Company lists · Data refreshed September 2026

Top 25 Operational technology security consultants based in Australia

Name: Operational technology security consultants based in Australia
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 48 companies tracked

RevenueBase identified 48 operational technology security consultants headquartered in Australia as of September 2026 and tracks 446 professional contacts across them, including 255 with verified work emails. Melbourne is the largest hub.

This list covers operational technology security consultants 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 29, 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 29, 2026 86% judged on-target in blind review

48Companies

446Contacts tracked

255Verified emails

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The 25 largest operational technology security consultants based in Australia

Ranked by team size

Top 25 of 48 operational technology security consultants based in Australia, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to operational technology security consultants: 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	MIPAC	Partial evidence	Brisbane, AustraliaHQ checked Sep 29, 2026	51-200	126 contacts →
	Partial evidence “GLOBAL ENGINEERING DELIVERY WITH OFFICES IN USA, CANADA AND AUSTRALIA Our mission is to provide high-quality control system solutions to enhance operational performance and…” Source: RevenueBase Database · checked Sep 29, 2026
2	Intellect Systems	Strong evidence	Perth, AustraliaHQ checked Sep 29, 2026	51-200	84 contacts →
	Strong evidence “Intellect Systems is an end-to-end Operational Technology solution provider, specialising in Control Systems, Electrical Engineering, Communications, and Industrial IT…” Source: RevenueBase Database · checked Sep 29, 2026
3	Opusv Tech Group	Indirect evidence	Oakleigh, AustraliaHQ checked Sep 29, 2026	11-50	28 contacts →
	Indirect evidence “OpusV has been operating in the infrastructure design and support space for over 20 years.” Source: RevenueBase Database · checked Sep 29, 2026
4	Secolve	Strong evidence	Sydney, AustraliaHQ checked Sep 29, 2026	11-50	24 contacts →
	Strong evidence “Secolve is Australia's dedicated Operational Technology (OT) cybersecurity partner, protecting the critical infrastructure that powers everyday life across energy, water…” Source: RevenueBase Database · checked Sep 29, 2026
5	SIS Industrial Cyber Security	Partial evidence	South Yarra, AustraliaHQ checked Sep 29, 2026	11-50	18 contacts →
	Partial evidence “SIS Industrial Cyber Security protects what the world depends on but rarely sees.” Source: RevenueBase Database · checked Sep 29, 2026
6	Tier Sixteen	Strong evidence	West Perth, AustraliaHQ checked Sep 29, 2026	11-50	15 contacts →
	Strong evidence “As Industrial Automation and Operational Technology Experts, Tier Sixteen provides specialist engineering and automation services, delivering intelligent solutions and expert…” Source: RevenueBase Database · checked Sep 29, 2026
7	Cosive	Strong evidence	Melbourne, AustraliaHQ checked Sep 29, 2026	11-50	13 contacts →
	Strong evidence “We help organisations get better at Security Operations and Cyber Threat Intelligence with specialised consulting, engineering, and managed security platforms.” Source: RevenueBase Database · checked Sep 29, 2026
8	Operational Technology Solutions PTY LTD	Strong evidence	Melbourne, AustraliaHQ checked Sep 29, 2026	51-200	12 contacts →
	Strong evidence “Operational Technology Solutions (OTS) deploys the utility industry’s smartest people with extensive hands-on industry experience and unrivalled technical expertise to lead…” Source: RevenueBase Database · checked Sep 29, 2026
9	Riot Solutions	Partial evidence	Brisbane, AustraliaHQ checked Sep 29, 2026	51-200	7 contacts →
	Partial evidence “RIOT is a local, national provider of managed cyber security services across both IT and OT environments that differentiates itself by offering customers access to experts in the…” Source: RevenueBase Database · checked Sep 29, 2026
10	Langdale Consultants	Strong evidence	Chatswood, AustraliaHQ checked Sep 29, 2026	1-10	6 contacts →
	Strong evidence “Operating since 1995, Langdale provides Engineering and IT consulting and technical services with a focus in enterprise Information Technology and Operational Technology…” Source: RevenueBase Database · checked Sep 29, 2026
11	Itsec Australia NEW Zealand	Indirect evidence	Melbourne, AustraliaHQ checked Sep 29, 2026	201-500	5 contacts →
	Indirect evidence “ITSEC Australia & New Zealand helps organisations build resilience across IT, OT, and IoT environments.” Source: RevenueBase Database · checked Sep 29, 2026
12	Cyber Industrial Networks PTY LTD	Strong evidence	Mayfield West, AustraliaHQ checked Sep 29, 2026	1-10	4 contacts →
	Strong evidence “Cyber Industrial Networks (Ci-Net) is an Australian-owned OT/IT and industrial networking business specialising in the design, deployment and security of critical operational…” Source: RevenueBase Database · checked Sep 29, 2026
13	Goto Electrical PTY LTD	Strong evidence	North Lakes, AustraliaHQ checked Sep 29, 2026	1-10	4 contacts →
	Strong evidence “Goto Electrical Pty Ltd provides industry leading consultancy, design and integration services for operational technology to Critical Infrastructure clients.” Source: RevenueBase Database · checked Sep 29, 2026
14	Akson Australia	Indirect evidence	Ultimo, AustraliaHQ checked Sep 29, 2026	1-10	4 contacts →
	Indirect evidence “AKSON Australia is a Sydney-based IT services provider delivering innovative and reliable solutions tailored to meet the needs of businesses across diverse industries.” Source: RevenueBase Database · checked Sep 29, 2026
15	DGA Consulting	Strong evidence	Sydney, AustraliaHQ checked Sep 29, 2026	1-10	3 contacts →
