Company lists · Data refreshed September 2026

Top 25 IT professional services companies based in Melbourne, Australia

Name: IT professional services companies based in Melbourne, Australia
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 27, 2026 368 companies tracked

RevenueBase identified 368 IT professional services companies headquartered in Melbourne, Australia as of September 2026 and tracks 4,142 professional contacts across them, including 1,045 with verified work emails. Across Australia, Sydney is the largest hub for this category (389 companies); Melbourne follows with 368.

This list covers IT professional services companies headquartered in Melbourne, 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 27, 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 27, 2026 86% judged on-target in blind review

368Companies

4,142Contacts tracked

1,045Verified emails

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The 25 largest IT professional services companies based in Melbourne, Australia

Ranked by team size

Top 25 of 368 IT professional services companies based in Melbourne, Australia, ranked by team size, largest first. Data refreshed Sep 27, 2026. RevenueBase Smart Search rates how each company's information relates to IT professional services 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	Axiom Technologies	Partial evidence	Melbourne, AustraliaHQ checked Sep 27, 2026	1,001-5,000	552 contacts →
	Partial evidence “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: RevenueBase Database · checked Sep 27, 2026
2	INK IT Solutions	Indirect evidence	Melbourne, AustraliaHQ checked Sep 27, 2026	201-500	331 contacts →
	Indirect evidence “Most SAP partners sell implementations.” Source: RevenueBase Database · checked Sep 27, 2026
3	Terra Firma Business Consulting	Indirect evidence	Melbourne, AustraliaHQ checked Sep 27, 2026	201-500	235 contacts →
	Indirect evidence “At Terra Firma, we understand that success is all about sustaining long-term relationships.” Source: RevenueBase Database · checked Sep 27, 2026
4	UNICO	Indirect evidence	Melbourne, AustraliaHQ checked Sep 27, 2026	51-200	215 contacts →
	Indirect evidence “Unico is an Australian privately owned and operated technology services company making technology innovation simple.” Source: RevenueBase Database · checked Sep 27, 2026
5	Seisma	Indirect evidence	Melbourne, AustraliaHQ checked Sep 27, 2026	501-1,000	185 contacts →
	Indirect evidence “We make technology work for people, not the other way around.” Source: RevenueBase Database · checked Sep 27, 2026
6	Blueapache	Indirect evidence	Melbourne, AustraliaHQ checked Sep 27, 2026	201-500	184 contacts →
	Indirect evidence “Since 1998, blueAPACHE has been helping organisations access technology to their business advantage.” Source: RevenueBase Database · checked Sep 27, 2026
7	ADAPS	Partial evidence	Melbourne, AustraliaHQ checked Sep 27, 2026	201-500	156 contacts →
	Partial evidence “Adaps is Australia’s oldest privately owned IT services company.” Source: RevenueBase Database · checked Sep 27, 2026
8	Gibson Quai International GQI	Partial evidence	Melbourne, AustraliaHQ checked Sep 27, 2026	51-200	113 contacts →
	Partial evidence “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: RevenueBase Database · checked Sep 27, 2026
9	CTM	Indirect evidence	Melbourne, AustraliaHQ checked Sep 27, 2026	51-200	84 contacts →
	Indirect evidence “Experience CTM.” Source: RevenueBase Database · checked Sep 27, 2026
10	Fenwick	Indirect evidence	Melbourne, AustraliaHQ checked Sep 27, 2026	51-200	58 contacts →
	Indirect evidence “Established in 1976, Fenwick has had over forty years to refine its culture; build relationships with its staff, clients and suppliers; develop its methodologies for the sale and…” Source: RevenueBase Database · checked Sep 27, 2026
11	Onsys Technologies	Partial evidence	Melbourne, AustraliaHQ checked Sep 27, 2026	11-50	58 contacts →
	Partial evidence “Onsys Technologies is a Melbourne-based IT services and consulting company delivering intelligent, scalable, and cost-effective technology solutions to businesses across Australia…” Source: RevenueBase Database · checked Sep 27, 2026
12	IMA Management And Technology	Partial evidence	Melbourne, AustraliaHQ checked Sep 27, 2026	11-50	54 contacts →
	Partial 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 27, 2026
13	Star21	Indirect evidence	Melbourne, AustraliaHQ checked Sep 27, 2026	51-200	52 contacts →
	Indirect evidence “Star21 - Discover the Difference Star21 Pty Ltd is an Australian ICT solutions provider and Telstra Platinum Partner specialising in designing, delivering, and managing end-to-end…” Source: RevenueBase Database · checked Sep 27, 2026
14	Source Central Partners	Indirect evidence	Melbourne, AustraliaHQ checked Sep 27, 2026	51-200	50 contacts →
	Indirect evidence “Source Central is an end to end technology company that is able to understand your business requirements and Build, Operate and Manage the solution delivery.” Source: RevenueBase Database · checked Sep 27, 2026
15	GPK Group PTY LTD	Indirect evidence	Melbourne, AustraliaHQ checked Sep 27, 2026	51-200	42 contacts →
	Indirect evidence “Technology is changing, accelerating and fragmenting at a pace unparalleled in human history.” Source: RevenueBase Database · checked Sep 27, 2026
16	Visits	Indirect evidence	Melbourne, AustraliaHQ checked Sep 27, 2026	51-200	38 contacts →
	Indirect evidence “VISITS empowers business through technology.” Source: RevenueBase Database · checked Sep 27, 2026
