Company lists · Data refreshed September 2026

Top 25 Calling companies based in Australia

Name: Calling companies based in Australia
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 225 companies tracked

RevenueBase identified 225 calling companies headquartered in Australia as of September 2026 and tracks 1,660 professional contacts across them, including 604 with verified work emails. Sydney is the largest hub.

This list covers calling 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

225Companies

1,660Contacts tracked

604Verified emails

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The 25 largest calling companies based in Australia

Ranked by team size

Top 25 of 225 calling 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 calling 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	VONEX	Indirect evidence	Brisbane, AustraliaHQ checked Sep 21, 2026	51-200	79 contacts →
	Indirect evidence “Vonex is a renowned ASX-listed telecommunications company championing connectivity for thousands of businesses across Australia.” Source: RevenueBase Database · checked Sep 21, 2026
2	Telair	Indirect evidence	Murarrie, AustraliaHQ checked Sep 21, 2026	51-200	60 contacts →
	Indirect evidence “Telair is a leading Australian supplier of data services and cloud based Unified Communications solutions.” Source: RevenueBase Database · checked Sep 21, 2026
3	Next Telecom	Indirect evidence	Sydney, AustraliaHQ checked Sep 21, 2026	51-200	46 contacts →
	Indirect evidence “Complete Telecommunications & Managed Services for Mid-Market & Enterprise Business.” Source: RevenueBase Database · checked Sep 21, 2026
4	Over The Wire	Indirect evidence	Brisbane, AustraliaHQ checked Sep 21, 2026	201-500	44 contacts →
	Indirect evidence “Over the Wire (ASX:OTW) is a Telecommunications and IT solution provider, specialising in converged voice and data networks, data centres, and hosted infrastructure solutions for…” Source: RevenueBase Database · checked Sep 21, 2026
5	Arrow Voice & Data	Indirect evidence	Sydney, AustraliaHQ checked Sep 21, 2026	11-50	41 contacts →
	Indirect evidence “Arrow Voice & Data are your Australian specialists in business communications and IT management.” Source: RevenueBase Database · checked Sep 21, 2026
6	Clarus Telecom	Indirect evidence	Melbourne, AustraliaHQ checked Sep 21, 2026	201-500	36 contacts →
	Indirect evidence “All you one-man-army, the farmers, the restaurant owners, the mechanics, the hairdressers, the bookkeepers, the plumbers, the start-up, the gardeners, the butchers, the bakers…” Source: RevenueBase Database · checked Sep 21, 2026
7	XBC Business Technology	Indirect evidence	Gold Coast, AustraliaHQ checked Sep 21, 2026	11-50	35 contacts →
	Indirect evidence “When it comes to your business, you want support from someone you can trust.” Source: RevenueBase Database · checked Sep 21, 2026
8	VIS Global PTY LTD	Indirect evidence	Melbourne, AustraliaHQ checked Sep 21, 2026	11-50	35 contacts →
	Indirect evidence “VIS Global Pty Ltd is a leading provider of enterprise communication and customer experience management solutions.” Source: RevenueBase Database · checked Sep 21, 2026
9	Alltel Australia	Indirect evidence	Wheelers Hill, AustraliaHQ checked Sep 21, 2026	11-50	33 contacts →
	Indirect evidence “Alltel Australia empowers businesses with telecommunications technology designed to help them thrive amid a changing communication environment.” Source: RevenueBase Database · checked Sep 21, 2026
10	Comscentre	Indirect evidence	Brisbane, AustraliaHQ checked Sep 21, 2026	51-200	32 contacts →
	Indirect evidence “Comscentre is an Australian owned business communications service provider offering enterprise grade voice, data, video, LAN and WAN managed communications services.” Source: RevenueBase Database · checked Sep 21, 2026
11	Switch	Indirect evidence	Melbourne, AustraliaHQ checked Sep 21, 2026	51-200	26 contacts →
	Indirect evidence “Switch isn't just any telco.” Source: RevenueBase Database · checked Sep 21, 2026
12	BTB	Indirect evidence	South Melbourne, AustraliaHQ checked Sep 21, 2026	201-500	26 contacts →
	Indirect evidence “At BTB, we simplify the complexities of telecommunications, empowering businesses to deliver exceptional telco service and innovation.” Source: RevenueBase Database · checked Sep 21, 2026
13	Databox Solutions	Indirect evidence	Loganholme, AustraliaHQ checked Sep 21, 2026	11-50	23 contacts →
	Indirect evidence “Databox Solutions is an Australian-owned Managed IT and telecommunications provider, helping businesses simplify, secure and improve their IT, phone systems and communications.” Source: RevenueBase Database · checked Sep 21, 2026
14	Maxotel	Indirect evidence	Harristown, AustraliaHQ checked Sep 21, 2026	201-500	17 contacts →
	Indirect evidence “MaxoTel is Australia's go-to VoIP provider, offering best-in-class Hosted PBX & SIP Trunking solutions.” Source: RevenueBase Database · checked Sep 21, 2026
15	Australian IT Group	Indirect evidence	Mount Waverley, AustraliaHQ checked Sep 21, 2026	11-50	16 contacts →
