Company lists · Data refreshed September 2026

Top 25 Cybersecurity marketing agencies based in Australia

Name: Cybersecurity marketing agencies based in Australia
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 3, 2026 528 companies tracked

RevenueBase identified 528 cybersecurity marketing agencies headquartered in Australia as of September 2026 and tracks 4,637 professional contacts across them, including 1,758 with verified work emails and 305 with mobile numbers. Sydney is the largest hub.

This list covers cybersecurity marketing agencies 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 3, 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 Match evidence on every row Refreshed Sep 3, 2026 86% judged on-target in blind review

528Companies

4,637Contacts tracked

1,758Verified emails

305Mobile numbers

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The 25 largest cybersecurity marketing agencies based in Australia

Ranked by team size

Top 25 of 528 cybersecurity marketing agencies based in Australia, ranked by team size, largest first. Data refreshed Sep 3, 2026. Evidence rates how directly each company's own description names cybersecurity marketing agencies: 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	PT Itsec Asia TBKPartial evidence	Melbourne, Australia	201-500	387
	“ITSEC Asia is a leading cybersecurity company in Indonesia, listed on the Indonesian Stock Exchange (“CYBR”), with over 400 employees across five countries.” Source: company website · checked Sep 3, 2026
2	WebrootIndirect evidence	Chatswood, Australia	501-1,000	199
	“Webroot, an OpenText company, was the first to harness the cloud and artificial intelligence to stop zero-day threats in real time.” Source: company website · checked Sep 3, 2026
3	Triskele LabsPartial evidence	Melbourne, Australia	51-200	123
	“Triskele Labs is one of Australia’s fastest growing cybersecurity companies.” Source: company website · checked Sep 3, 2026
4	InfotrustIndirect evidence	Sydney, Australia	201-500	122
	“Infotrust (ITS) is Australia’s leading cyber security and managed technology services provider listed on the ASX.” Source: company website · checked Sep 3, 2026
5	RED SiftIndirect evidence	Surry Hills, Australia	51-200	109
	“Red Sift enables organizations to anticipate, respond to, and recover from cyber attacks while continuing to operate effectively.” Source: company website · checked Sep 3, 2026
6	SecutecPartial evidence	Sydney, Australia	51-200	102
	“Cybersecurity company Secutec was founded in 2005 and is considered an authority in the field of cybersecurity, threat intelligence, and incident response services tailored to…” Source: company website · checked Sep 3, 2026
7	SekuroIndirect evidence	Australia	51-200	100
	“Sekuro is a cyber security and digital resiliency solutions provider that helps CIOs and CISOs take a strategic approach to cyber security risk mitigation and building business…” Source: company website · checked Sep 3, 2026
8	Ever NimbleIndirect evidence	Fortitude Valley, Australia	51-200	98
	“We are your IT & Cyber Security partners.” Source: company website · checked Sep 3, 2026
9	Kaine Mathrick TechIndirect evidence	Sydney, Australia	51-200	91
	“Australia’s cyber-first Managed Service Provider and true technology partner.” Source: company website · checked Sep 3, 2026
10	Northbridge SystemsPartial evidence	St Leonards, Australia	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 3, 2026
11	Entersoft SecurityPartial evidence	Brisbane, Australia	51-200	63
	“Entersoft Security is an AI-enabled cybersecurity services firm helping modern enterprises build, ship, and operate secure digital products at scale.” Source: company website · checked Sep 3, 2026
12	RED PiranhaPartial evidence	Melbourne, Australia	51-200	58
	“Australia’s leading developer and manufacturer of advanced cybersecurity technology, Red Piranha delivers next-generation cyber defence solutions designed to protect modern…” Source: company website · checked Sep 3, 2026
13	Ipsec PTY LTDIndirect evidence	Cremorne, Australia	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 3, 2026
14	DeploypartnersIndirect evidence	North Sydney, Australia	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 3, 2026
15	Wipro SheldeIndirect evidence	Melbourne, Australia	51-200	50
	“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 3, 2026
16	Dimiya TechPartial evidence	Melbourne, Australia	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 3, 2026
17	Emerging ITIndirect evidence	Mulgrave, Australia	51-200	45
	“Clarity in a complex world.” Source: company website · checked Sep 3, 2026
18	Slipstream CyberIndirect evidence	St Leonards, Australia	11-50	42
	“Slipstream Cyber is a business of Interactive - Australia's leading technology solutions provider.” Source: company website · checked Sep 3, 2026
19	Seccom GlobalIndirect evidence	Sydney, Australia	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 3, 2026
20	IonizeIndirect evidence	Canberra, Australia	51-200	34
	“When it comes to security there's no shortage of companies ready to tell you about your vulnerabilities.” Source: company website · checked Sep 3, 2026
21	OP InnovatePartial evidence	Canberra, Australia	11-50	34
	“Established in 2014 to defend global enterprises from the increasing challenges of organizational cybersecurity.” Source: company website · checked Sep 3, 2026
22	NUEVAPartial evidence	Sydney, Australia	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 3, 2026
23	CybernaraPartial evidence	Adelaide, Australia	11-50	29
	“We are more than just a cybersecurity company; we are your partners in securing your digital future.” Source: company website · checked Sep 3, 2026
24	GCITIndirect evidence	Burleigh Heads, Australia	11-50	19
	“Based on the Gold Coast, GCIT provides IT security and managed services across Australia.” Source: company website · checked Sep 3, 2026
25	NCC Group ApacIndirect evidence	Sydney, Australia	1,001-5,000	18
	“NCC Group exists to make the world safer and more secure.” Source: company website · checked Sep 3, 2026

Showing 25 of 528 cybersecurity marketing agencies based in Australia

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Cybersecurity marketing agencies based in Australia at a glance

As of Sep 3, 2026

1-10Median size (employees)

SydneyLargest hub · 111 HQs

305Contacts with mobile numbers

Sep 3, 2026Data refreshed

Companies by employee count

1-10

346

11-50

142

51-200

201-500

501-1,000

1,001-5,000

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 cybersecurity marketing agencies, 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 “cybersecurity marketing agencies”. 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 cybersecurity marketing agencies, 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, 1,758 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 3, 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.

Cybersecurity marketing agencies by metro

Cybersecurity marketing agencies in Sydney111
Cybersecurity marketing agencies in Melbourne92
Cybersecurity marketing agencies in Brisbane45
Cybersecurity marketing agencies in Perth35
Cybersecurity marketing agencies in Canberra25

Frequently asked

How many cybersecurity marketing agencies are there based in Australia?

RevenueBase identified 528 cybersecurity marketing agencies 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?

PT Itsec Asia TBK, headquartered in Melbourne, tops this list with the largest team on record.

Which city has the most cybersecurity marketing agencies?

Sydney leads with 111 headquartered companies, followed by Melbourne (92) and Brisbane (45).

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 1,758 verified decision-maker contacts tracked across these 528 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 3, 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 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.