Company lists · Data refreshed September 2026
Top 25 Security infrastructure design firms based in Australia
RevenueBase identified 500 security infrastructure design firms headquartered in Australia as of September 2026 and tracks 4,798 professional contacts across them, including 1,876 with verified work emails. Melbourne is the largest hub.
This list covers security infrastructure design firms 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.
The 25 largest security infrastructure design firms based in Australia
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 857 contacts → | ||||
Indirect evidence “NEC has delivered world-class technology solutions and services to customers across the globe, for more than a century.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 2 | 198 contacts → | ||||
Strong evidence “We offer insightful, original design thinking, implemented by a team with proven expertise to deliver flexible fit-for-purpose critical infrastructure solutions.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 3 | 178 contacts → | ||||
Indirect evidence “For more than 130 years, we have stood alongside our community, protecting homes, families, businesses, and communities.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 4 | 101 contacts → | ||||
Partial evidence “ARA Security delivers turnkey security solutions to a number of industries across Australia.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 5 | 88 contacts → | ||||
Partial evidence “Secom delivers electronic security solutions for commercial, industrial, and government clients throughout Australia.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 6 | 74 contacts → | ||||
Partial evidence “AG Security Group is South Australia's leading and largest locally owned security organisation that has been protecting Australians for more than 35 years.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 7 | 69 contacts → | ||||
Partial evidence “Australia's Multisite Security Specialist.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 8 | 67 contacts → | ||||
Partial evidence “SEME Solutions have been one of Australia’s leading provider of security solutions for over 50 years, specialising in the integration of CCTV, Access Control, Intruder Detection…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 9 | 63 contacts → | ||||
Partial evidence “Established in 2006, Sturdie has grown to become one of the most respected providers of high-quality electrical services and security technology in Australia and New Zealand.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 10 | 58 contacts → | ||||
Indirect evidence “AVI provides technology-based solutions to government, defence, mining and corporate communities.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 11 | 54 contacts → | ||||
Partial evidence “JD Security is an award-winning B2B systems integrator specialising in Security Systems, Video Surveillance, and Access Control.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 12 | 54 contacts → | ||||
Partial evidence “Inner Range is a manufacturer of integrated Video, Access Control and Security solutions.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 13 | 52 contacts → | ||||
Partial 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 29, 2026Thanks. The Data Team will review it. | |||||
| 14 | 51 contacts → | ||||
Partial evidence “Welcome to Fortis Security, founded in September of 2013, Fortis has grown year on year with customer support.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 15 | 39 contacts → | ||||
Indirect evidence “About Us With proven industry experience across various sectors including government, hospitality, warehousing, gaming, petroleum and retail, OmniVision has set new standards…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 16 | 37 contacts → | ||||
Partial evidence “SECURITY AND TECHNOLOGY EXPERTS ENGINEERING FOR A BETTER WORLD.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 17 | 36 contacts → | ||||
Partial evidence “Since 1993, SWI Fencing has been a leader in security fencing services.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 18 | 36 contacts → | ||||
Partial evidence “Dear Valued Customers & Suppliers, From May 1, 2017, CSM SEC Pty Ltd are pleased to announce we will be trading as a national electronic security and technology distributor at all…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 19 | 35 contacts → | ||||
Indirect evidence “Good people solving important problems.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 20 | 34 contacts → | ||||
Partial evidence “The Team at H3C Plus have been providing Security Solutions for 10 years and have over 50 years of combined expertise in the Electronic Security Industry.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 21 | 33 contacts → | ||||
Partial evidence “Security 1 was established as a separate entity in 2001 as the electronic and manpower section of the Newham group which has operated one of the nations leading Locksmith company…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 22 | 31 contacts → | ||||
Indirect evidence “Solutions for fully integrated, IP network CCTV, Access Control, Intruder Detection and Intercom Systems.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 23 | 29 contacts → | ||||
Partial evidence “Founded in 2007, SecuSafe has grown from a small warehouse in Auburn into a trusted national distributor of electronic security solutions, with branches across Sydney, Melbourne…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 24 | 28 contacts → | ||||
Strong evidence “OpusV has been operating in the infrastructure design and support space for over 20 years.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 25 | 28 contacts → | ||||
Partial evidence “Ava Group is a market leader of risk management services and technologies, trusted by some of the most security conscious commercial, industrial, military and government clients…” Source: RevenueBase Database · checked Sep 29, 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: security infrastructure design firms. 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 security infrastructure design firms.
- Partial evidence
- Its own public description names part of security infrastructure design firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name security infrastructure design firms. 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 500 security infrastructure design firms based in Australia
See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 1,876 reachable decision-makers.
Free signup · no credit card
Security infrastructure design firms based in Australia at a glance
As of Sep 29, 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 500 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 security infrastructure design firms, 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 “security infrastructure design firms”. 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 security infrastructure design firms), 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 security infrastructure design firms, 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, 1,876 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.
Security infrastructure design firms by metro
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 security infrastructure design firms, 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 security infrastructure design firms are there based in Australia?
RevenueBase identified 500 security infrastructure design firms 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?
NEC Australia, headquartered in Docklands, tops this list with the largest team on record.
Which city has the most security infrastructure design firms?
Melbourne leads with 50 headquartered companies, followed by Sydney (46) and Brisbane (25).
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 1,876 verified decision-maker contacts tracked across these 500 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.
Ready to reach these companies? Verified emails and direct dials for all 500 security infrastructure design firms based in Australia. Start with a free account, no credit card.
Download this list →Related lists
Security infrastructure design firms by geography
- Security infrastructure design firms based in Brisbane, Australia
- Security infrastructure design firms based in Melbourne, Australia
- Security infrastructure design firms based in Sydney, Australia
- Security infrastructure design firms based in Belo Horizonte, Brazil
- Security infrastructure design firms based in Curitiba, Brazil
- Security infrastructure design firms based in Rio De Janeiro, Brazil
- Security infrastructure design firms based in Sao Paulo, Brazil
- Security infrastructure design firms based in Calgary, Canada
- Security infrastructure design firms based in Mississauga, Canada
- Security infrastructure design firms based in Montreal, Canada
- Security infrastructure design firms based in Ottawa, Canada
- Security infrastructure design firms based in Toronto, Canada
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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Security infrastructure design firms based in Brisbane, Australia
- Security infrastructure design firms based in Melbourne, Australia
- Security infrastructure design firms based in Sydney, Australia
- Security infrastructure design firms based in Belo Horizonte, Brazil
- Security infrastructure design firms based in Curitiba, Brazil
- Security infrastructure design firms based in Rio De Janeiro, Brazil