Company lists · Data refreshed September 2026

Top 25 Data security consulting firms based in Australia

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

Compiled by the RevenueBase Data Team Data refreshed Sep 1, 2026 616 companies tracked

RevenueBase identified 616 data security consulting firms headquartered in Australia as of September 2026 and tracks 3,872 professional contacts across them, including 1,556 with verified work emails and 203 with mobile numbers. Sydney is the largest hub.

This list covers data security consulting 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 1, 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 RevenueBase Smart Search rating on every row Refreshed Sep 1, 2026 86% judged on-target in blind review

616Companies

3,872Contacts tracked

1,556Verified emails

203Mobile numbers

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The 25 largest data security consulting firms based in Australia

Ranked by team size

Top 25 of 616 data security consulting firms based in Australia, ranked by team size, largest first. Data refreshed Sep 1, 2026. RevenueBase Smart Search rates how each company's information relates to data security consulting 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	PT Itsec Asia TBK	Indirect evidence	Melbourne, Australia	201-500	387 contacts →
	Indirect evidence “ITSEC Asia is a leading cybersecurity company in Indonesia, listed on the Indonesian Stock Exchange (“CYBR”), with over 400 employees across five countries.” Source: RevenueBase Database · checked Sep 1, 2026
2	Triskele Labs	Indirect evidence	Melbourne, Australia	51-200	123 contacts →
	Indirect evidence “Triskele Labs is one of Australia’s fastest growing cybersecurity companies.” Source: RevenueBase Database · checked Sep 1, 2026
3	Optic Security Group	Partial evidence	Broome, Australia	201-500	122 contacts →
	Partial evidence “Optic Security Group is a leading provider of converged security risk management solutions serving the needs of corporate, enterprise, and government clients across Australia and…” Source: RevenueBase Database · checked Sep 1, 2026
4	Kaine Mathrick Tech	Indirect evidence	Sydney, Australia	51-200	91 contacts →
	Indirect evidence “Australia’s cyber-first Managed Service Provider and true technology partner.” Source: RevenueBase Database · checked Sep 1, 2026
5	Business Aspect	Indirect evidence	Perth, Australia	51-200	74 contacts →
	Indirect evidence “At Business Aspect, our promise to our clients is to always look at things from a ‘fresh perspective’ and to ensure our engagement with you is based on a clear understanding of…” Source: RevenueBase Database · checked Sep 1, 2026
6	Ampion	Indirect evidence	Melbourne, Australia	501-1,000	64 contacts →
	Indirect evidence “Welcome to Ampion.” Source: RevenueBase Database · checked Sep 1, 2026
7	Skillfield	Strong evidence	Melbourne, Australia	51-200	61 contacts →
	Strong evidence “Skillfield is a Melbourne-born Cyber Security, AI and big data solutions provider and professional services consultancy.” Source: RevenueBase Database · checked Sep 1, 2026
8	Ipsec PTY LTD	Partial evidence	Cremorne, Australia	11-50	57 contacts →
	Partial evidence “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: RevenueBase Database · checked Sep 1, 2026
9	Slipstream Cyber	Indirect evidence	St Leonards, Australia	11-50	42 contacts →
	Indirect evidence “Slipstream Cyber is a business of Interactive - Australia's leading technology solutions provider.” Source: RevenueBase Database · checked Sep 1, 2026
10	Vectra	Strong evidence	Melbourne, Australia	51-200	42 contacts →
	Strong evidence “Vectra, an Ensign company, is Australia’s trusted partner for security consulting, risk management, compliance, and managed services.” Source: RevenueBase Database · checked Sep 1, 2026
11	IPP Consulting PTY LTD	Partial evidence	Canberra, Australia	51-200	37 contacts →
	Partial evidence “SECURITY AND TECHNOLOGY EXPERTS ENGINEERING FOR A BETTER WORLD.” Source: RevenueBase Database · checked Sep 1, 2026
12	Astralas	Indirect evidence	Cremorne, Australia	51-200	35 contacts →
	Indirect evidence “Good people solving important problems.” Source: RevenueBase Database · checked Sep 1, 2026
13	Ionize	Partial evidence	Canberra, Australia	51-200	34 contacts →
	Partial evidence “When it comes to security there's no shortage of companies ready to tell you about your vulnerabilities.” Source: RevenueBase Database · checked Sep 1, 2026
14	Excite Cyber	Indirect evidence	North Sydney, Australia	11-50	31 contacts →
	Indirect evidence “At Excite Cyber, we envision a world where businesses can fearlessly embrace technology and leverage the best cyber expertise for robust, outcome-focused solutions.” Source: RevenueBase Database · checked Sep 1, 2026
15	CSO Group	Partial evidence	Sydney, Australia	11-50	29 contacts →
	Partial evidence “CSO Group provides ICT security services and solutions to protect Australian businesses from advanced cyber threats.” Source: RevenueBase Database · checked Sep 1, 2026
