Company lists · Data refreshed September 2026

Top 25 Outsourced admin services based in Australia

RevenueBase identified 698 company matches for outsourced admin services associated with Australia as of September 2026 and tracks 4,799 professional contacts across them, including 1,215 with verified work emails. Sydney is the largest hub.

This list covers company matches for outsourced admin services associated with Australia, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 21, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Sep 21, 2026 How this list was built
698Companies
4,799Contacts tracked
1,215Verified emails
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The 25 largest outsourced admin services based in Australia

Ranked by team size
Top 25 of 698 company matches for outsourced admin services based in Australia, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 21, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchSydney, AustraliaHQ recorded Sep 21, 2026501-1,000349 contacts →

Exact match

“hammerjack is an Australian and Philippine-owned offshore outsourcing and Knowledge Process Outsourcing (KPO) provider.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
2Exact matchThe Rocks, AustraliaHQ recorded Sep 21, 2026201-500304 contacts →

Exact match

“DBA is a premium professional services outsourcing company based in Australia and the Philippines.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
3Exact matchWheelers Hill, AustraliaHQ recorded Sep 21, 202651-200196 contacts →

Exact match

“Looking for a reliable outsourcing partner that can help your business grow?”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
4Exact matchSydney, AustraliaHQ recorded Sep 21, 202651-200125 contacts →

Exact match

“Proowrx is an Australian-owned outsourcing partner trusted by mortgage brokers and accountants across Australia.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
5Exact matchMount Gambier, AustraliaHQ recorded Sep 21, 202651-200106 contacts →

Exact match

“With a global presence and a passion for helping executives succeed,#TeamZembr is the talented team of virtual professionals with the proven toolbox you need to grow your business.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
6Exact matchMelbourne, AustraliaHQ recorded Sep 21, 202651-20086 contacts →

Exact match

“Atlas Outsourcing offers a better way of doing administration to help businesses reduce costs, optimise resources, and save valuable time.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
7Exact matchElizabeth Bay, AustraliaHQ recorded Sep 21, 202651-20072 contacts →

Exact match

“Universal Property Systems is an Australian real estate outsourcing company, providing top-of-the-line Property Management, Sales & Marketing, and Finance and Data Migration…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
8Exact matchParramatta, AustraliaHQ recorded Sep 21, 2026201-50071 contacts →

Exact match

“When we took on the mission to help drive the success of the Australian Financial Services industry, we knew it would take something special.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
9Exact matchSt. Kilda, AustraliaHQ recorded Sep 21, 2026201-50065 contacts →

Exact match

“Founded on the idea of revolutionizing business operations with the best possible outsourcing systems for an inexpensive rate, Onehalf allows big businesses and even small…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
10Exact matchSydney, AustraliaHQ recorded Sep 21, 202651-20061 contacts →

Exact match

“We help businesses reduce costs, boost efficiency, and scale faster, without the HR burden.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
11Exact matchNorth Sydney, AustraliaHQ recorded Sep 21, 202651-20052 contacts →

Exact match

“Dexterous provides a modern and highly effective alternative to building and running your own finance department.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
12Exact matchPerth, AustraliaHQ recorded Sep 21, 202651-20051 contacts →

Exact match

“The Outsource Pro (TOP) provides managed offshore professionals and technical support teams to Australian businesses.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
13Exact matchMelbourne, AustraliaHQ recorded Sep 21, 202651-20042 contacts →

Exact match

“Strategic Business Alliance (SBA) is a leading provider of integrated outsourcing services.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
14Exact matchAdelaide, AustraliaHQ recorded Sep 21, 202611-5031 contacts →

Exact match

“Lucent Advisory delivers a fully managed, outsourced business support function – spanning bookkeeping, accounting, tax, payroll, HR, and CFO and business advisory – operating as…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
15Exact matchGosford, AustraliaHQ recorded Sep 21, 202651-20029 contacts →

Exact match

“Kwanii specialises in crafting customised outsourcing solutions to cater to the unique needs of small, medium, and large businesses.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
16Exact matchBella Vista, AustraliaHQ recorded Sep 21, 202611-5029 contacts →

Exact match

“Collab Accounting is a Sydney based accounting and advisory firm helping Australian businesses simplify compliance, improve profitability, and achieve sustainable growth through…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
17Exact matchBrisbane City, AustraliaHQ recorded Sep 21, 20261-1028 contacts →

Exact match

“Founded in 2018, Acura is a streamlined, low-overhead business support service.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
18Exact matchMelbourne, AustraliaHQ recorded Sep 21, 20261-1028 contacts →

Exact match

“CForce is a business that supports small to medium businesses worldwide through the provision of low-cost professional administrative staff, digital marketers and appointment…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
19Exact matchMelbourne, AustraliaHQ recorded Sep 21, 202611-5026 contacts →

Exact match

“Outsourced Experts is a world-class outsourcing collective built by brokers for brokers and exclusively servicing clients’ needs within Australia.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
20Exact matchMilton, AustraliaHQ recorded Sep 21, 202611-5025 contacts →

Exact match

“Priority1 Group is a trusted outsourcing partner helping Australian businesses streamline operations, reduce overheads, and scale with confidence.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
21Exact matchSydney, AustraliaHQ recorded Sep 21, 2026201-50024 contacts →

Exact match

“TalentBridge is an Australian based company which provides offshore contractors that are located in the Philippines.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
22Exact matchBarangaroo, AustraliaHQ recorded Sep 21, 202611-5024 contacts →

Exact match

“We’ve re-imagined outsourcing to help our clients respond to local and global market demand and ensure growth and sustainability in their business.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
23Exact matchHawthorn, AustraliaHQ recorded Sep 21, 202611-5022 contacts →

Exact match

“We are your innovative operational solutions partner for your growing business.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
24Exact matchMelbourne, AustraliaHQ recorded Sep 21, 202611-5022 contacts →

Exact match

“Supporting Accountants And Bookkeepers”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
25Exact matchAustraliaHQ recorded Sep 21, 202611-5021 contacts →

Exact match

“Aventis is an initiative of a set of enthusiastic individuals who has extensive experience in outsourcing and accounting work.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase

Showing 25 of 698 outsourced admin services based in Australia

See the full list, filter by size, metro and specialty, and access 1,215 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Outsourced admin services based in Australia at a glance

As of Sep 21, 2026
25.3%Verified-email coverage
6.9Average contacts per company
1-10Median size (employees)
13.6%Largest-city concentration · Sydney
Sep 21, 2026Page data refreshed

Companies by employee count

1-10
516
11-50
129
51-200
40
201-500
10
501-1,000
1
1,001-5,000
1

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 698 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with Australia whose business descriptions match “outsourced admin services” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 1,215 professional contacts with verified work emails across the full matched dataset. 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 21, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “outsourced admin services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many outsourced admin services are there based in Australia?

RevenueBase identified 698 company matches for outsourced admin services associated with Australia as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Hammerjack tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most outsourced admin services?

Sydney leads with 95 company records, followed by Melbourne (92) and Perth (52).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 1,215 professional contacts with verified work emails tracked across these 698 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 21, 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 SmartSearch, 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.