Company lists · Data refreshed August 2026

Top 25 Api security companies based in Sydney, Australia

Name: Api security companies based in Sydney, Australia
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Aug 31, 2026 54 companies tracked

RevenueBase identified 54 api security companies headquartered in Sydney, Australia as of August 2026 and tracks 385 professional contacts across them, including 160 with verified work emails and 13 with mobile numbers. Sydney is the largest hub.

This list covers api security companies headquartered in Sydney, 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 August 31, 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 Aug 31, 2026 86% judged on-target in blind review

54Companies

385Contacts tracked

160Verified emails

13Mobile numbers

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The 25 largest api security companies based in Sydney, Australia

Ranked by team size

Top 25 of 54 api security companies based in Sydney, Australia, ranked by team size, largest first. Data refreshed Aug 31, 2026. RevenueBase Smart Search rates how each company's information relates to api security 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	Seccom Global	Partial evidence	Sydney, Australia	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 Aug 31, 2026
2	Fortian	Partial evidence	Sydney, Australia	11-50	26 contacts →
	Partial evidence “Fortian is a leading Australian company specialising in cyber security, privacy, and technology risk management.” Source: RevenueBase Database · checked Aug 31, 2026
3	Gridware	Indirect evidence	Sydney, Australia	11-50	25 contacts →
	Indirect evidence “For most organisations in Australia, a data breach can be more than a PR disaster, it could be the final chapter.” Source: RevenueBase Database · checked Aug 31, 2026
4	Beyond Data	Partial evidence	Sydney, Australia	11-50	25 contacts →
	Partial evidence “Beyond Data is a trusted value-added partner and managed security service provider (MSSP) for global leaders in the intelligence, investigation, and cybersecurity domains.” Source: RevenueBase Database · checked Aug 31, 2026
5	Borderless CS	Indirect evidence	Sydney, Australia	11-50	25 contacts →
	Indirect evidence “About Us - Australia’s leading cybersecurity specialist, delivering comprehensive protection by Australian-based consultants only-no offshore teams- 100% cybersecurity-focused…” Source: RevenueBase Database · checked Aug 31, 2026
6	Silentgrid Security	Partial evidence	Sydney, Australia	11-50	22 contacts →
	Partial evidence “SilentGrid is an offensive security consultancy with a focus on adversary simulation and penetration testing.” Source: RevenueBase Database · checked Aug 31, 2026
7	Threat Intelligence	Indirect evidence	Sydney, Australia	11-50	19 contacts →
	Indirect evidence “Threat Intelligence is different.” Source: RevenueBase Database · checked Aug 31, 2026
8	Intrix Cyber Security	Partial evidence	Sydney, Australia	11-50	16 contacts →
	Partial evidence “Intrix Cyber Security protect businesses with our Information Security Services.” Source: RevenueBase Database · checked Aug 31, 2026
9	Skylight Cyber Security	Partial evidence	Sydney, Australia	11-50	15 contacts →
	Partial evidence “Skylight is a boutique cyber security practice providing high-end services to the modern enterprise.” Source: RevenueBase Database · checked Aug 31, 2026
10	Diesec	Partial evidence	Sydney, Australia	51-200	15 contacts →
	Partial evidence “DIESEC, founded by Carl Dietzel in 2009, is dedicated to securing your most valuable asset - your data.” Source: RevenueBase Database · checked Aug 31, 2026
11	Sentaris	Partial evidence	Sydney, Australia	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 Aug 31, 2026
12	Morrisec	Partial evidence	Sydney, Australia	11-50	14 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 Aug 31, 2026
13	Cyberhub Group	Partial evidence	Sydney, Australia	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 Aug 31, 2026
14	Cybra Security	Partial evidence	Sydney, Australia	1-10	9 contacts →
	Partial evidence “Our mission is simple, make cyber security accessible to all Australian businesses.” Source: RevenueBase Database · checked Aug 31, 2026
15	DVULN	Indirect evidence	Sydney, Australia	1-10	7 contacts →
	Indirect evidence “Founded in 2016, Dvuln is a globally CREST-certified cybersecurity firm specialising in advanced penetration testing, adversary simulation, attacker-led threat hunting, and…” Source: RevenueBase Database · checked Aug 31, 2026
