Company lists · Data refreshed September 2026

Top 25 Secure software development companies based in Australia

Name: Secure software development companies based in Australia
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 6, 2026 669 companies tracked

RevenueBase identified 669 secure software development companies headquartered in Australia as of September 2026 and tracks 4,976 professional contacts across them, including 1,874 with verified work emails and 249 with mobile numbers. Sydney is the largest hub.

This list covers secure software development companies 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 6, 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 6, 2026 86% judged on-target in blind review

669Companies

4,976Contacts tracked

1,874Verified emails

249Mobile numbers

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The 25 largest secure software development companies based in Australia

Ranked by team size

Top 25 of 669 secure software development companies based in Australia, ranked by team size, largest first. Data refreshed Sep 6, 2026. RevenueBase Smart Search rates how each company's information relates to secure software development companies: 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	Centorrino Technologies	Partial evidence	Coburg, AustraliaHQ checked Sep 6, 2026	201-500	352 contacts →
	Partial evidence “We are an Australian-owned, full-service ICT Solutions and Cyber Security provider with a locally based team of over 450 passionate Aussies.” Source: RevenueBase Database · checked Sep 6, 2026
2	Crystal Delta	Partial evidence	Melbourne, AustraliaHQ checked Sep 6, 2026	51-200	155 contacts →
	Partial evidence “Explore new frontiers, uncover value from core business and build secure, scalable digital foundations through our transformative Technology Solutions.” Source: RevenueBase Database · checked Sep 6, 2026
3	Triskele Labs	Indirect evidence	Melbourne, AustraliaHQ checked Sep 6, 2026	51-200	123 contacts →
	Indirect evidence “Triskele Labs is one of Australia’s fastest growing cybersecurity companies.” Source: RevenueBase Database · checked Sep 6, 2026
4	Ever Nimble	Partial evidence	West Perth, AustraliaHQ checked Sep 6, 2026	51-200	102 contacts →
	Partial evidence “We are your IT & Cyber Security partners.” Source: RevenueBase Database · checked Sep 6, 2026
5	Kaine Mathrick Tech	Indirect evidence	Port Melbourne, AustraliaHQ checked Sep 6, 2026	51-200	93 contacts →
	Indirect evidence “Australia’s cyber-first Managed Service Provider and true technology partner.” Source: RevenueBase Database · checked Sep 6, 2026
6	Swivel Tech	Partial evidence	Cremorne, AustraliaHQ checked Sep 6, 2026	51-200	69 contacts →
	Partial evidence “SwivelTech is all about pushing boundaries to bring you innovative, world-class software products and strategy consultation.” Source: RevenueBase Database · checked Sep 6, 2026
7	Intergy Consulting	Indirect evidence	North Sydney, AustraliaHQ checked Sep 6, 2026	51-200	63 contacts →
	Indirect evidence “Since 2004 Intergy Consulting has been helping clients realise their business vision through delivering innovative, high quality, customised IT solutions.” Source: RevenueBase Database · checked Sep 6, 2026
8	A23	Indirect evidence	Canberra, AustraliaHQ checked Sep 6, 2026	51-200	62 contacts →
	Indirect evidence “a23 is a straight-talking, Australian-owned IT consulting firm focused on what matters most to government and business.” Source: RevenueBase Database · checked Sep 6, 2026
9	Skillfield	Partial evidence	Melbourne, AustraliaHQ checked Sep 6, 2026	51-200	62 contacts →
	Partial evidence “Skillfield is a Melbourne-born Cyber Security, AI and big data solutions provider and professional services consultancy.” Source: RevenueBase Database · checked Sep 6, 2026
10	3columns	Partial evidence	502, AustraliaHQ checked Sep 6, 2026	51-200	61 contacts →
	Partial evidence “Discover 3Columns, your premier destination for cutting-edge cyber security solutions.” Source: RevenueBase Database · checked Sep 6, 2026
11	Ampion	Indirect evidence	Melbourne, AustraliaHQ checked Sep 6, 2026	501-1,000	61 contacts →
	Indirect evidence “Welcome to Ampion.” Source: RevenueBase Database · checked Sep 6, 2026
12	Deploypartners	Indirect evidence	North Sydney, AustraliaHQ checked Sep 6, 2026	51-200	51 contacts →
	Indirect evidence “DeployPartners offer unique values and benefits that enable our clients and partners to differentiate on customer service.” Source: RevenueBase Database · checked Sep 6, 2026
13	Dimiya Tech	Partial evidence	Melbourne, AustraliaHQ checked Sep 6, 2026	51-200	50 contacts →
	Partial evidence “DIMIYA Tech is a Melbourne, Australia based- global Cybersecurity and IT services provider supporting organizations that require secure, scalable, and high-performance technology…” Source: RevenueBase Database · checked Sep 6, 2026
14	Seccom Global	Partial evidence	Sydney, AustraliaHQ checked Sep 6, 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 6, 2026
15	Bluerydge	Partial evidence	Fyshwick, AustraliaHQ checked Sep 6, 2026	51-200	41 contacts →
