentinel	Indirect evidence	Sydney, AustraliaHQ checked Sep 13, 2026	1-10	2 contacts →
	Indirect evidence “Core Sentinel: Australia’s Premier Penetration Testing & Cybersecurity Experts.” Source: RevenueBase Database · checked Sep 13, 2026
21	Cyberheuristic	Indirect evidence	Sydney, AustraliaHQ checked Sep 13, 2026	1-10	2 contacts →
	Indirect evidence “Our mission is equip people to achieve superiority in defending their valuable assets and information against cyber threats by providing Cyber security testing, consulting…” Source: RevenueBase Database · checked Sep 13, 2026
22	Redbelts	Indirect evidence	Sydney, AustraliaHQ checked Sep 13, 2026	1-10	1 contacts →
	Indirect evidence “A specialist Cyber Security consultancy, partnering with organisations through CISO-as-a-Service, Third Party Risk Management and Penetration Testing Solutions.” Source: RevenueBase Database · checked Sep 13, 2026
23	Intercepted	Indirect evidence	Sydney, AustraliaHQ checked Sep 13, 2026	1-10	1 contacts →
	Indirect evidence “IS THIS YOU?” Source: RevenueBase Database · checked Sep 13, 2026
24	Cyberwave Information Security	Indirect evidence	Sydney, AustraliaHQ checked Sep 13, 2026	1-10	1 contacts →
	Indirect evidence “At CyberWave, we are a leading provider of penetration testing services, backed by founders with 20 years of extensive IT and security experience.” Source: RevenueBase Database · checked Sep 13, 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: software vulnerability assessment 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 software vulnerability assessment companies.
Partial evidence: Its own public description names part of software vulnerability assessment companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name software vulnerability assessment 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 24 of 44 software vulnerability assessment companies based in Sydney, Australia

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Software vulnerability assessment companies based in Sydney, Australia at a glance

As of Sep 13, 2026

31.8%Verified-email coverage

3.5%Mobile-number coverage

4.6Average contacts per company

1-10Median size (employees)

100.0%Largest-city concentration · Sydney

Sep 13, 2026Page data refreshed

Companies by employee count

1-10

11-50

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 17.0d

540–30

1031–60

061–90

090–180

0180+

Company record updated

Median 63.0d

00–30

9231–60

8061–90

1490–180

15180+

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 software vulnerability assessment 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 Sydney, Australia whose own description of what they do matches “software vulnerability assessment 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 software vulnerability assessment 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 software vulnerability assessment companies, and records with no verified work email. Companies headquartered outside Sydney 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, 64 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 13, 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.

Software vulnerability assessment companies by metro in Australia

Software vulnerability assessment companies in Sydney44
Software vulnerability assessment companies in Melbourne33

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 software vulnerability assessment 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 software vulnerability assessment companies are there based in Sydney, Australia?

RevenueBase identified 44 software vulnerability assessment companies headquartered in Sydney, 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?

Silentgrid Security, headquartered in Sydney, tops this list with the largest team on record.

Which city has the most software vulnerability assessment companies?

Sydney leads with 44 headquartered companies, followed by Melbourne (33) 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 64 verified decision-maker contacts tracked across these 44 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 13, 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.