Company lists · Data refreshed September 2026

Top 13 Multi-sector enterprises based in Australia

RevenueBase identified 56 multi-sector enterprises headquartered in Australia as of September 2026 and tracks 658 professional contacts across them, including 326 with verified work emails and 28 with mobile numbers. Sydney is the largest hub.

This list covers multi-sector enterprises 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 5, 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 5, 2026 86% judged on-target in blind review
56Companies
658Contacts tracked
326Verified emails
28Mobile numbers
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The 13 largest multi-sector enterprises based in Australia

Ranked by team size
Top 13 of 56 multi-sector enterprises based in Australia, ranked by team size, largest first. Data refreshed Sep 5, 2026. RevenueBase Smart Search rates how each company's information relates to multi-sector enterprises: 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
1Indirect evidenceChatswood, AustraliaHQ checked Sep 5, 2026201-500436 contacts →

Indirect evidence

“BSA has evolved to become one of Australia’s leading technical services companies, providing rich and adapted solutions that are both flexible in delivery and a testament to many…”

Source: RevenueBase Database · checked Sep 5, 2026
2Indirect evidenceMelbourne, AustraliaHQ checked Sep 5, 202611-5054 contacts →

Indirect evidence

“IMA Management & Technology is a privately owned Australian company renowned for delivering the highest quality IT and business management services and solutions for our blue-chip…”

Source: RevenueBase Database · checked Sep 5, 2026
3Indirect evidenceCorbould Park, AustraliaHQ checked Sep 5, 202651-20021 contacts →

Indirect evidence

“ProStar Management is pioneering the way integrated management services are performed.”

Source: RevenueBase Database · checked Sep 5, 2026
4Indirect evidenceKelvin Grove, AustraliaHQ checked Sep 5, 202611-5014 contacts →

Indirect evidence

“It’s pretty simple: we help you shine.”

Source: RevenueBase Database · checked Sep 5, 2026
5Indirect evidenceWayville, AustraliaHQ checked Sep 5, 202651-2005 contacts →

Indirect evidence

“H.U.”

Source: RevenueBase Database · checked Sep 5, 2026
6Indirect evidenceCoburg North, AustraliaHQ checked Sep 5, 20261-104 contacts →

Indirect evidence

“The Stretched Group is an independently owned group of businesses based in Melbourne, Victoria, with subsidiaries based in Italy, Belgium and Singapore.”

Source: RevenueBase Database · checked Sep 5, 2026
7Indirect evidenceMelbourne, AustraliaHQ checked Sep 5, 20261-104 contacts →

Indirect evidence

“NCI’s foundation was based on delivering Information Technology with a Strategic approach to business IT planning.”

Source: RevenueBase Database · checked Sep 5, 2026
8Indirect evidenceEight Mile Plains, AustraliaHQ checked Sep 5, 20261-102 contacts →

Indirect evidence

“Magnapath is a Management Consultancy which provides end to end business solutions and services for a large spectrum of clients through innovation, technology and collaboration.”

Source: RevenueBase Database · checked Sep 5, 2026
9Strong evidenceDocklands, AustraliaHQ checked Sep 5, 202651-2002 contacts →

Strong evidence

“Carlton Group International is a dynamic, multi-sector enterprise committed to driving impactful investment and operational excellence across Real Estate, Corporate Consulting…”

Source: RevenueBase Database · checked Sep 5, 2026
10Indirect evidenceBella Vista, AustraliaHQ checked Sep 5, 20261-102 contacts →

Indirect evidence

“We at MTS specialise in assisting small to medium businesses in meeting the continuous changing environment that our clients face in making business and associated decisions.”

Source: RevenueBase Database · checked Sep 5, 2026
11Indirect evidenceMclaren Vale, AustraliaHQ checked Sep 5, 202611-501 contacts →

Indirect evidence

“Our businesses, and the people who work within them, are characterised by their willingness to set off on new adventures, embracing the journey and being somewhat whimsical of the…”

Source: RevenueBase Database · checked Sep 5, 2026
12Indirect evidenceBelrose, AustraliaHQ checked Sep 5, 202611-501 contacts →

Indirect evidence

“We do things differently at Elementary.”

Source: RevenueBase Database · checked Sep 5, 2026
13Indirect evidenceSumner, AustraliaHQ checked Sep 5, 202611-501 contacts →

Indirect evidence

“General Services Group serves as the dynamic corporate entity uniting several specialised companies, each bringing its unique expertise and capabilities to the table.”

Source: RevenueBase Database · checked Sep 5, 2026

Showing 13 of 56 multi-sector enterprises based in Australia

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Multi-sector enterprises based in Australia at a glance

As of Sep 5, 2026
49.5%Verified-email coverage
4.3%Mobile-number coverage
11.8Average contacts per company
1-10Median size (employees)
21.4%Largest-city concentration · Sydney
Sep 5, 2026Page data refreshed

Companies by employee count

1-10
30
11-50
13
51-200
9
201-500
2
501-1,000
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 multi-sector enterprises, 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 “multi-sector enterprises”. 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 multi-sector enterprises), 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 multi-sector enterprises, 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, 326 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.

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 multi-sector enterprises, 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 multi-sector enterprises are there based in Australia?

RevenueBase identified 56 multi-sector enterprises 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?

BSA Limited, headquartered in Chatswood, tops this list with the largest team on record.

Which city has the most multi-sector enterprises?

Sydney leads with 12 headquartered companies, followed by Melbourne (8) and Perth (3).

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 326 verified decision-maker contacts tracked across these 56 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.

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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.