Company lists · Data refreshed September 2026

Top 25 Enterprise security architecture services based in Australia

RevenueBase identified 187 enterprise security architecture services headquartered in Australia as of September 2026 and tracks 842 professional contacts across them, including 356 with verified work emails. Melbourne is the largest hub.

This list covers enterprise security architecture services 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
187Companies
842Contacts tracked
356Verified emails
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The 25 largest enterprise security architecture services based in Australia

Ranked by team size
Top 25 of 187 enterprise security architecture services 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 enterprise security architecture services: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceMelbourne, AustraliaHQ checked Sep 28, 2026501-1,00061 contacts →

Indirect evidence

“Welcome to Ampion.”

Source: RevenueBase Database · checked Sep 28, 2026
2Partial evidenceAdelaide, AustraliaHQ checked Sep 28, 202651-20042 contacts →

Partial evidence

“Vectra, an Ensign company, is Australia’s trusted partner for security consulting, risk management, compliance, and managed services.”

Source: RevenueBase Database · checked Sep 28, 2026
3Partial evidenceMelbourne, AustraliaHQ checked Sep 28, 202651-20037 contacts →

Partial evidence

“SECURITY AND TECHNOLOGY EXPERTS ENGINEERING FOR A BETTER WORLD.”

Source: RevenueBase Database · checked Sep 28, 2026
4Indirect evidenceBrisbane City, AustraliaHQ checked Sep 28, 202611-5035 contacts →

Indirect evidence

“C5 Technology is a Brisbane-based IT consultancy company and systems integrator.”

Source: RevenueBase Database · checked Sep 28, 2026
5Indirect evidenceCremorne, AustraliaHQ checked Sep 28, 202651-20035 contacts →

Indirect evidence

“Good people solving important problems.”

Source: RevenueBase Database · checked Sep 28, 2026
6Partial evidenceCanberra, AustraliaHQ checked Sep 28, 20261-1020 contacts →

Partial evidence

“Cyconsol is an Australian based professional service provider specialising in the delivery of cyber security and IT related business consulting and training services.”

Source: RevenueBase Database · checked Sep 28, 2026
7Strong evidenceRedfern, AustraliaHQ checked Sep 28, 202611-5020 contacts →

Strong evidence

“Respiro – Network, Security & Workplace Architecture Experts Respiro designs, implements and supports secure network, cybersecurity and workplace technology architectures for…”

Source: RevenueBase Database · checked Sep 28, 2026
8Partial evidenceMelbourne, AustraliaHQ checked Sep 28, 202611-5018 contacts →

Partial evidence

“CyberSecOn is an Information security company with a presence in Australia, USA and India.”

Source: RevenueBase Database · checked Sep 28, 2026
9Partial evidenceSydney Cbd, AustraliaHQ checked Sep 28, 202611-5017 contacts →

Partial evidence

“Security Centric is a boutique specialist information security consulting and services organisation.”

Source: RevenueBase Database · checked Sep 28, 2026
10Indirect evidenceMelbourne, AustraliaHQ checked Sep 28, 202651-20015 contacts →

Indirect evidence

“Morfit Group Consulting is a pure IT Consulting and Professional Services organisation.”

Source: RevenueBase Database · checked Sep 28, 2026
11Partial evidenceSydney, AustraliaHQ checked Sep 28, 20261-1014 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
12Indirect evidenceCremorne, AustraliaHQ checked Sep 28, 202611-5014 contacts →

Indirect evidence

“Facing the Complexities of Cybersecurity?”

Source: RevenueBase Database · checked Sep 28, 2026
13Partial evidenceSydney, AustraliaHQ checked Sep 28, 202611-5014 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 28, 2026
14Partial evidenceCanberra, AustraliaHQ checked Sep 28, 202611-5012 contacts →

Partial evidence

“Aegis9 is an Australian owned consultancy that specialises in providing tailored security solutions for both public and private sector clients, based on their specific needs.”

