Company lists · Data refreshed September 2026

Top 21 Api security consulting companies based in Australia

RevenueBase identified 56 api security consulting companies headquartered in Australia as of September 2026 and tracks 193 professional contacts across them, including 74 with verified work emails. Sydney is the largest hub.

This list covers api security consulting 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 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
56Companies
193Contacts tracked
74Verified emails
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The 21 largest api security consulting companies based in Australia

Ranked by team size
Top 21 of 56 api security consulting companies 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 consulting 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Strong evidenceSydney Cbd, AustraliaHQ checked Sep 27, 202611-5017 contacts →

Strong evidence

“Security Centric is a boutique specialist information security consulting and services organisation.”

Source: RevenueBase Database · checked Sep 27, 2026
2Indirect evidenceCremorne, AustraliaHQ checked Sep 27, 202611-5014 contacts →

Indirect evidence

“Facing the Complexities of Cybersecurity?”

Source: RevenueBase Database · checked Sep 27, 2026
3Indirect evidenceMelbourne, AustraliaHQ checked Sep 27, 202611-5012 contacts →

Indirect evidence

“Expert-led penetration testing, supported by AI-assisted analysis, to uncover real weaknesses and strengthen systems against real-world threats.”

Source: RevenueBase Database · checked Sep 27, 2026
4Partial evidencePerth, AustraliaHQ checked Sep 27, 20261-108 contacts →

Partial evidence

“CyberProof is an Australian based cybersecurity consulting and risk advisory provider.”

Source: RevenueBase Database · checked Sep 27, 2026
5Partial evidenceSouthbank, AustraliaHQ checked Sep 27, 202611-507 contacts →

Partial evidence

“Crysp Consulting (Crysp) was founded by two professionals with collective experience of more than 35 years in the industry.”

Source: RevenueBase Database · checked Sep 27, 2026
6Indirect evidenceSydney, AustraliaHQ checked Sep 27, 20261-106 contacts →

Indirect evidence

“Project Black is a CREST accredited Australian cybersecurity consultancy providing exceptional, transparent, and value-driven solutions.”

Source: RevenueBase Database · checked Sep 27, 2026
7Partial evidenceSydney, AustraliaHQ checked Sep 27, 202611-506 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 Sep 27, 2026
8Partial evidenceMelbourne, AustraliaHQ checked Sep 27, 202611-505 contacts →

Partial evidence

“Secure computing and digital security transformation.”

Source: RevenueBase Database · checked Sep 27, 2026
9Strong evidenceAdelaide, AustraliaHQ checked Sep 27, 20261-105 contacts →

Strong evidence

“Alchemy Security Consulting is committed to establishing itself as an industry leader in emulating, detecting and defending against advanced persistent threats utilizing the…”

Source: RevenueBase Database · checked Sep 27, 2026
10Partial evidenceNaremburn, AustraliaHQ checked Sep 27, 20261-105 contacts →

Partial 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
11Partial evidenceSydney, AustraliaHQ checked Sep 27, 20261-104 contacts →

Partial evidence

“At Patterned Security, we focus on building modern approaches to security strategy, architecture and design.”

Source: RevenueBase Database · checked Sep 27, 2026
12Partial evidenceBrisbane, AustraliaHQ checked Sep 27, 20261-104 contacts →

Partial 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
13Indirect evidenceDawes Point, AustraliaHQ checked Sep 27, 20261-104 contacts →

Indirect evidence

“Fort Safe is a Cybersecurity Consultancy in Australia that provides industry-leading cybersecurity services to companies in Sydney, Melbourne, Canberra and Brisbane.”

Source: RevenueBase Database · checked Sep 27, 2026
14Partial evidenceMelbourne, AustraliaHQ checked Sep 27, 202611-503 contacts →

Partial evidence

“Security is not an exact science.”

Source: RevenueBase Database · checked Sep 27, 2026
15Indirect evidenceSydney, AustraliaHQ checked Sep 27, 20261-102 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 Sep 27, 2026
16Partial evidenceSydney, AustraliaHQ checked Sep 27, 20261-102 contacts →

Partial evidence

“XIGSAW IS SOLVING THE IT SECURITY PUZZLE Businesses buy on advise and desire the best outcome.”

Source: RevenueBase Database · checked Sep 27, 2026
17Partial 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
18Strong evidenceCanberra, AustraliaHQ checked Sep 27, 202611-501 contacts →

Strong evidence

“PCG Cyber consultancy services provide tailored and honest cyber security consulting to Government and Industry organisations across Australia that ensures every customer is as…”

Source: RevenueBase Database · checked Sep 27, 2026
19Partial evidenceMelbourne, AustraliaHQ checked Sep 27, 202611-501 contacts →

Partial 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
20Strong evidenceBrisbane, AustraliaHQ checked Sep 27, 20261-101 contacts →

Strong evidence

“Offensive security specialists providing serious security consulting to businesses that truly care.”

Source: RevenueBase Database · checked Sep 27, 2026
21Partial evidenceSydney, AustraliaHQ checked Sep 27, 20261-101 contacts →

Partial evidence

“A specialist Cyber Security consultancy, partnering with organisations through CISO-as-a-Service, Third Party Risk Management and Penetration Testing Solutions.”

Source: RevenueBase Database · checked Sep 27, 2026

Showing 21 of 56 api security consulting companies based in Australia

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Api security consulting companies based in Australia at a glance

As of Sep 27, 2026
38.3%Verified-email coverage
3.4Average contacts per company
1-10Median size (employees)
25.0%Largest-city concentration · Sydney
Sep 27, 2026Page data refreshed

Companies by employee count

1-10
36
11-50
17
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 56 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 consulting 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 “api security consulting 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 consulting 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 consulting 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, 74 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 consulting 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 consulting companies are there based in Australia?

RevenueBase identified 56 api security consulting 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?

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

Which city has the most api security consulting companies?

Sydney leads with 14 headquartered companies, followed by Melbourne (11) and Brisbane (8).

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 74 verified decision-maker contacts tracked across these 56 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.