16	Iqbox PTY LTD	Partial evidence	Sydney, Australia	11-50	7 contacts →
	Partial evidence “IQBOX helps you pinpoint your organization’s most pressing vulnerabilities, eliminate critical threats, and implement a security program that leaves you free to focus on…” Source: RevenueBase Database · checked Aug 31, 2026
17	D2unet PTY LTD	Indirect evidence	Sydney, Australia	1-10	6 contacts →
	Indirect evidence “At D2UNet, we take a multi-faceted approach to cybersecurity.” Source: RevenueBase Database · checked Aug 31, 2026
18	Cyberlinx	Partial evidence	Sydney, Australia	1-10	6 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 Aug 31, 2026
19	Vertex Cyber Security	Partial evidence	Sydney, Australia	11-50	6 contacts →
	Partial evidence “Vertex Cyber Security provides an extensive Cyber Security capability of Technology and Security Services for organisations across Sydney.” Source: RevenueBase Database · checked Aug 31, 2026
20	Fort1 PTY LTD	Indirect evidence	Sydney, Australia	1-10	5 contacts →
	Indirect evidence “Fort1: Comprehensive Cybersecurity Services based in Australia.” Source: RevenueBase Database · checked Aug 31, 2026
21	Cyber Citadel	Partial evidence	Sydney, Australia	1-10	5 contacts →
	Partial evidence “We are cyber security specialists.” Source: RevenueBase Database · checked Aug 31, 2026
22	CYBIZ	Partial evidence	Sydney, Australia	1-10	4 contacts →
	Partial evidence “CyBiz is an Australian and New Zealand cyber security advisory and services firm helping organisations strengthen resilience, reduce exposure, and lead confidently through cyber…” Source: RevenueBase Database · checked Aug 31, 2026
23	Sense Of Security	Indirect evidence	Sydney, Australia	11-50	3 contacts →
	Indirect evidence Source: RevenueBase Database · checked Aug 31, 2026
24	Undark Solutions Undark.io	Indirect evidence	Sydney, Australia	1-10	2 contacts →
	Indirect evidence “Undark Solutions, a boutique cybersecurity consultancy founded in 2009, empowers enterprises with robust offensive & defensive solutions, including preventative strategies &…” Source: RevenueBase Database · checked Aug 31, 2026
25	Walking Comet	Indirect evidence	Sydney, Australia	1-10	2 contacts →
	Indirect evidence “Imagine knowing your business, staff, and customers could be under threat.” Source: RevenueBase Database · checked Aug 31, 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: api security 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 api security companies.
Partial evidence: Its own public description names part of api security companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name api security 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 54 api security companies based in Sydney, Australia

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Api security companies based in Sydney, Australia at a glance

As of Aug 31, 2026

41.6%Verified-email coverage

3.4%Mobile-number coverage

7.1Average contacts per company

1-10Median size (employees)

100.0%Largest-city concentration · Sydney

Aug 31, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

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 api security 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 Sydney, Australia whose own description of what they do matches “api security 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 api security 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 api security companies, and records with no verified work email. Companies headquartered outside Sydney 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, 160 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 August 31, 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.

Api security companies by metro in Australia

Api security companies in Sydney54
Api security companies in Melbourne37

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 api security 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 api security companies are there based in Sydney, Australia?

RevenueBase identified 54 api security companies headquartered in Sydney, Australia as of August 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 api security companies?

Sydney leads with 54 headquartered companies, followed by Melbourne (37) and Canberra (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 160 verified decision-maker contacts tracked across these 54 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on August 31, 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.