Company lists · Data refreshed September 2026

Top 25 Managed security service providers based in Melbourne, Australia

RevenueBase identified 156 managed security service providers headquartered in Melbourne, Australia as of September 2026 and tracks 2,332 professional contacts across them, including 1,140 with verified work emails. Melbourne is the largest hub.

This list covers managed security service providers headquartered in Melbourne, 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, how directly it supports the match, and when it was last checked. Data refreshed September 5, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 Match evidence on every row Refreshed Sep 5, 2026 86% judged on-target in blind review
156Companies
2,332Contacts tracked
1,140Verified emails
Unlock all 156 companies Free signup · no credit card · 500 free credits

The 25 largest managed security service providers based in Melbourne, Australia

Ranked by team size
Top 25 of 156 managed security service providers based in Melbourne, Australia, ranked by team size, largest first. Data refreshed Sep 5, 2026. Evidence rates how directly each company's own description names managed security service providers: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#CompanyHeadquartersEmployeesContacts
1
Triskele LabsIndirect evidence
Melbourne, AustraliaHQ checked Sep 5, 202651-200123

“Triskele Labs is one of Australia’s fastest growing cybersecurity companies.”

Source: company website · checked Sep 5, 2026
2
SkillfieldPartial evidence
Melbourne, AustraliaHQ checked Sep 5, 202651-20062

“Skillfield is a Melbourne-born Cyber Security, AI and big data solutions provider and professional services consultancy.”

Source: company website · checked Sep 5, 2026
3
Ctrl CyberIndirect evidence
Melbourne, AustraliaHQ checked Sep 5, 202651-20054

“ctrl:cyber is an Australian owned and operated cybersecurity partner delivering tailored end-to-end solutions for industry-leading organisations.”

Source: company website · checked Sep 5, 2026
4
Dimiya TechIndirect evidence
Melbourne, AustraliaHQ checked Sep 5, 202651-20050

“DIMIYA Tech is a Melbourne, Australia based- global Cybersecurity and IT services provider supporting organizations that require secure, scalable, and high-performance technology…”

Source: company website · checked Sep 5, 2026
5
Wipro SheldeIndirect evidence
Melbourne, AustraliaHQ checked Sep 5, 202651-20047

“Our mission is to help our clients protect their assets, reputation, and customers from cyber threats, while also enabling them to embrace digital transformation and innovation…”

Source: company website · checked Sep 5, 2026
6
Affinity MSPPartial evidence
Melbourne, AustraliaHQ checked Sep 5, 202651-20038

“Affinity MSP is consistently recognised among the best MSPs in Australia, delivering Managed IT Support, cybersecurity, and cloud services to businesses nationwide.”

Source: company website · checked Sep 5, 2026
7
Borderless CSIndirect evidence
Melbourne, AustraliaHQ checked Sep 5, 202611-5026

“About Us - Australia’s leading cybersecurity specialist, delivering comprehensive protection by Australian-based consultants only-no offshore teams- 100% cybersecurity-focused…”

Source: company website · checked Sep 5, 2026
8
FortianStrong evidence
Melbourne, AustraliaHQ checked Sep 5, 202611-5025

“Fortian is a leading Australian company specialising in cyber security, privacy, and technology risk management.”

Source: company website · checked Sep 5, 2026
9
Tanto SecurityPartial evidence
Melbourne, AustraliaHQ checked Sep 5, 202611-5019

“We provide offensive cyber security services to world leading organisations.”

Source: company website · checked Sep 5, 2026
10
CyberseconPartial evidence
Melbourne, AustraliaHQ checked Sep 5, 202611-5018

“CyberSecOn is an Information security company with a presence in Australia, USA and India.”

Source: company website · checked Sep 5, 2026
11
Phronesis SecurityIndirect evidence
Melbourne, AustraliaHQ checked Sep 5, 202611-5017

“The ancient Greeks called using knowledge to achieve a practical good 'phronesis', or φρόνησῐς.”

Source: company website · checked Sep 5, 2026
12Melbourne, AustraliaHQ checked Sep 5, 2026201-50017

“Tesserent provides enterprise-grade, tailored cybersecurity solutions to mid sized and enterprise level organisations across all industries and all levels of government in…”

Source: company website · checked Sep 5, 2026
13
Morfit Group ConsultingIndirect evidence
Melbourne, AustraliaHQ checked Sep 5, 202651-20015

“Morfit Group Consulting is a pure IT Consulting and Professional Services organisation.”

