Company lists · Data refreshed September 2026
Top 25 Homeland security consultants based in Australia
RevenueBase identified 104 homeland security consultants headquartered in Australia as of September 2026 and tracks 724 professional contacts across them, including 284 with verified work emails. Melbourne is the largest hub.
This list covers homeland 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 28, 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.
The 25 largest homeland security consultants based in Australia
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 55 contacts → | ||||
Partial evidence “Australian owned Advent Security has been a leader in providing exceptional, value-for-money services to local, national and international clients in the public, private and…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 2 | 52 contacts → | ||||
Strong evidence “SCG specialises in providing independent security and communications engineering, and security threat and risk consultancy services, to clients operating in challenging security…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 3 | 37 contacts → | ||||
Partial evidence “SECURITY AND TECHNOLOGY EXPERTS ENGINEERING FOR A BETTER WORLD.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 4 | 35 contacts → | ||||
Indirect evidence “Noetic challenges clients to think differently and adopt new approaches to find solutions.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 5 | 26 contacts → | ||||
Indirect evidence “Panoptic Solutions is trusted by some of the most influential organisations and individuals in the world to prepare crisis, protection and contingency plans; and operations for…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 6 | 17 contacts → | ||||
Strong evidence “High Risk Security Group (Asia-Pacific)(“HRSG”), is a highly respected and professional safety and security consultancy company.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 7 | 12 contacts → | ||||
Strong evidence “Aegis9 is an Australian owned consultancy that specialises in providing tailored security solutions for both public and private sector clients, based on their specific needs.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 8 | 12 contacts → | ||||
Indirect evidence “Workforce Resilience’s (WR) owner and Managing Director, Scott Harris, spent 26 years working in law enforcement before realising that he could do greater good for the community…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 9 | 11 contacts → | ||||
Partial evidence “At Proton Security, we provide our clients with specialised advice and solutions unique to their business needs and risk profile.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 10 | 10 contacts → | ||||
Indirect evidence “Felix is a boutique professional services company based in Queensland providing specialist consulting and strategic advisory services to government and the private sector.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 11 | 8 contacts → | ||||
Indirect evidence “Helex Pty.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 12 | 7 contacts → | ||||
Partial evidence “STSC delivers Security, Technology, and Strategy Consulting services to commercial, corporate, and executive customers; a field in which we have been operating for almost fifteen…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 13 | 6 contacts → | ||||
Partial evidence “HATAMOTO is an Australian owned consultancy firm providing services and specialist advice in the field of Business Resilience with a focus on the Aviation, Critical…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 14 | 6 contacts → | ||||
Indirect evidence “Personal safety is what FERST is all about.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 15 | 5 contacts → | ||||
Partial evidence “We're a close-knit team of passionate and compassionate security professionals who genuinely love helping others.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 16 | 4 contacts → | ||||
Strong evidence “PACE First is an independent risk, security and crisis consultancy specialising in helping organisations and individuals access the best preparation, assistance, communication and…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 17 | 4 contacts → | ||||
Indirect evidence “Risk-e Business is dedicated to offering a client focused service that delivers excellence through a wide range of nationally and internationally recognised best practice.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 18 | 4 contacts → | ||||
Partial evidence “Redwood Security is a young cyber security consulting company committed to doing more for its clients.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 19 | 3 contacts → | ||||
Indirect evidence “iTools is an advisory and technology business creating and protecting value through innovation.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 20 | 3 contacts → | ||||
Strong evidence “At Inverus Group®, we specialize in providing security, risk management, and resilience consultancy services specifically tailored to meet the needs of government agencies and…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 21 | 3 contacts → | ||||
Partial evidence “Security is not an exact science.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 22 | 3 contacts → | ||||
Strong evidence “A boutique consultancy to specialise in investigation, risk, governance, security planning and related strategy development and implementation.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 23 | 3 contacts → | ||||
Indirect evidence “Leveraging our strategic planning, project management, operations, and logistical experience we ensure that high-level service standards are delivered and maintained.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 24 | 2 contacts → | ||||
Partial evidence “Wilson Hammond Group (WHGroup) are a proudly Australian owned company specialising in Defence and Government Consultancy.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 25 | 2 contacts → | ||||
Partial evidence “RAISING AUSTRALIAN SECURITY AND BUSINESS RESILIENCE TO NEW HEIGHTS.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
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: homeland 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 homeland security consultants.
- Partial evidence
- Its own public description names part of homeland security consultants, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name homeland 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 104 homeland security consultants based in Australia
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Homeland security consultants based in Australia at a glance
As of Sep 28, 2026Companies by employee count
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 104 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 homeland 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 “homeland 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 homeland 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 homeland 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, 284 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 28, 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 homeland 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 homeland security consultants are there based in Australia?
RevenueBase identified 104 homeland 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?
Advent Security Australia & NEW Zealand, headquartered in Melbourne, tops this list with the largest team on record.
Which city has the most homeland security consultants?
Melbourne leads with 20 headquartered companies, followed by Sydney (18) and Canberra (10).
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 284 verified decision-maker contacts tracked across these 104 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 28, 2026.
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Download this list →Related lists
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- Homeland security consultants based in France
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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.
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