Company lists · Data refreshed September 2026

Top 25 IT security pr firms based in Australia

Name: IT security pr firms based in Australia
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 100 companies tracked

RevenueBase identified 100 IT security pr firms headquartered in Australia as of September 2026 and tracks 450 professional contacts across them, including 204 with verified work emails. Melbourne is the largest hub.

This list covers IT security pr firms 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 28, 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 28, 2026 86% judged on-target in blind review

100Companies

450Contacts tracked

204Verified emails

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The 25 largest IT security pr firms based in Australia

Ranked by team size

Top 25 of 100 IT security pr firms based in Australia, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to IT security pr 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	Seccom Global	Partial evidence	Sydney, AustraliaHQ checked Sep 28, 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 28, 2026
2	Fortian	Partial evidence	Melbourne, AustraliaHQ checked Sep 28, 2026	11-50	25 contacts →
	Partial evidence “Fortian is a leading Australian company specialising in cyber security, privacy, and technology risk management.” Source: RevenueBase Database · checked Sep 28, 2026
3	Cybersecon	Partial evidence	Melbourne, AustraliaHQ checked Sep 28, 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 28, 2026
4	Security Centric	Partial evidence	Sydney Cbd, AustraliaHQ checked Sep 28, 2026	11-50	17 contacts →
	Partial evidence “Security Centric is a boutique specialist information security consulting and services organisation.” Source: RevenueBase Database · checked Sep 28, 2026
5	Zynet PTY LTD	Strong evidence	Tullamarine, AustraliaHQ checked Sep 28, 2026	11-50	17 contacts →
	Strong 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 28, 2026
6	Mercury Information Security Services	Partial evidence	Sydney, AustraliaHQ checked Sep 28, 2026	1-10	14 contacts →
	Partial evidence “Our mission is to provide organisations with a comprehensive, world class range of customised information security services and advice which will enable them to secure and protect…” Source: RevenueBase Database · checked Sep 28, 2026
7	Sentaris	Partial evidence	Melbourne, AustraliaHQ checked Sep 28, 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 28, 2026
8	Good Talent Media	Indirect evidence	Melbourne, AustraliaHQ checked Sep 28, 2026	1-10	13 contacts →
	Indirect evidence “Our team of ex-journos and comms gurus have helped 300+ businesses and NFPs build & protect their brands, Our Services Include: Public Relations Crisis Media Management Media…” Source: RevenueBase Database · checked Sep 28, 2026
9	Wilkinson Group	Partial evidence	Sydney, AustraliaHQ checked Sep 28, 2026	1-10	12 contacts →
	Partial evidence “Wilkinson Group is a Sydney communications agency, specialising in crisis PR.” Source: RevenueBase Database · checked Sep 28, 2026
10	Adoni Media Public Relations	Partial evidence	Brisbane, AustraliaHQ checked Sep 28, 2026	1-10	11 contacts →
	Partial evidence “Trusted and award-winning PR agency founded by award-winning Australian journalist, Leisa Goddard.” Source: RevenueBase Database · checked Sep 28, 2026
11	Cyberhub Group	Partial evidence	Sydney, AustraliaHQ checked Sep 28, 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 28, 2026
12	kbi.digital	Partial evidence	Sydney, AustraliaHQ checked Sep 28, 2026	11-50	8 contacts →
	Partial evidence “KBI is a marketing and media company, servicing the security and emerging tech industry.” Source: RevenueBase Database · checked Sep 28, 2026
13	Commshake Media Engagement	Indirect evidence	Murray Bridge, AustraliaHQ checked Sep 28, 2026	1-10	7 contacts →
	Indirect evidence “Commshake Media + Engagement is a ‘creative solutions’ public relations firm based in the Murraylands, South Australia.” Source: RevenueBase Database · checked Sep 28, 2026
14	Timmins RAY Public Relations	Indirect evidence	Battery Point, AustraliaHQ checked Sep 28, 2026	1-10	7 contacts →
	Indirect evidence “Over three decades working at the top end of the public relations profession in Australia and overseas, Tasmania’s largest family-owned public relations agency, Timmins Ray, has…” Source: RevenueBase Database · checked Sep 28, 2026
15	Mcco Group	Partial evidence	Adelaide, AustraliaHQ checked Sep 28, 2026	1-10	6 contacts →
	Partial evidence “Creating PR which commands respect in the boardroom McCo Group is a full-service public relations and communications agency committed to excellence in all we do.” Source: RevenueBase Database · checked Sep 28, 2026
16	Proveho Networks	Partial evidence	Melbourne, AustraliaHQ checked Sep 28, 2026	11-50	5 contacts →
