Company lists · Data refreshed September 2026

Top 25 Systems integration companies based in Australia

RevenueBase identified 1,345 systems integration companies headquartered in Australia as of September 2026 and tracks 124,661 professional contacts across them, including 5,244 with verified work emails and 2,332 with mobile numbers. Sydney is the largest hub.

This list covers systems integration 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 6, 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 6, 2026 86% judged on-target in blind review
1,345Companies
124,661Contacts tracked
5,244Verified emails
2,332Mobile numbers
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest systems integration companies based in Australia

Ranked by team size
Top 25 of 1,345 systems integration companies based in Australia, ranked by team size, largest first. Data refreshed Sep 6, 2026. RevenueBase Smart Search rates how each company's information relates to systems integration 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
1Partial evidenceWangara, AustraliaHQ checked Sep 6, 2026n/a110,310 contacts →

“Autônomo Pty Ltd is a West Australian-owned technology integration company, established in 2018 and delivering end-to-end solutions across the mining, energy, and infrastructure…”

Source: company website · checked Sep 6, 2026
2Indirect evidenceSydney, AustraliaHQ checked Sep 6, 20261,001-5,000711 contacts →

“As a trusted end-to-end digital partner, we design, build, and manage IT solutions that turn bold visions into reality and set new standards of excellence for our clients.”

Source: company website · checked Sep 6, 2026
3Indirect evidenceMelbourne, AustraliaHQ checked Sep 6, 20261,001-5,000552 contacts →

“Axiom Technologies was founded to meet technological needs for Australia's medium & large scale enterprises providing end to end IT solution which delivers tailored solutions…”

Source: company website · checked Sep 6, 2026
4Partial evidenceScoresby, AustraliaHQ checked Sep 6, 20261,001-5,000495 contacts →

“At Airmaster, our goal is to lead the way in integrated building services, combining HVAC & R, building automation, electrical, and fire systems to create smart buildings that are…”

Source: company website · checked Sep 6, 2026
5Partial evidenceSydney, AustraliaHQ checked Sep 6, 2026201-500239 contacts →

“Welcome to Pro AV Solutions, Australia's leading AV systems integrator and workplace technology provider.”

Source: company website · checked Sep 6, 2026
6Indirect evidenceMelbourne, AustraliaHQ checked Sep 6, 202651-200215 contacts →

“Unico is an Australian privately owned and operated technology services company making technology innovation simple.”

Source: company website · checked Sep 6, 2026
7Partial evidenceArundel, AustraliaHQ checked Sep 6, 2026n/a166 contacts →

“ONGC Systems provides businesses with comprehensive IT services, that automate and streamline operations, reduce risk and increase stability while lowering the cost of system…”

Source: company website · checked Sep 6, 2026
8Indirect evidenceSouth Yarra, AustraliaHQ checked Sep 6, 2026201-500165 contacts →

“SICE is a leading multinational company that integrates technologies for public infrastructure management.”

Source: company website · checked Sep 6, 2026
9Indirect evidenceSouthbank, AustraliaHQ checked Sep 6, 202651-200156 contacts →

“Cube Networks are experts in Digital Infrastructure with strong foundations in Networks and Security, who pride ourselves on simplified solutions for complex, large-scale…”

Source: company website · checked Sep 6, 2026
10Indirect evidenceScoresby, AustraliaHQ checked Sep 6, 202651-200147 contacts →

“Blue Connections IT is a leading Australian-owned provider of best-in-class IT solutions and managed services.”

Source: company website · checked Sep 6, 2026
11Indirect evidenceMulgrave, AustraliaHQ checked Sep 6, 202651-200129 contacts →

“As a leading information, communications and technology partner in Australia, we understand that having efficient and robust communications can mean the difference between success…”

Source: company website · checked Sep 6, 2026
12Indirect evidenceNorwest, AustraliaHQ checked Sep 6, 202651-200119 contacts →

“At Exigo Tech, we believe that technology should be simple, accessible, and a catalyst for business success.”

Source: company website · checked Sep 6, 2026
13Indirect evidenceWarabrook, AustraliaHQ checked Sep 6, 202651-200118 contacts →

“Diamond IT is an Australian technology partner supporting organisations since 1996 with solutions that improve business outcomes, reduce risk, and enable sustainable growth.”

