Company lists · Data refreshed September 2026

Top 15 Api security testing services based in Australia

RevenueBase identified 42 api security testing services headquartered in Australia as of September 2026 and tracks 158 professional contacts across them, including 48 with verified work emails. Sydney is the largest hub.

This list covers api security testing 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 27, 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 27, 2026 86% judged on-target in blind review
42Companies
158Contacts tracked
48Verified emails
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The 15 largest api security testing services based in Australia

Ranked by team size
Top 15 of 42 api security testing services based in Australia, ranked by team size, largest first. Data refreshed Sep 27, 2026. RevenueBase Smart Search rates how each company's information relates to api security testing 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
1Strong evidenceSydney, AustraliaHQ checked Sep 27, 202611-5023 contacts →

Strong evidence

“SilentGrid is an offensive security consultancy with a focus on adversary simulation and penetration testing.”

Source: RevenueBase Database · checked Sep 27, 2026
2Indirect evidenceSydney, AustraliaHQ checked Sep 27, 202611-5019 contacts →

Indirect evidence

“Threat Intelligence is different.”

Source: RevenueBase Database · checked Sep 27, 2026
3Strong evidenceMelbourne, AustraliaHQ checked Sep 27, 20261-107 contacts →

Strong evidence

“Operating from Melbourne, Australia, we offer security testing and training for Australia and specialised remote testing for countries including Ireland, the United Kingdom, the…”

Source: RevenueBase Database · checked Sep 27, 2026
4Partial evidenceCanberra, AustraliaHQ checked Sep 27, 20261-105 contacts →

Partial evidence

“Irradiate Security is a cyber security focused organisation that aims to promote safe online practices for Australian businesses.”

Source: RevenueBase Database · checked Sep 27, 2026
5Strong evidenceNaremburn, AustraliaHQ checked Sep 27, 20261-105 contacts →

Strong evidence

“Intact Security provides services around; security and vulnerability testing, security breaches and investigations, security awareness and compliance.”

Source: RevenueBase Database · checked Sep 27, 2026
6Partial evidenceMelbourne, AustraliaHQ checked Sep 27, 202611-505 contacts →

Partial evidence

“Cyber Forte is an Australian owned Cyber Security company with headquarters in Melbourne.”

Source: RevenueBase Database · checked Sep 27, 2026
7Strong evidenceBarton, AustraliaHQ checked Sep 27, 20261-104 contacts →

Strong evidence

“We are highly skilled and experienced cyber security professionals offering comprehensive penetration testing services to businesses and organisations.”

Source: RevenueBase Database · checked Sep 27, 2026
8Strong evidenceBrisbane, AustraliaHQ checked Sep 27, 20261-104 contacts →

Strong evidence

“Acumenis is an independent Australian cyber security consultancy delivering senior-led testing, assurance, and advisory to organisations across Australia and internationally.”

Source: RevenueBase Database · checked Sep 27, 2026
9Partial evidenceBarangaroo, AustraliaHQ checked Sep 27, 20261-104 contacts →

Partial evidence

“We are cyber security specialists.”

Source: RevenueBase Database · checked Sep 27, 2026
10Partial evidencePerth, AustraliaHQ checked Sep 27, 20261-103 contacts →

Partial evidence

“Outplat Security is a Perth-based compliance practice delivering Compliance Management as a Service (CMaaS) to WA organisations that face real compliance obligations and no…”

Source: RevenueBase Database · checked Sep 27, 2026
11Partial evidenceBrisbane City, AustraliaHQ checked Sep 27, 20261-102 contacts →

Partial evidence

“Radiant Security is an Australian based firm focused on modern security practices primarily within the application security, cloud and infrastructure space.”

Source: RevenueBase Database · checked Sep 27, 2026
12Partial evidenceSydney, AustraliaHQ checked Sep 27, 20261-102 contacts →

Partial evidence

“Core Sentinel: Australia’s Premier Penetration Testing & Cybersecurity Experts.”

Source: RevenueBase Database · checked Sep 27, 2026
13Indirect evidenceMelbourne, AustraliaHQ checked Sep 27, 202611-501 contacts →

Indirect evidence

“Global Sentynel is a consulting company that commenced operations in June 2023 in Australia, the United States, and Mexico.”

Source: RevenueBase Database · checked Sep 27, 2026
14Strong evidenceSydney, AustraliaHQ checked Sep 27, 20261-101 contacts →

Strong evidence

“At CyberWave, we are a leading provider of penetration testing services, backed by founders with 20 years of extensive IT and security experience.”

Source: RevenueBase Database · checked Sep 27, 2026
15Partial evidenceCanberra, AustraliaHQ checked Sep 27, 20261-101 contacts →

Partial evidence

“Cyberwhip is specialised in penetration testing of IT infrastructure, web, and mobile applications.”

Source: RevenueBase Database · checked Sep 27, 2026

Showing 15 of 42 api security testing services based in Australia

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Api security testing services based in Australia at a glance

As of Sep 27, 2026
30.4%Verified-email coverage
3.8Average contacts per company
1-10Median size (employees)
23.8%Largest-city concentration · Sydney
Sep 27, 2026Page data refreshed

Companies by employee count

1-10
29
11-50
12
201-500
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 42 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 api security testing 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 “api security testing 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 api security testing 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 api security testing 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, 48 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 27, 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 api security testing 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 api security testing services are there based in Australia?

RevenueBase identified 42 api security testing 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?

Silentgrid Security, headquartered in Sydney, tops this list with the largest team on record.

Which city has the most api security testing services?

Sydney leads with 10 headquartered companies, followed by Melbourne (8) and Canberra (5).

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 48 verified decision-maker contacts tracked across these 42 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 27, 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.