Company lists · Data refreshed September 2026

Top 25 Network security companies based in Australia

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

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 293 companies tracked

RevenueBase identified 293 network security companies headquartered in Australia as of September 2026 and tracks 2,666 professional contacts across them, including 911 with verified work emails and 115 with mobile numbers. Sydney is the largest hub.

This list covers network security 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, how directly it supports the match, and when it was last checked. Data refreshed September 5, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 Match evidence on every row Refreshed Sep 5, 2026 86% judged on-target in blind review

293Companies

2,666Contacts tracked

911Verified emails

115Mobile numbers

Unlock all 293 companies Free signup · no credit card · 500 free credits

The 25 largest network security companies based in Australia

Ranked by team size

Top 25 of 293 network security companies based in Australia, ranked by team size, largest first. Data refreshed Sep 5, 2026. Evidence rates how directly each company's own description names network security companies: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	Triskele LabsIndirect evidence	Melbourne, AustraliaHQ checked Sep 5, 2026	51-200	123
	“Triskele Labs is one of Australia’s fastest growing cybersecurity companies.” Source: company website · checked Sep 5, 2026
2	StickmancyberIndirect evidence	Macquarie Park, AustraliaHQ checked Sep 5, 2026	51-200	72
	“At StickmanCyber we are on a mission to create a digital world that is safe for everyone.” Source: company website · checked Sep 5, 2026
3	Northbridge SystemsPartial evidence	Sydney, AustraliaHQ checked Sep 5, 2026	51-200	70
	“Northbridge is an Australian-owned cybersecurity services provider with more than 25 years’ experience delivering engineered, integrated and fully managed security services to…” Source: company website · checked Sep 5, 2026
4	3columnsPartial evidence	502, AustraliaHQ checked Sep 5, 2026	51-200	61
	“Discover 3Columns, your premier destination for cutting-edge cyber security solutions.” Source: company website · checked Sep 5, 2026
5	Ipsec PTY LTDPartial evidence	Cremorne, AustraliaHQ checked Sep 5, 2026	11-50	57
	“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: company website · checked Sep 5, 2026
6	DeploypartnersIndirect evidence	North Sydney, AustraliaHQ checked Sep 5, 2026	51-200	51
	“DeployPartners offer unique values and benefits that enable our clients and partners to differentiate on customer service.” Source: company website · checked Sep 5, 2026
7	Dimiya TechIndirect evidence	Melbourne, AustraliaHQ checked Sep 5, 2026	51-200	50
	“DIMIYA Tech is a Melbourne, Australia based- global Cybersecurity and IT services provider supporting organizations that require secure, scalable, and high-performance technology…” Source: company website · checked Sep 5, 2026
8	Wipro SheldeIndirect evidence	Melbourne, AustraliaHQ checked Sep 5, 2026	51-200	47
	“Our mission is to help our clients protect their assets, reputation, and customers from cyber threats, while also enabling them to embrace digital transformation and innovation…” Source: company website · checked Sep 5, 2026
9	Emerging ITIndirect evidence	Mulgrave, AustraliaHQ checked Sep 5, 2026	51-200	46
	“Clarity in a complex world.” Source: company website · checked Sep 5, 2026
10	Firstwave ASX FCTIndirect evidence	North Sydney, AustraliaHQ checked Sep 5, 2026	51-200	42
	“FirstWave is a global cybersecurity technology company formed in 2004.” Source: company website · checked Sep 5, 2026
11	Seccom GlobalPartial evidence	Sydney, AustraliaHQ checked Sep 5, 2026	11-50	41
	“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: company website · checked Sep 5, 2026
12	IonizePartial evidence	Canberra, AustraliaHQ checked Sep 5, 2026	51-200	35
	“When it comes to security there's no shortage of companies ready to tell you about your vulnerabilities.” Source: company website · checked Sep 5, 2026
13	AstralasIndirect evidence	Cremorne, AustraliaHQ checked Sep 5, 2026	51-200	35
	“Good people solving important problems.” Source: company website · checked Sep 5, 2026
14	Netpoleon ANZStrong evidence	Docklands, AustraliaHQ checked Sep 5, 2026	501-1,000	34
	“Originally founded in Netpoleon Group has become a leading provider of integrated security, networking solutions and value added services throughout the APAC region.” Source: company website · checked Sep 5, 2026
15	NSB CyberPartial evidence	Sydney, AustraliaHQ checked Sep 5, 2026	11-50	33
	“NSB Cyber is an Australian-founded, privately owned cyber security company based in Sydney.” Source: company website · checked Sep 5, 2026
16	CyberxcelIndirect evidence	Brisbane, AustraliaHQ checked Sep 5, 2026	n/a	33
	“Founded by Sohail Ershadi, a distinguished cybersecurity expert with over a decade of experience in the IT industry, CyberXcel has rapidly emerged as a leader in cybersecurity…” Source: company website · checked Sep 5, 2026
17	Division 5Partial evidence	Brisbane, AustraliaHQ checked Sep 5, 2026	11-50	32
	“Division 5 is focused on building long-term relationships with our clients as their trusted cyber security advisor.” Source: company website · checked Sep 5, 2026
18	NUEVAIndirect evidence	Sydney, AustraliaHQ checked Sep 5, 2026	51-200	30
	“At Nueva, we aim to create a safer digital environment by providing innovative and customised cybersecurity solutions for our clients.” Source: company website · checked Sep 5, 2026
19	Datcom CloudIndirect evidence	Sydney, AustraliaHQ checked Sep 5, 2026	11-50	26
	“Minimise the risk of a cybersecurity incident.” Source: company website · checked Sep 5, 2026
20	Muttii TechnologiesIndirect evidence	Canberra, AustraliaHQ checked Sep 5, 2026	51-200	26
	“Muttii is a global leader in AI-powered cybersecurity, providing the essential cybersecurity platform to secure organisations today and for an ever-changing future.” Source: company website · checked Sep 5, 2026
21	ThreatdefencePartial evidence	Sydney, AustraliaHQ checked Sep 5, 2026	11-50	24
	“ThreatDefence provides innovative Security Operations and cyber defence solutions to MSPs and Enterprises.” Source: company website · checked Sep 5, 2026
22	Surecity NetworksPartial evidence	South Melbourne, AustraliaHQ checked Sep 5, 2026	11-50	20
	“SureCity Networks is an Australian Cybersecurity firm with offices in Melbourne, Sydney, Brisbane and the UK, trusted by enterprises globally.” Source: company website · checked Sep 5, 2026
23	CBR Cyber A Brennan CompanyPartial evidence	Forrest, AustraliaHQ checked Sep 5, 2026	11-50	19
	“We are Canberra's newest Cybersecurity company focusing on solutions for information security, connectivity and cloud technologies.” Source: company website · checked Sep 5, 2026
24	NCC Group ApacIndirect evidence	Sydney, AustraliaHQ checked Sep 5, 2026	1,001-5,000	18
	“NCC Group exists to make the world safer and more secure.” Source: company website · checked Sep 5, 2026
25	CyberseconPartial evidence	Melbourne, AustraliaHQ checked Sep 5, 2026	11-50	18
	“CyberSecOn is an Information security company with a presence in Australia, USA and India.” Source: company website · checked Sep 5, 2026