	Partial evidence “Bluerydge delivers mission-secure capability, specialising in Cybersecurity, Technology, Artificial Intelligence (AI), and Robotics.” Source: RevenueBase Database · checked Sep 6, 2026
16	Devops1	Partial evidence	Sydney, AustraliaHQ checked Sep 6, 2026	51-200	40 contacts →
	Partial evidence “At DevOps1, our technologists are dedicated to using their collective experience and knowledge of modern engineering best practices to deliver effective, secure, and…” Source: RevenueBase Database · checked Sep 6, 2026
17	Softel Systems	Partial evidence	Melbourne, AustraliaHQ checked Sep 6, 2026	11-50	37 contacts →
	Partial evidence “With over 20 years in the security market for IT and Telecommunications networks, Softel has naturally migrated these skills into the Cybersecurity challenges of today.” Source: RevenueBase Database · checked Sep 6, 2026
18	9t5 PTY LTD	Strong evidence	Sydney, AustraliaHQ checked Sep 6, 2026	11-50	37 contacts →
	Strong evidence “9T5 began as an IT Consulting and Software Development company in 2017.” Source: RevenueBase Database · checked Sep 6, 2026
19	Ionize	Partial evidence	Canberra, AustraliaHQ checked Sep 6, 2026	51-200	35 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 6, 2026
20	Astralas	Indirect evidence	Cremorne, AustraliaHQ checked Sep 6, 2026	51-200	35 contacts →
	Indirect evidence “Good people solving important problems.” Source: RevenueBase Database · checked Sep 6, 2026
21	Cyberxcel	Indirect evidence	Brisbane, AustraliaHQ checked Sep 6, 2026	n/a	33 contacts →
	Indirect evidence “Founded by Sohail Ershadi, a distinguished cybersecurity expert with over a decade of experience in the IT industry, CyberXcel has rapidly emerged as a leader in cybersecurity…” Source: RevenueBase Database · checked Sep 6, 2026
22	Division 5	Partial evidence	Brisbane, AustraliaHQ checked Sep 6, 2026	11-50	32 contacts →
	Partial evidence “Division 5 is focused on building long-term relationships with our clients as their trusted cyber security advisor.” Source: RevenueBase Database · checked Sep 6, 2026
23	Excite Cyber	Indirect evidence	North Sydney, AustraliaHQ checked Sep 6, 2026	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 6, 2026
24	NUEVA	Indirect evidence	Sydney, AustraliaHQ checked Sep 6, 2026	51-200	30 contacts →
	Indirect evidence “At Nueva, we aim to create a safer digital environment by providing innovative and customised cybersecurity solutions for our clients.” Source: RevenueBase Database · checked Sep 6, 2026
25	Huon IT	Indirect evidence	North Ryde, AustraliaHQ checked Sep 6, 2026	51-200	29 contacts →
	Indirect evidence “As an Australian-based IT consultancy and proud member of the Kyocera Group, Huon IT has been delivering exceptional IT solutions nationwide for over 35 years.” Source: RevenueBase Database · checked Sep 6, 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: secure software development companies. 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 secure software development companies.
Partial evidence: Its own public description names part of secure software development companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name secure software development companies. 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 669 secure software development companies based in Australia

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Secure software development companies based in Australia at a glance

As of Sep 6, 2026

37.7%Verified-email coverage

5.0%Mobile-number coverage

7.4Average contacts per company

1-10Median size (employees)

19.9%Largest-city concentration · Sydney

Sep 6, 2026Page data refreshed

Companies by employee count

1-10

431

11-50

179

51-200

201-500

501-1,000

1,001-5,000

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

1,7360–30

13331–60

261–90

090–180

3180+

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 secure software development companies, 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 “secure software development companies”. 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 secure software development companies), 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 secure software development companies, 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, 1,874 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 6, 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.

Secure software development companies 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 secure software development companies, 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 secure software development companies are there based in Australia?

RevenueBase identified 669 secure software development companies 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?

Centorrino Technologies, headquartered in Coburg, tops this list with the largest team on record.

Which city has the most secure software development companies?

Sydney leads with 133 headquartered companies, followed by Melbourne (131) and Brisbane (49).

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 1,874 verified decision-maker contacts tracked across these 669 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 6, 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.