Company lists · Data refreshed September 2026

Top 25 Outsource call center companies based in Australia

RevenueBase identified 86 outsource call center companies headquartered in Australia as of September 2026 and tracks 2,349 professional contacts across them, including 245 with verified work emails. Melbourne is the largest hub.

This list covers outsource call center 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 21, 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 21, 2026 86% judged on-target in blind review
86Companies
2,349Contacts tracked
245Verified emails
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The 25 largest outsource call center companies based in Australia

Ranked by team size
Top 25 of 86 outsource call center companies based in Australia, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to outsource call center 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
1Indirect evidenceMelbourne, AustraliaHQ checked Sep 21, 202610001+328 contacts →

Indirect evidence

“Formally known as Aegis Services Australia, since 2018, both Aegis & Startek have integrated into a unified global brand as Startek.”

Source: RevenueBase Database · checked Sep 21, 2026
2Partial evidenceWheelers Hill, AustraliaHQ checked Sep 21, 202651-200196 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 21, 2026
3Strong evidenceMelbourne, AustraliaHQ checked Sep 21, 2026201-500178 contacts →

Strong evidence

“Acquire Asia Pacific's professional services are categorised into three major areas; contact centre or call centre (BPO), back office operations and performance based marketing.”

Source: RevenueBase Database · checked Sep 21, 2026
4Indirect evidenceSurry Hills, AustraliaHQ checked Sep 21, 2026501-1,000132 contacts →

Indirect evidence

“Unity4 helps organisations have better conversations, and get better outcomes.”

Source: RevenueBase Database · checked Sep 21, 2026
5Partial evidenceMelbourne, AustraliaHQ checked Sep 21, 20265,001-10,000107 contacts →

Partial evidence

“Acquire BPO is an award-winning, global business outsourcer with 14 locations across Australia, the Dominican Republic, the Philippines and the United States.”

Source: RevenueBase Database · checked Sep 21, 2026
6Partial evidenceDocklands, AustraliaHQ checked Sep 21, 202611-5060 contacts →

Partial evidence

“Symbios is an Australian-owned outsourcing business specialised in Lead Generation and Outbound Sales.”

Source: RevenueBase Database · checked Sep 21, 2026
7Partial evidenceSydney, AustraliaHQ checked Sep 21, 2026501-1,00054 contacts →

Partial evidence

“As part of Telekomunikasi Indonesia International (Telin) Group, OneContact (formally known as Contact Centres Australia Pty Ltd) delivers over 20 million conversations in…”

Source: RevenueBase Database · checked Sep 21, 2026
8Indirect evidenceMildura, AustraliaHQ checked Sep 21, 202611-5053 contacts →

Indirect evidence

“We are an Australian Owned and Managed BPO Company with Over 20 years’ experience until the Company decided to engage with Offshoring.”

Source: RevenueBase Database · checked Sep 21, 2026
9Indirect evidenceSydney, AustraliaHQ checked Sep 21, 2026201-50049 contacts →

Indirect evidence

“At 4Mile, our business is growing your business, and we’ve been succeeding since 2015 by doing just that… We provide a wide range of marketing, finance, and customer service…”

Source: RevenueBase Database · checked Sep 21, 2026
10Partial evidenceNorth Melbourne, AustraliaHQ checked Sep 21, 20261,001-5,00048 contacts →

Partial evidence

“Chameleon Customer Contact, an Australian-owned, customer contact and outsourcing specialist, established in 2011 by a group of experienced direct sales, merchandising and…”

Source: RevenueBase Database · checked Sep 21, 2026
11Indirect evidenceSt Leonards, AustraliaHQ checked Sep 21, 202651-20033 contacts →

Indirect evidence

“If your sales pipeline needs filling, your customer base needs protecting or your team simply doesn't have the capacity to handle every conversation - that's where Forrest Contact…”

Source: RevenueBase Database · checked Sep 21, 2026
12Indirect evidenceHeidelberg West, AustraliaHQ checked Sep 21, 202651-20027 contacts →

Indirect evidence

“At TMC, we don’t just supply services.”

Source: RevenueBase Database · checked Sep 21, 2026
13Partial evidenceDerrimut, AustraliaHQ checked Sep 21, 202651-20026 contacts →

Partial evidence

“Globalsync is a leading ISO certified Business Process Outsourcing service provider that caters to businesses around the world.”

Source: RevenueBase Database · checked Sep 21, 2026
14Partial evidenceMelbourne, AustraliaHQ checked Sep 21, 202611-5024 contacts →

Partial evidence

“We provide top-notch business outsourcing/offshoring services, helping companies streamline operations and boost efficiency.”