	Partial evidence “Secure computing and digital security transformation.” Source: RevenueBase Database · checked Sep 28, 2026
17	Trusted Impact PTY LTD	Partial evidence	Melbourne, AustraliaHQ checked Sep 28, 2026	11-50	5 contacts →
	Partial evidence “With a singular focus on "Information Security", Trusted Impact prides itself on delivering demonstrable business outcomes by applying an independent perspective and by leveraging…” Source: RevenueBase Database · checked Sep 28, 2026
18	Nortec IT Business Solutions	Strong evidence	Castle Hill, AustraliaHQ checked Sep 28, 2026	11-50	5 contacts →
	Strong evidence “Nortec IT provide integrated managed cyber security solutions tailored to your business requirements.” Source: RevenueBase Database · checked Sep 28, 2026
19	Reckon Security	Strong evidence	Adelaide, AustraliaHQ checked Sep 28, 2026	1-10	5 contacts →
	Strong evidence “Reckon Security provides expertise in IT Security services to Australian government and corporate clients.” Source: RevenueBase Database · checked Sep 28, 2026
20	Cole Lawson Communications	Indirect evidence	Brisbane, AustraliaHQ checked Sep 28, 2026	1-10	5 contacts →
	Indirect evidence “Cole Lawson is a public relations consultancy specialising in communication strategy, media relations, and reputation and crisis management.” Source: RevenueBase Database · checked Sep 28, 2026
21	Fort1 PTY LTD	Indirect evidence	Sydney, AustraliaHQ checked Sep 28, 2026	1-10	5 contacts →
	Indirect evidence “Fort1: Comprehensive Cybersecurity Services based in Australia.” Source: RevenueBase Database · checked Sep 28, 2026
22	Intact Security PTY LTD	Partial evidence	Naremburn, AustraliaHQ checked Sep 28, 2026	1-10	5 contacts →
	Partial evidence “Intact Security provides services around; security and vulnerability testing, security breaches and investigations, security awareness and compliance.” Source: RevenueBase Database · checked Sep 28, 2026
23	PR Deadlines	Partial evidence	Sydney, AustraliaHQ checked Sep 28, 2026	1-10	4 contacts →
	Partial evidence “Established on the pillars of executive journalism, PR Deadlines has flourished over the past two decades into a premier PR agency, distinguishing itself in the realms of…” Source: RevenueBase Database · checked Sep 28, 2026
24	Cyber Citadel	Partial evidence	Barangaroo, AustraliaHQ checked Sep 28, 2026	1-10	4 contacts →
	Partial evidence “We are cyber security specialists.” Source: RevenueBase Database · checked Sep 28, 2026
25	Jigsaw Communications	Partial evidence	Brisbane, AustraliaHQ checked Sep 28, 2026	1-10	4 contacts →
	Partial evidence “Dynamic PR - Effective Communications - Creative Copywriting Jigsaw Communications helps individuals, SMEs, corporate organisations, start-ups, non-profits, sporting organisations…” Source: RevenueBase Database · checked Sep 28, 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: IT security pr 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 IT security pr firms.
Partial evidence: Its own public description names part of IT security pr firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name IT security pr 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 100 IT security pr firms based in Australia

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IT security pr firms based in Australia at a glance

As of Sep 28, 2026

45.3%Verified-email coverage

4.5Average contacts per company

1-10Median size (employees)

28.0%Largest-city concentration · Melbourne

Sep 28, 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 100 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 IT security pr 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 Australia whose own description of what they do matches “IT security pr 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 IT security pr 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 IT security pr firms, 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, 204 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 28, 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.

IT security pr firms by metro

IT security pr firms in Melbourne28

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 IT security pr 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 IT security pr firms are there based in Australia?

RevenueBase identified 100 IT security pr firms 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?

Seccom Global, headquartered in Sydney, tops this list with the largest team on record.

Which city has the most IT security pr firms?

Melbourne leads with 28 headquartered companies, followed by Sydney (18) 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 204 verified decision-maker contacts tracked across these 100 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 28, 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.