Source: company website · checked Sep 6, 2026
14Strong evidenceLane Cove West, AustraliaHQ checked Sep 6, 202651-200115 contacts →

“Innovative Managed Services: Bridging Assets, Systems, and Security Welcome to Renew IT, your trusted partner in delivering comprehensive managed services, systems integration…”

Source: company website · checked Sep 6, 2026
15Indirect evidenceOsborne Park, AustraliaHQ checked Sep 6, 202651-200114 contacts →

“IT to smile about.”

Source: company website · checked Sep 6, 2026
16Indirect evidenceMelbourne, AustraliaHQ checked Sep 6, 202651-200113 contacts →

“Your Trusted Partner in Digital Transformation and Communications Technology 30 Years of Innovation And Expertise GQI has been a trusted advisor and professional services provider…”

Source: company website · checked Sep 6, 2026
17Strong evidencePort Melbourne, AustraliaHQ checked Sep 6, 2026201-50099 contacts →

“SYPAQ is an innovative engineering and systems integration company, committed to creating a world that works, awarded the Australian Financial Review's "Most Innovative Company"…”

Source: company website · checked Sep 6, 2026
18Indirect evidenceSydney, AustraliaHQ checked Sep 6, 202651-20097 contacts →

“Delivering mission-critical digital infrastructure.”

Source: company website · checked Sep 6, 2026
19Indirect evidenceSomersby, AustraliaHQ checked Sep 6, 2026501-1,00096 contacts →

“Crossmuller specialises in the design and development of world-class manufacturing facilities, which includes everything from design, construction, factory layout, through to…”

Source: company website · checked Sep 6, 2026
20Indirect evidenceNorwest, AustraliaHQ checked Sep 6, 202611-5096 contacts →

“Welcome to Platinum Technology.”

Source: company website · checked Sep 6, 2026
21Partial evidencePerth, AustraliaHQ checked Sep 6, 202651-20093 contacts →

“GTE Group is Perth's largest privately owned System Integrator/Electrical Engineering company.”

Source: company website · checked Sep 6, 2026
22Partial evidenceSydney, AustraliaHQ checked Sep 6, 202651-20092 contacts →

“Nexgen Investment Group is a leading hardware integration specialist with over 13 years’ experience in providing technology and solutions to improve the efficiency of businesses…”

Source: company website · checked Sep 6, 2026
23Partial evidenceMelbourne, AustraliaHQ checked Sep 6, 202651-20090 contacts →

“Corporate Initiatives (Ci) is a technology integration firm dedicated to the enhancement of user experiences through the application of technology in the built environment.”

Source: company website · checked Sep 6, 2026
24Indirect evidenceAdelaide, AustraliaHQ checked Sep 6, 202651-20085 contacts →

“For over 25 years we have been designing and implementing IT strategies that leverage technology to achieve business objectives for small businesses, through to enterprise…”

Source: company website · checked Sep 6, 2026
25Indirect evidenceSydney, AustraliaHQ checked Sep 6, 202651-20077 contacts →

“Quorum is a highly advanced and innovative professional and managed services provider that uses targeted IT solutions to suit the demands of the modern business environment.”

Source: company website · checked Sep 6, 2026

Showing 25 of 1,345 systems integration companies based in Australia

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 5,244 reachable decision-makers.

Free signup · no credit card

View the full list →

Systems integration companies based in Australia at a glance

As of Sep 6, 2026
4.2%Verified-email coverage
1.9%Mobile-number coverage
92.7Average contacts per company
1-10Median size (employees)
13.9%Largest-city concentration · Sydney
Sep 6, 2026Page data refreshed

Companies by employee count

1-10
790
11-50
426
51-200
98
201-500
11
501-1,000
7
1,001-5,000
8
5,001-10,000
1
10001+
1

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

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 systems integration 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 “systems integration 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 systems integration 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 systems integration 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, 5,244 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 6, 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 systems integration 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 systems integration companies are there based in Australia?

RevenueBase identified 1,345 systems integration 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?

Autônomo, headquartered in Wangara, tops this list with the largest team on record.

Which city has the most systems integration companies?

Sydney leads with 187 headquartered companies, followed by Melbourne (155) and Brisbane (68).

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 5,244 verified decision-maker contacts tracked across these 1,345 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 6, 2026.

Ready to reach these companies? Verified emails and direct dials for all 1,345 systems integration companies based in Australia. Start with a free account, no credit card.

Download this list →

Related lists

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.