	Strong evidence “DGA Consulting is a specialist Operational Technology (OT) consulting company consisting of talented and experienced professionals who collaborate to solve client challenges in…” Source: RevenueBase Database · checked Sep 29, 2026
16	Utility Intelligence PTY LTD	Strong evidence	Melbourne, AustraliaHQ checked Sep 29, 2026	1-10	3 contacts →
	Strong evidence “Operational Technology (OT) Consultants to the Utility sector; smart metering, communications for infrastructure, Supervisory Control and Data Acquisition (SCADA), industrial…” Source: RevenueBase Database · checked Sep 29, 2026
17	Availability System Engineering	Partial evidence	Perth, AustraliaHQ checked Sep 29, 2026	11-50	2 contacts →
	Partial evidence “Availability System Engineering is a discipline that focusses on the design, development, and maintenance for technologies that control, protect, and support business processes to…” Source: RevenueBase Database · checked Sep 29, 2026
18	Ovalis PTY LTD	Strong evidence	Newcastle West, AustraliaHQ checked Sep 29, 2026	1-10	2 contacts →
	Strong evidence “After years working in IT management and cybersecurity, we kept seeing the same pattern: businesses investing in technology but leaving security as a second thought.” Source: RevenueBase Database · checked Sep 29, 2026
19	Engarde Cybersecurity	Indirect evidence	Oakleigh South, AustraliaHQ checked Sep 29, 2026	1-10	2 contacts →
	Indirect evidence “Offering cybersecurity consulting and advisory services to help secure your organisation.” Source: RevenueBase Database · checked Sep 29, 2026
20	Intec1	Partial evidence	Melbourne, AustraliaHQ checked Sep 29, 2026	51-200	1 contacts →
	Partial evidence “Proudly Australian-owned, InTec1 is a leading provider of professional security consulting services to the government, commercial and critical infrastructure sectors.” Source: RevenueBase Database · checked Sep 29, 2026
21	Defend OT	Partial evidence	Milton, AustraliaHQ checked Sep 29, 2026	1-10	1 contacts →
	Partial evidence “At Defend OT, our mission is simple and powerful:'To safeguard operations and secure your success.' This guiding principle drives everything we do as a leading provider of…” Source: RevenueBase Database · checked Sep 29, 2026
22	Emeseye	Strong evidence	Canberra, AustraliaHQ checked Sep 29, 2026	1-10	1 contacts →
	Strong evidence “We are a trusted provider of comprehensive Operational Technology (OT) audit, advisory, and remediation services, designed to ensure buildings are digitally ready to meet the…” Source: RevenueBase Database · checked Sep 29, 2026
23	Shakti Corp PTY LTD	Partial evidence	Hurstville Grove, AustraliaHQ checked Sep 29, 2026	1-10	1 contacts →
	Partial evidence “We are Engineering Consultants specialising in Functional Safety and Industrial Cybersecurity.” Source: RevenueBase Database · checked Sep 29, 2026
24	Blackmouse Digital Intelligence	Partial evidence	Brisbane, AustraliaHQ checked Sep 29, 2026	1-10	1 contacts →
	Partial evidence “BlackMouse Digital Intelligence specialises in Information and Cyber Security consulting services transforming organisational security practices by applying proven techniques.” Source: RevenueBase Database · checked Sep 29, 2026
25	Datafied	Strong evidence	Melbourne, AustraliaHQ checked Sep 29, 2026	1-10	1 contacts →
	Strong evidence “Datafied is an Australian smart building advisory consultancy delivering vendor-independent operational technology expertise for commercial property and healthcare sectors.” Source: RevenueBase Database · checked Sep 29, 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: operational technology security consultants. 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 operational technology security consultants.
Partial evidence: Its own public description names part of operational technology security consultants, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name operational technology security consultants. 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 48 operational technology security consultants based in Australia

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Operational technology security consultants based in Australia at a glance

As of Sep 29, 2026

57.2%Verified-email coverage

9.3Average contacts per company

1-10Median size (employees)

18.8%Largest-city concentration · Melbourne

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

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 48 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 operational technology security consultants, 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 “operational technology security consultants”. 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 operational technology security consultants), 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 operational technology security consultants, 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, 255 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 29, 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 operational technology security consultants, 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 operational technology security consultants are there based in Australia?

RevenueBase identified 48 operational technology security consultants 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?

MIPAC, headquartered in Brisbane, tops this list with the largest team on record.

Which city has the most operational technology security consultants?

Melbourne leads with 9 headquartered companies, followed by Brisbane (8) and Sydney (6).

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 255 verified decision-maker contacts tracked across these 48 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 29, 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.