	Indirect evidence “Based in Melbourne, we are experts in identifying and delivering flexible communication solutions that scale and adapt to your business demands, empowering your business to do…” Source: RevenueBase Database · checked Sep 21, 2026
16	Aatrox Communications	Indirect evidence	Melbourne, AustraliaHQ checked Sep 21, 2026	1-10	16 contacts →
	Indirect evidence “Aatrox Communications is a cost-effective, full service provider of wholesale voice solutions to IT service providers around Australia and internationally.” Source: RevenueBase Database · checked Sep 21, 2026
17	Fonebox Australia	Indirect evidence	Brisbane, AustraliaHQ checked Sep 21, 2026	51-200	15 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
18	Bunnji	Indirect evidence	Kew, AustraliaHQ checked Sep 21, 2026	51-200	15 contacts →
	Indirect evidence “Whether you are running a small business or operating globally, Bunnji can help you with your business telecommunications and IT requirements.” Source: RevenueBase Database · checked Sep 21, 2026
19	Broadland Solutions	Indirect evidence	Macquarie Park, AustraliaHQ checked Sep 21, 2026	51-200	15 contacts →
	Indirect evidence “Broadland Solutions is a leading provider of telecommunication products and services.” Source: RevenueBase Database · checked Sep 21, 2026
20	Business Telecom Australia	Indirect evidence	Parramatta, AustraliaHQ checked Sep 21, 2026	11-50	14 contacts →
	Indirect evidence “Business Telecom, an Australian company dedicated to providing hardware and service solutions.” Source: RevenueBase Database · checked Sep 21, 2026
21	Netvault	Indirect evidence	Brisbane, AustraliaHQ checked Sep 21, 2026	11-50	14 contacts →
	Indirect evidence “NetVault is a specialist telecommunications services provider focusing on three key areas for businesses: internet, telephony and cloud.” Source: RevenueBase Database · checked Sep 21, 2026
22	QCS Group	Indirect evidence	Coopers Plains, AustraliaHQ checked Sep 21, 2026	11-50	13 contacts →
	Indirect evidence “QCS Group is a dynamic customer and service-focused business based in Brisbane servicing South East Queensland.” Source: RevenueBase Database · checked Sep 21, 2026
23	Localcom	Indirect evidence	Varsity Lakes, AustraliaHQ checked Sep 21, 2026	11-50	13 contacts →
	Indirect evidence “LocalCom is an Australian owned business (Australia's all in one Telco platform), with a vision of bringing professional, cost effective cloud based call center, VoIP and Data…” Source: RevenueBase Database · checked Sep 21, 2026
24	Commsys Australia PTY Limited	Indirect evidence	Sydney, AustraliaHQ checked Sep 21, 2026	11-50	11 contacts →
	Indirect evidence “CommSys Australia was created to be your Business Communications and IT Systems Provider.” Source: RevenueBase Database · checked Sep 21, 2026
25	NTS Business Communications	Indirect evidence	Rockdale, AustraliaHQ checked Sep 21, 2026	11-50	11 contacts →
	Indirect evidence “NTS Business Communications is a Telstra Business & Enterprise Solutions Centre with 15 staff, established in 2004.” Source: RevenueBase Database · checked Sep 21, 2026

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: calling companies. 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 calling companies.
Partial evidence: Its own public description names part of calling companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name calling companies. 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 225 calling companies based in Australia

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Calling companies based in Australia at a glance

As of Sep 21, 2026

36.4%Verified-email coverage

7.4Average contacts per company

11-50Median size (employees)

11.6%Largest-city concentration · Sydney

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

104

11-50

51-200

201-500

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 225 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 calling 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 “calling 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 calling 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 calling 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, 604 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.

Calling companies by metro

Calling companies in Sydney26

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 calling 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 calling companies are there based in Australia?

RevenueBase identified 225 calling 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?

VONEX, headquartered in Brisbane, tops this list with the largest team on record.

Which city has the most calling companies?

Sydney leads with 26 headquartered companies, followed by Melbourne (18) and Brisbane (10).

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 604 verified decision-maker contacts tracked across these 225 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.