Company lists · Data refreshed September 2026

Top 25 Security research firms based in Sydney, Australia

Name: Security research firms 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 107 companies tracked

RevenueBase identified 107 security research firms headquartered in Sydney, Australia as of September 2026 and tracks 569 professional contacts across them, including 235 with verified work emails and 25 with mobile numbers. Melbourne is the largest hub.

This list covers security research firms 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

107Companies

569Contacts tracked

235Verified emails

25Mobile numbers

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The 25 largest security research firms based in Sydney, Australia

Ranked by team size

Top 25 of 107 security research firms 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 security research firms: 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	Northbridge Systems	Partial evidence	Sydney, AustraliaHQ checked Sep 13, 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 13, 2026
2	Seccom Global	Partial evidence	Sydney, AustraliaHQ checked Sep 13, 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 13, 2026
3	NSB Cyber	Partial evidence	Sydney, AustraliaHQ checked Sep 13, 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 13, 2026
4	Gridware	Indirect evidence	Sydney, AustraliaHQ checked Sep 13, 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 13, 2026
5	Silentgrid Security	Partial evidence	Sydney, AustraliaHQ checked Sep 13, 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 13, 2026
6	Razilio	Indirect evidence	Sydney, AustraliaHQ checked Sep 13, 2026	1-10	19 contacts →
	Indirect 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 13, 2026
7	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
8	NCC Group Apac	Indirect evidence	Sydney, AustraliaHQ checked Sep 13, 2026	1,001-5,000	18 contacts →
	Indirect evidence “NCC Group exists to make the world safer and more secure.” Source: RevenueBase Database · checked Sep 13, 2026
9	Intrix Cyber Security	Partial evidence	Sydney, AustraliaHQ checked Sep 13, 2026	11-50	16 contacts →
	Partial evidence “Intrix Cyber Security protect businesses with our Information Security Services.” Source: RevenueBase Database · checked Sep 13, 2026
10	Skylight Cyber Security	Partial evidence	Sydney, AustraliaHQ checked Sep 13, 2026	11-50	15 contacts →
	Partial evidence “Skylight is a boutique cyber security practice providing high-end services to the modern enterprise.” Source: RevenueBase Database · checked Sep 13, 2026
11	Morrisec	Partial evidence	Sydney, AustraliaHQ checked Sep 13, 2026	11-50	14 contacts →
	Partial evidence “Morrisec provides tailored security strategies and services that align with each company’s specific threat landscape, risk profile, and strategic goals.” Source: RevenueBase Database · checked Sep 13, 2026
12	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
13	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
14	Cyberhub Group	Partial evidence	Sydney, AustraliaHQ checked Sep 13, 2026	11-50	9 contacts →
	Partial evidence “CyberHub was established with the aim of making Cyber Security more available to companies of all sizes.” Source: RevenueBase Database · checked Sep 13, 2026
15	Asontu	Partial evidence	Sydney, AustraliaHQ checked Sep 13, 2026	1-10	8 contacts →
	Partial evidence “We want to be the next generation of cyber security consultancy firms.” Source: RevenueBase Database · checked Sep 13, 2026
16	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
17	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
18	Cyberpulse	Partial evidence	Sydney, AustraliaHQ checked Sep 13, 2026	11-50	6 contacts →
	Partial evidence “CyberPulse partners with organisations to operationalise security across the full threat lifecycle, from governance and compliance through to detection, response, and continuous…” Source: RevenueBase Database · checked Sep 13, 2026
19	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
20	Cyberlinx	Partial evidence	Sydney, AustraliaHQ checked Sep 13, 2026	1-10	6 contacts →
	Partial 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
21	Vertex Cyber Security	Partial evidence	Sydney, AustraliaHQ checked Sep 13, 2026	11-50	6 contacts →
	Partial 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
22	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
23	Nsaa Security	Partial evidence	Sydney, AustraliaHQ checked Sep 13, 2026	1-10	5 contacts →
	Partial 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
24	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
25	DITNO	Partial evidence	Sydney, AustraliaHQ checked Sep 13, 2026	11-50	4 contacts →
	Partial evidence “Ditno helps organisations understand and reduce their Threat Exposure by focusing on the security risks that actually matter.” 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: security research firms. 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 research firms.
Partial evidence: Its own public description names part of security research firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name security research firms. 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 107 security research firms based in Sydney, Australia

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Security research firms based in Sydney, Australia at a glance

As of Sep 13, 2026

41.3%Verified-email coverage

4.4%Mobile-number coverage

5.3Average contacts per company

1-10Median size (employees)

45.8%Largest-city concentration · Melbourne

Sep 13, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

1,001-5,000

Freshness & accuracy

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

Email last verified

Median 15.0d

1920–30

4331–60

061–90

090–180

0180+

Company record updated

Median 64.0d

00–30

25031–60

22161–90

5290–180

46180+

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 research firms, 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 “security research firms”. 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 research firms), 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 research firms, 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, 235 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.

Security research firms by metro in Australia

Security research firms in Melbourne49
Security research firms in Sydney38

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 research firms, 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 research firms are there based in Sydney, Australia?

RevenueBase identified 107 security research firms 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?

Northbridge Systems, headquartered in Sydney, tops this list with the largest team on record.

Which city has the most security research firms?

Melbourne leads with 49 headquartered companies, followed by Sydney (38) and Brisbane (18).

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 235 verified decision-maker contacts tracked across these 107 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.