Source: RevenueBase Database · checked Sep 21, 2026
15Partial evidenceAdelaide, AustraliaHQ checked Sep 21, 20261-1022 contacts →

Partial evidence

“Contact 121 is a dynamic provider of flexible, affordable full-service, multi-media contact and business process outsourcing (BPO) solutions.”

Source: RevenueBase Database · checked Sep 21, 2026
16Partial evidenceMelbourne, AustraliaHQ checked Sep 21, 202611-5021 contacts →

Partial evidence

“G4ce is a world-class business process outsourcing services provider based in Australia with over 12 years of experience in providing top-notch outsourcing services for businesses…”

Source: RevenueBase Database · checked Sep 21, 2026
17Indirect evidenceBrisbane, AustraliaHQ checked Sep 21, 202651-20015 contacts →

Indirect evidence

“Established in 2008, and part of the j2 Global group of companies (NASDAQ:JCOM), Fonebox is Australia’s leading provider of inbound telecommunications & voice-technology solutions…”

Source: RevenueBase Database · checked Sep 21, 2026
18Partial evidenceBurwood, AustraliaHQ checked Sep 21, 202611-5015 contacts →

Partial evidence

Outsourcing Alliance is an Australian-owned outsourcing and business solutions company with over 20 years of industry expertise in offshore staffing, workforce management, and…”

Source: RevenueBase Database · checked Sep 21, 2026
19Indirect evidenceMelbourne, AustraliaHQ checked Sep 21, 202611-5011 contacts →

Indirect evidence

“Positive Life Group is your trusted partner in lead generation and sales.”

Source: RevenueBase Database · checked Sep 21, 2026
20Indirect evidenceDocklands, AustraliaHQ checked Sep 21, 202611-5010 contacts →

Indirect evidence

“Inspired to make customer service better!”

Source: RevenueBase Database · checked Sep 21, 2026
21Strong evidenceHoddle Street, AustraliaHQ checked Sep 21, 202651-2007 contacts →

Strong evidence

“The BPO Group is specialized in the following services- Admin Support - Customer Support (includes chat support, email support, call centre or complaints management)- Marketing…”

Source: RevenueBase Database · checked Sep 21, 2026
22Partial evidenceSydney, AustraliaHQ checked Sep 21, 202611-505 contacts →

Partial evidence

“At True Potential Sales we provide Sales outsourcing and customer care to help you bring in and retain more business.”

Source: RevenueBase Database · checked Sep 21, 2026
23Partial evidenceMelbourne, AustraliaHQ checked Sep 21, 202611-505 contacts →

Partial evidence

“Virtual Customer Contact Centre Through our 100% virtual business processes, innovative technologies and virtual workforce experience, we offer clients a solution proven to…”

Source: RevenueBase Database · checked Sep 21, 2026
24Strong evidenceNorth Geelong, AustraliaHQ checked Sep 21, 202611-504 contacts →

Strong evidence

Call Assist is a leading outbound and inbound Call Centre, Recruitment Consultancy and Virtual Administration service providing core business support to organisations looking for…”

Source: RevenueBase Database · checked Sep 21, 2026
25Partial evidenceSydney, AustraliaHQ checked Sep 21, 20261-102 contacts →

Partial evidence

“Who We Are Call My Leads is your all-Australian call team, partnering with businesses nationwide to deliver fast lead response, smart re-engagement, and qualified meetings with…”

Source: RevenueBase Database · checked Sep 21, 2026

Showing 25 of 86 outsource call center companies based in Australia

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Outsource call center companies based in Australia at a glance

As of Sep 21, 2026
10.4%Verified-email coverage
27.3Average contacts per company
11-50Median size (employees)
18.6%Largest-city concentration · Melbourne
Sep 21, 2026Page data refreshed

Companies by employee count

1-10
16
11-50
35
51-200
21
201-500
6
501-1,000
3
1,001-5,000
2
5,001-10,000
1
10001+
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 86 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 outsource call center 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 “outsource call center 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 outsource call center 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 outsource call center 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, 245 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 21, 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 outsource call center 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 outsource call center companies are there based in Australia?

RevenueBase identified 86 outsource call center 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?

Aegis Services Australia, headquartered in Melbourne, tops this list with the largest team on record.

Which city has the most outsource call center companies?

Melbourne leads with 16 headquartered companies, followed by Sydney (11) and Brisbane (5).

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 245 verified decision-maker contacts tracked across these 86 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 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 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.