Source: RevenueBase Database · checked Sep 28, 2026
15Partial evidenceMelbourne, AustraliaHQ checked Sep 28, 202611-5011 contacts →

Partial evidence

“Information security and technology risk management consulting - at CyberRisk we design, implement and operate information security programs to allow you to reduce and manage your…”

Source: RevenueBase Database · checked Sep 28, 2026
16Partial evidenceBondi Junction, AustraliaHQ checked Sep 28, 202611-5011 contacts →

Partial evidence

“At Proton Security, we provide our clients with specialised advice and solutions unique to their business needs and risk profile.”

Source: RevenueBase Database · checked Sep 28, 2026
17Partial evidenceSydney, AustraliaHQ checked Sep 28, 202611-5010 contacts →

Partial evidence

“Assertiv is a Security Services company based in Sydney, Australia with offices in Melbourne, Wellington (New Zealand), and Singapore.”

Source: RevenueBase Database · checked Sep 28, 2026
18Partial evidenceAustraliaHQ checked Sep 28, 202651-2009 contacts →

Partial evidence

“north is about helping clients tailor their cyber security to the challenges that are specific to their business.”

Source: RevenueBase Database · checked Sep 28, 2026
19Partial evidenceMelbourne, AustraliaHQ checked Sep 28, 202611-508 contacts →

Partial evidence

“Architecture as a Service, EA, Augmentation, Solution Architecture, Contracts, Training & Tools 50 years of combined Architecture and Talent experience across Australia.”

Source: RevenueBase Database · checked Sep 28, 2026
20Strong evidenceMelbourne, AustraliaHQ checked Sep 28, 20261-107 contacts →

Strong evidence

“We are an Australian IT consulting company specialising in Architecture, with a diverse team of expert architects dedicated to delivering top-tier Enterprise and Solution…”

Source: RevenueBase Database · checked Sep 28, 2026
21Indirect evidenceSouthbank, AustraliaHQ checked Sep 28, 202611-507 contacts →

Indirect evidence

“Crysp Consulting (Crysp) was founded by two professionals with collective experience of more than 35 years in the industry.”

Source: RevenueBase Database · checked Sep 28, 2026
22Partial evidenceCanberra, AustraliaHQ checked Sep 28, 20261-107 contacts →

Partial evidence

“STSC delivers Security, Technology, and Strategy Consulting services to commercial, corporate, and executive customers; a field in which we have been operating for almost fifteen…”

Source: RevenueBase Database · checked Sep 28, 2026
23Partial evidenceCanberra, AustraliaHQ checked Sep 28, 202651-2006 contacts →

Partial evidence

“The Pearson Corporation is a locally owned Canberra IT Consulting firm that has proven experience and a track record for delivering ICT and Cyber Security services to both the…”

Source: RevenueBase Database · checked Sep 28, 2026
24Partial evidenceSydney, AustraliaHQ checked Sep 28, 20261-106 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 28, 2026
25Partial evidenceMelbourne, AustraliaHQ checked Sep 28, 202611-505 contacts →

Partial evidence

“Secure computing and digital security transformation.”

Source: RevenueBase Database · checked Sep 28, 2026

Showing 25 of 187 enterprise security architecture services based in Australia

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Enterprise security architecture services based in Australia at a glance

As of Sep 28, 2026
42.3%Verified-email coverage
4.5Average contacts per company
1-10Median size (employees)
21.9%Largest-city concentration · Melbourne
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
137
11-50
35
51-200
13
501-1,000
1

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 187 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 enterprise security architecture services, 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 “enterprise security architecture services”. 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 enterprise security architecture services), 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 enterprise security architecture services, 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, 356 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.

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 enterprise security architecture services, 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 enterprise security architecture services are there based in Australia?

RevenueBase identified 187 enterprise security architecture services 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?

Ampion, headquartered in Melbourne, tops this list with the largest team on record.

Which city has the most enterprise security architecture services?

Melbourne leads with 41 headquartered companies, followed by Sydney (41) and Brisbane (17).

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 356 verified decision-maker contacts tracked across these 187 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.