16	Jigsaw Notions	Partial evidence	Canberra, Australia	51-200	28 contacts →
	Partial evidence “Jigsaw Notions is a professional services consultancy specialising in Cyber Security, Engineering, Procurement, and Management solutions, supporting Australian Industry and…” Source: RevenueBase Database · checked Sep 1, 2026
17	Novofinity	Partial evidence	Sydney, Australia	11-50	27 contacts →
	Partial evidence “In a rapidly evolving world, NovoFinity stands at the forefront of data consultancy, driving disruptive innovation through data-driven strategies.” Source: RevenueBase Database · checked Sep 1, 2026
18	CTO Group Australia	Indirect evidence	Barton, Australia	51-200	24 contacts →
	Indirect evidence “CTO Group provides its clients with industry experts who bring with them vast experience in their area of expertise, we deliver value in our engagements to meet your business…” Source: RevenueBase Database · checked Sep 1, 2026
19	Anitech PTY LTD	Strong evidence	Perth, Australia	11-50	24 contacts →
	Strong evidence “Are you looking for impactful experienced consulting services in Cyber Security, Business Management Systems, Technology Solutions and Occupational Hygiene Services?” Source: RevenueBase Database · checked Sep 1, 2026
20	Rightsec	Partial evidence	Brisbane, Australia	11-50	19 contacts →
	Partial evidence “RightSec offers a wide range of cyber security services to meet all business needs, from our Governance, Risk and Compliance (GRC) practice to our more technical services.” Source: RevenueBase Database · checked Sep 1, 2026
21	Cybersecon	Partial evidence	Melbourne, Australia	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 1, 2026
22	Security Centric	Strong evidence	Sydney Cbd, Australia	11-50	16 contacts →
	Strong evidence “Security Centric is a boutique specialist information security consulting and services organisation.” Source: RevenueBase Database · checked Sep 1, 2026
23	Cocoon Data	Strong evidence	Sydney, Australia	11-50	16 contacts →
	Strong evidence “Cocoon Data stands as a beacon of security in the vast digital landscape.” Source: RevenueBase Database · checked Sep 1, 2026
24	VIDEN	Partial evidence	Braddon, Australia	51-200	16 contacts →
	Partial evidence “Viden is a leading Australian cyber security consultancy and cyber physical systems and digital forensics testing laboratory.” Source: RevenueBase Database · checked Sep 1, 2026
25	Myrtec	Indirect evidence	Maitland, Australia	11-50	16 contacts →
	Indirect evidence “Myrtec helps businesses move forward by guiding them through a clear, 3-step journey: Simplify: Let’s get back to basics.” Source: RevenueBase Database · checked Sep 1, 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: data security consulting 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 data security consulting firms.
Partial evidence: Its own public description names part of data security consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name data security consulting 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 616 data security consulting firms based in Australia

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Data security consulting firms based in Australia at a glance

As of Sep 1, 2026

40.2%Verified-email coverage

5.2%Mobile-number coverage

6.3Average contacts per company

1-10Median size (employees)

23.1%Largest-city concentration · Sydney

Sep 1, 2026Page data refreshed

Companies by employee count

1-10

429

11-50

147

51-200

201-500

501-1,000

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 data security consulting 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 “data security consulting 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 data security consulting 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 data security consulting 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, 1,556 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 1, 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.

Data security consulting firms by metro

Data security consulting firms in Sydney142
Data security consulting firms in Melbourne121
Data security consulting firms in Brisbane45
Data security consulting firms in Canberra37
Data security consulting firms in Perth32
Data security consulting firms in Adelaide26

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 data security consulting 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 data security consulting firms are there based in Australia?

RevenueBase identified 616 data security consulting 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?

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

Which city has the most data security consulting firms?

Sydney leads with 142 headquartered companies, followed by Melbourne (121) 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 1,556 verified decision-maker contacts tracked across these 616 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 1, 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.