17	Blubiz Solutions	Indirect evidence	Melbourne, AustraliaHQ checked Sep 27, 2026	11-50	28 contacts →
	Indirect evidence “Welcome to BluBiz Solutions, an award-winning ICT Solutions and Managed Services provider with multi-domain expertise in Enterprise Networking, Cybersecurity, Cloud…” Source: RevenueBase Database · checked Sep 27, 2026
18	Cynosure Consulting Group PTY LTD	Partial evidence	Melbourne, AustraliaHQ checked Sep 27, 2026	51-200	28 contacts →
	Partial evidence “Created through a highly experienced team of experts joining forces, Cynosure Consulting Group is an Australian-based IT consulting business offering a wide range of services to…” Source: RevenueBase Database · checked Sep 27, 2026
19	Onel Consulting	Partial evidence	Melbourne, AustraliaHQ checked Sep 27, 2026	11-50	25 contacts →
	Partial evidence “Onel works with you to deliver core IT infrastructure solutions that enables your business to operate effectively today and into the future.” Source: RevenueBase Database · checked Sep 27, 2026
20	Harrison-Kern Premium Business Support	Indirect evidence	Melbourne, AustraliaHQ checked Sep 27, 2026	11-50	25 contacts →
	Indirect evidence “We are a Melbourne based company that provides local solutions on global systems for businesses worldwide.” Source: RevenueBase Database · checked Sep 27, 2026
21	C9 Group	Partial evidence	Melbourne, AustraliaHQ checked Sep 27, 2026	11-50	24 contacts →
	Partial evidence “C9 GROUP is a Nationwide Managed AI, IT, Cyber Security, Telco, Digital Signage & Remote Workforce Services Provider for modern businesses, delivering a fully integrated approach…” Source: RevenueBase Database · checked Sep 27, 2026
22	Csw-It	Partial evidence	Melbourne, AustraliaHQ checked Sep 27, 2026	11-50	23 contacts →
	Partial evidence “CSW-IT is a fast-paced, dynamic business that prides itself on building and nurturing business relationships with valued partners and customers alike.” Source: RevenueBase Database · checked Sep 27, 2026
23	ARZO	Indirect evidence	Melbourne, AustraliaHQ checked Sep 27, 2026	11-50	22 contacts →
	Indirect evidence “ARZO is a boutique Consulting and Managed Services provider helping businesses unlock the full value of their technology investments.” Source: RevenueBase Database · checked Sep 27, 2026
24	Intellect Information Technology	Partial evidence	Melbourne, AustraliaHQ checked Sep 27, 2026	11-50	22 contacts →
	Partial evidence “Intellect IT provides technology solutions to enable your business to grow.” Source: RevenueBase Database · checked Sep 27, 2026
25	PTP Group	Partial evidence	Melbourne, AustraliaHQ checked Sep 27, 2026	11-50	20 contacts →
	Partial evidence “PTP is an Australian-owned delivery partner specialising in complex transformation across industries including construction, utilities, higher education and enterprise IT.” Source: RevenueBase Database · checked Sep 27, 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: IT professional services 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 IT professional services companies.
Partial evidence: Its own public description names part of IT professional services companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name IT professional services 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 368 IT professional services companies based in Melbourne, Australia

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IT professional services companies based in Melbourne, Australia at a glance

As of Sep 27, 2026

25.2%Verified-email coverage

11.3Average contacts per company

1-10Median size (employees)

Sep 27, 2026Page data refreshed

Companies by employee count

1-10

203

11-50

120

51-200

201-500

501-1,000

1,001-5,000

Email recency for this list is measured across the whole Australia list rather than for Melbourne, so it is reported there. Company counts and contact totals on this page are exact for Melbourne, over 368 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 IT professional services 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 Melbourne, Australia whose own description of what they do matches “IT professional services 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 IT professional services 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 IT professional services companies, and records with no verified work email. Companies headquartered outside Melbourne 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, 1,045 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 27, 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.

IT professional services companies by metro in Australia

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 IT professional services 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 IT professional services companies are there based in Melbourne, Australia?

RevenueBase identified 368 IT professional services companies headquartered in Melbourne, 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?

Axiom Technologies, headquartered in Melbourne, tops this list with the largest team on record.

Which city in Australia has the most IT professional services companies?

Sydney leads Australia with 389 headquartered companies, followed by Melbourne (368) and Brisbane (132).

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 1,045 verified decision-maker contacts tracked across these 368 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 27, 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.