Source: company website · checked Sep 5, 2026
14
CosiveStrong evidence
Melbourne, AustraliaHQ checked Sep 5, 202611-5013

“We help organisations get better at Security Operations and Cyber Threat Intelligence with specialised consulting, engineering, and managed security platforms.”

Source: company website · checked Sep 5, 2026
15
Helpdesk Computer SystemsPartial evidence
Melbourne, AustraliaHQ checked Sep 5, 20261-1013

“Helpdesk was founded in 2008 to provide innovative and cost-effective management of IT systems for SMEs across Australia.”

Source: company website · checked Sep 5, 2026
16
Forensic ITPartial evidence
Melbourne, AustraliaHQ checked Sep 5, 202611-5012

“Forensic IT is a specialised cyber security firm with expertise in Digital Forensics and Incident Response (DFIR), and securing Industrial Control Systems (CIS).”

Source: company website · checked Sep 5, 2026
17
Secured EnterprisePartial evidence
Melbourne, AustraliaHQ checked Sep 5, 202651-20012

“Secured Enterprise is a globally recognized pioneer in online cyber security that collaborate with businesses in Australia, Europe, South Africa, North America, and New Zealand.”

Source: company website · checked Sep 5, 2026
18
CyberriskStrong evidence
Melbourne, AustraliaHQ checked Sep 5, 202611-5011

“Information security and technology risk management consulting - at CyberRisk we design, implement and operate information security programs to allow you to reduce and manage your…”

Source: company website · checked Sep 5, 2026
19
MSP Blueshift PTY LTDIndirect evidence
Melbourne, AustraliaHQ checked Sep 5, 202611-5011

“At MSP Blueshift, we’ve been helping small to medium-sized enterprises (SMEs) transform their IT landscape since 2010.”

Source: company website · checked Sep 5, 2026
20
Cynch SecurityIndirect evidence
Melbourne, AustraliaHQ checked Sep 5, 20261-1010

“We are passionate about building a world where every business is resilient to cybersecurity risks, no matter what their size.”

Source: company website · checked Sep 5, 2026
21
Built On ITPartial evidence
Melbourne, AustraliaHQ checked Sep 5, 20261-109

Managed technology solutions.”

Source: company website · checked Sep 5, 2026
22Melbourne, AustraliaHQ checked Sep 5, 202611-509

“Established in 1985 in Melbourne, Victoria - SIAX began as a ‘break-fix’ IT services company, servicing small businesses and home network environments leveraging partnerships to…”

Source: company website · checked Sep 5, 2026
23
Security ImpossiblePartial evidence
Melbourne, AustraliaHQ checked Sep 5, 20261-108

“Cyber Range, SOC designing and implementation, risk and security assessment.”

Source: company website · checked Sep 5, 2026
24
ShadowlensPartial evidence
Melbourne, AustraliaHQ checked Sep 5, 202611-506

“ShadowLens is a cyber-security services and solutions provider that specialises in the synergy between users and data to protect digital information.”

Source: company website · checked Sep 5, 2026
25
Proveho NetworksPartial evidence
Melbourne, AustraliaHQ checked Sep 5, 202611-505

“Secure computing and digital security transformation.”

Source: company website · checked Sep 5, 2026

Showing 25 of 156 managed security service providers based in Melbourne, Australia

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Managed security service providers based in Melbourne, Australia at a glance

As of Sep 5, 2026
1-10Median size (employees)
MelbourneLargest hub · 156 HQs
Contacts with mobile numbers
Sep 5, 2026Data refreshed

Companies by employee count

1-10
93
11-50
40
51-200
18
201-500
3
1,001-5,000
1

Email recency for this list is measured across the whole Australia list rather than this city, so it is reported there. Company counts and contact totals on this page are exact for Melbourne, over 156 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 managed security service providers, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Companies headquartered in Melbourne, Australia whose own description of what they do matches “managed security service providers”. Matching reads each company's description, not its industry code or its name.
What we exclude
Companies whose own description does not clearly place them among managed security service providers, and records with no verified work email. Companies headquartered outside Melbourne 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 an evidence 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, 1,140 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 5, 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.

Managed security service providers by metro in Australia

Frequently asked

How many managed security service providers are there based in Melbourne, Australia?

RevenueBase identified 156 managed security service providers headquartered in Melbourne, 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 managed security service providers?

Melbourne leads with 156 headquartered companies, followed by Sydney (155) and Brisbane (62).

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 1,140 verified decision-maker contacts tracked across these 156 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 5, 2026.

Ready to reach these companies? Verified emails and direct dials for all 156 managed security service providers based in Melbourne, Australia. Start with a free account, no credit card.

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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 SmartSearch, 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.