Company lists · Data refreshed September 2026

Top 25 Cybersecurity incident response based in Australia

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

Compiled by the RevenueBase Data Team Data refreshed Sep 1, 2026 219 companies tracked

RevenueBase identified 219 cybersecurity incident response headquartered in Australia as of September 2026 and tracks 2,195 professional contacts across them, including 887 with verified work emails and 119 with mobile numbers. Sydney is the largest hub.

This list covers cybersecurity incident response 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

219Companies

2,195Contacts tracked

887Verified emails

119Mobile numbers

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The 25 largest cybersecurity incident response based in Australia

Ranked by team size

Top 25 of 219 cybersecurity incident response 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 cybersecurity incident response: 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	Triskele Labs	Partial evidence	Melbourne, Australia	51-200	123 contacts →
	Partial evidence “Triskele Labs is one of Australia’s fastest growing cybersecurity companies.” Source: RevenueBase Database · checked Sep 1, 2026
2	Secutec	Strong evidence	Sydney, Australia	51-200	102 contacts →
	Strong evidence “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: RevenueBase Database · checked Sep 1, 2026
3	Sekuro	Indirect evidence	Australia	51-200	100 contacts →
	Indirect evidence “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: RevenueBase Database · checked Sep 1, 2026
4	Northbridge Systems	Partial evidence	St Leonards, Australia	51-200	70 contacts →
	Partial evidence “Northbridge is an Australian-owned cybersecurity services provider with more than 25 years’ experience delivering engineered, integrated and fully managed security services to…” Source: RevenueBase Database · checked Sep 1, 2026
5	E2e-Assure	Partial evidence	Canberra, Australia	51-200	60 contacts →
	Partial evidence “e2e-assure is the UK's leading specialist in Managed Threat Detection and Response through our 24/7/365 UK owned and operated Security Operations Centre (SOC).” Source: RevenueBase Database · checked Sep 1, 2026
6	Ipsec PTY LTD	Indirect evidence	Cremorne, Australia	11-50	57 contacts →
	Indirect 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
7	Emerging IT	Indirect evidence	Mulgrave, Australia	51-200	45 contacts →
	Indirect evidence “Clarity in a complex world.” Source: RevenueBase Database · checked Sep 1, 2026
8	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
9	Vectra	Indirect evidence	Melbourne, Australia	51-200	42 contacts →
	Indirect 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
10	Seccom Global	Indirect evidence	Sydney, Australia	11-50	41 contacts →
	Indirect 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 1, 2026
11	Division 5	Indirect evidence	Brisbane, Australia	11-50	36 contacts →
	Indirect evidence “Division 5 is focused on building long-term relationships with our clients as their trusted cyber security advisor.” Source: RevenueBase Database · checked Sep 1, 2026
12	Ionize	Indirect evidence	Canberra, Australia	51-200	34 contacts →
	Indirect 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
13	OP Innovate	Partial evidence	Canberra, Australia	11-50	34 contacts →
	Partial evidence “Established in 2014 to defend global enterprises from the increasing challenges of organizational cybersecurity.” Source: RevenueBase Database · checked Sep 1, 2026
14	Terraeagle	Indirect evidence	Strathfield, Australia	11-50	34 contacts →
	Indirect evidence “Terraeagle is a cyber security services company providing tailor-made solutions.” Source: RevenueBase Database · checked Sep 1, 2026
15	NSB Cyber	Indirect evidence	Brisbane, Australia	11-50	30 contacts →
	Indirect evidence “NSB Cyber is an Australian-founded, privately owned cyber security company based in Sydney.” Source: RevenueBase Database · checked Sep 1, 2026
16	Cybernara	Partial evidence	Adelaide, Australia	11-50	29 contacts →
	Partial evidence “We are more than just a cybersecurity company; we are your partners in securing your digital future.” Source: RevenueBase Database · checked Sep 1, 2026
17	Infinitesol	Partial evidence	Melbourne, Australia	11-50	27 contacts →
	Partial evidence “Infinitesol helps organizations make the right decisions in the first critical minutes of a cyber incident.” Source: RevenueBase Database · checked Sep 1, 2026
18	GCIT	Indirect evidence	Burleigh Heads, Australia	11-50	19 contacts →
	Indirect evidence “Based on the Gold Coast, GCIT provides IT security and managed services across Australia.” Source: RevenueBase Database · checked Sep 1, 2026
19	NCC Group Apac	Indirect evidence	Sydney, Australia	1,001-5,000	18 contacts →
	Indirect evidence “NCC Group exists to make the world safer and more secure.” Source: RevenueBase Database · checked Sep 1, 2026
20	Retrospect Labs	Indirect evidence	Melbourne, Australia	11-50	17 contacts →
	Indirect evidence “Retrospect Labs is a specialist information security company focused on helping companies improve their security posture and resilience through realistic exercises.” Source: RevenueBase Database · checked Sep 1, 2026
21	Sinevis	Partial evidence	Australia	11-50	17 contacts →
	Partial evidence “We are a leading cybersecurity services organization with more than a decade of proven expertise in consulting, solution implementation and managed services.” Source: RevenueBase Database · checked Sep 1, 2026
22	Cube Cyber	Strong evidence	Perth, Australia	11-50	16 contacts →
	Strong evidence “Cube Cyber is an Australian cybersecurity company specialising in Managed Detection & Response (MDR), Security Operations, and Cybersecurity & AI Governance advisory.” Source: RevenueBase Database · checked Sep 1, 2026
23	Secure ISS	Indirect evidence	Southport, Australia	11-50	16 contacts →
	Indirect evidence “Aussie-built, AI-powered security operations with local expertise, advanced threat detection, and round-the-clock protection.” Source: RevenueBase Database · checked Sep 1, 2026
24	Sentaris	Strong evidence	Sydney, Australia	11-50	14 contacts →
	Strong 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 1, 2026
25	Spartans Security	Partial evidence	Cremorne, Australia	11-50	14 contacts →
	Partial evidence “Facing the Complexities of Cybersecurity?” 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: cybersecurity incident response. 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 cybersecurity incident response.
Partial evidence: Its own public description names part of cybersecurity incident response, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name cybersecurity incident response. 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 219 cybersecurity incident response based in Australia

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Cybersecurity incident response based in Australia at a glance

As of Sep 1, 2026

40.4%Verified-email coverage

5.4%Mobile-number coverage

10.0Average contacts per company

1-10Median size (employees)

25.1%Largest-city concentration · Sydney

Sep 1, 2026Page data refreshed

Companies by employee count

1-10

121

11-50

51-200

201-500

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 incident response, 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 “cybersecurity incident response”. 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 cybersecurity incident response), 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 cybersecurity incident response, 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, 887 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.

Cybersecurity incident response by metro

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 cybersecurity incident response, 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 cybersecurity incident response are there based in Australia?

RevenueBase identified 219 cybersecurity incident response 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 cybersecurity incident response?

Sydney leads with 55 headquartered companies, followed by Melbourne (45) and Brisbane (16).

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 887 verified decision-maker contacts tracked across these 219 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.