Showing 25 of 293 network security companies based in Australia

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 911 reachable decision-makers.

Free signup · no credit card

See all 293 companies

Network security companies based in Australia at a glance

As of Sep 5, 2026

1-10Median size (employees)

SydneyLargest hub · 57 HQs

115Contacts with mobile numbers

Sep 5, 2026Data refreshed

Companies by employee count

1-10

152

11-50

106

51-200

201-500

501-1,000

1,001-5,000

Verified emails by last verification

0–30

846

31–60

61–90

90–180

180+

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 network security companies, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in Australia whose own description of what they do matches “network security companies”. Matching reads each company's description, not its industry code or its name.
What we exclude: Companies whose own description does not clearly place them among network security 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 an evidence 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, 911 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 5, 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.

Network security companies by metro

Network security companies in Sydney57
Network security companies in Melbourne55

Frequently asked

How many network security companies are there based in Australia?

RevenueBase identified 293 network security 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 network security companies?

Sydney leads with 57 headquartered companies, followed by Melbourne (55) and Brisbane (21).

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 911 verified decision-maker contacts tracked across these 293 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 5, 2026.

Ready to reach these companies? Verified emails and direct dials for all 293 network security companies based in Australia. Start with a free account, no credit card.

Get the full list

Related lists

Network security companies by geography

Browse the directory

Browse: Companies home · All Australia lists · All Network security companies lists · New lists

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 SmartSearch, 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.