Company lists · Data refreshed September 2026

Top 24 Custom software development consulting firms based in Australia

Name: Custom software development consulting firms based in Australia
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 24, 2026 3,307 companies tracked

RevenueBase identified 3,307 company matches for custom software development consulting firms associated with Australia as of September 2026 and tracks 25,169 professional contacts across them, including 7,320 with verified work emails and 1,373 with mobile numbers. Sydney is the largest hub.

This list covers company matches for custom software development consulting firms 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 24, 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 24, 2026 How this list was built

3,307Companies

25,169Contacts tracked

7,320Verified emails

1,373Mobile numbers

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The 24 largest custom software development consulting firms based in Australia

Ranked by team size

Top 24 of 3,307 company matches for custom software development consulting firms based in Australia, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 24, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	NRI Australia & NEW Zealand	Exact match	Sydney, AustraliaHQ recorded Sep 24, 2026	1,001-5,000	711 contacts →
	Exact match “As a trusted end-to-end digital partner, we design, build, and manage IT solutions that turn bold visions into reality and set new standards of excellence for our clients.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
2	BSA Limited	Exact match	Chatswood, AustraliaHQ recorded Sep 24, 2026	201-500	436 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
3	INK IT Solutions	Exact match	Melbourne, AustraliaHQ recorded Sep 24, 2026	201-500	331 contacts →
	Exact match “Most SAP partners sell implementations.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
4	DEK Technologies	Exact match	Mellbourne, AustraliaHQ recorded Sep 24, 2026	501-1,000	282 contacts →
	Exact match “DEK Technologies, a global, best in class provider of software and hardware development services to hi-tech industries, has joined forces with Endava to bring even more value for…” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
5	SSW	Exact match	Neutral Bay, AustraliaHQ recorded Sep 24, 2026	51-200	281 contacts →
	Exact match “SSW's Consulting Services have delivered best-of-breed Microsoft solutions for more than clients in 15 countries.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
6	Silicon Stack	Exact match	Richmond, AustraliaHQ recorded Sep 24, 2026	201-500	262 contacts →
	Exact match “Silicon Stack® is a rapidly expanding Australian enterprise headquartered in Melbourne, with an extensive clientele spanning Australia, NZ, Europe, North America, and Asia.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
7	EB Pearls	Exact match	Surry Hills, AustraliaHQ recorded Sep 24, 2026	201-500	224 contacts →
	Exact match “At EB Pearls, we believe in the power of technology to transform businesses and enrich lives.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
8	Shine Solutions Group	Exact match	Melbourne, AustraliaHQ recorded Sep 24, 2026	51-200	165 contacts →
	Exact match “Shine is trusted by major enterprise and government partners to deliver leading-edge cloud and on-premise software engineering solutions.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
9	ADAPS	Exact match	Melbourne, AustraliaHQ recorded Sep 24, 2026	201-500	156 contacts →
	Exact match “Adaps is Australia’s oldest privately owned IT services company.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
10	Flexisource IT	Exact match	Melbourne, AustraliaHQ recorded Sep 24, 2026	201-500	147 contacts →
	Exact match “FLEXISOURCE IT PTY LTD is a privately held company based in Australia that provides IT consulting and business services.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
11	ASTA	Exact match	Melbourne, AustraliaHQ recorded Sep 24, 2026	51-200	144 contacts →
	Exact match “Asta is a leading full-service technology and consulting agency.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
12	Katzion A Globallogic Company	Exact match	Sydney, AustraliaHQ recorded Sep 24, 2026	51-200	143 contacts →
	Exact match “We are highly trained and motivated professionals who thrive on our customer success stories.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
13	blackbook.ai	Exact match	Brisbane City, AustraliaHQ recorded Sep 24, 2026	51-200	142 contacts →
	Exact match “Blackbook AI is a global technology consulting company specialising in AI, automation, data, and digital development.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
14	Itelasoft	Exact match	Sydney, AustraliaHQ recorded Sep 24, 2026	51-200	141 contacts →
	Exact match “iTelaSoft is a ISO/IEC 27001:2022 accredited trusted technology partner delivering high-impact digital solutions across Australia, the UK, and APAC.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
15	Sibedge	Exact match	Perth, AustraliaHQ recorded Sep 24, 2026	201-500	124 contacts →
	Exact match “Sibedge is a globally distributed software engineering company that puts people first.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
16	Allion Technologies	Exact match	Chatswood, AustraliaHQ recorded Sep 24, 2026	201-500	123 contacts →
	Exact match “Rise from the Ordinary.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
17	Fabric Group	Exact match	Melbourne, AustraliaHQ recorded Sep 24, 2026	51-200	119 contacts →
	Exact match “Fabric Group is a collective of passionate technology professionals focused on delivering bespoke software solutions for our clients.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
18	SRA Information Technology	Exact match	Adelaide, AustraliaHQ recorded Sep 24, 2026	51-200	110 contacts →
	Exact match “SRA Information Technology Pty Ltd (SRA) is a leading software services organisation.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
19	Insighture	Exact match	Melbourne, AustraliaHQ recorded Sep 24, 2026	51-200	108 contacts →
	Exact match “Insighture is a multi-disciplinary technology consulting company based in Melbourne, Australia and Colombo, Sri Lanka.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
20	IE	Exact match	Richmond, AustraliaHQ recorded Sep 24, 2026	51-200	106 contacts →
	Exact match “IE is a consultancy with a 20-year heritage of delivering transformational digital experiences for many of Australia’s most progressive organisations such as Toyota, Australia…” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
21	AVEC	Exact match	Sydney Cbd, AustraliaHQ recorded Sep 24, 2026	11-50	98 contacts →
	Exact match “At Avec, our mission is simple:"Get IT done, better." We provide a value-driven alternative to traditional technology consulting, blending capacity and capability with our…” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
22	Optimal Transnational Pty. LTD	Exact match	Melbourne, AustraliaHQ recorded Sep 24, 2026	501-1,000	98 contacts →
	Exact match “Optimal Virtual Employee is a rapidly growing IT consultancy.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
23	BILUE	Exact match	Sydney, AustraliaHQ recorded Sep 24, 2026	51-200	94 contacts →
	Exact match “Bilue partners with ambitious organisations to design and engineer digital products that are built right, the first time.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase
24	DIUS	Exact match	Melbourne, AustraliaHQ recorded Sep 24, 2026	51-200	91 contacts →
	Exact match “It’s our ability to help clients navigate the new that continues to set us apart.” Recorded in the RevenueBase company graph · Sep 24, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “custom software development consulting firms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 24 of 3,307 custom software development consulting firms based in Australia

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Custom software development consulting firms based in Australia at a glance

As of Sep 24, 2026

29.1%Verified-email coverage

5.5%Mobile-number coverage

7.6Average contacts per company

1-10Median size (employees)

18.1%Largest-city concentration · Sydney

Sep 24, 2026Page data refreshed

Companies by employee count

1-10

2,018

11-50

1,022

51-200

215

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 26.0d

5,5270–30

1,64031–60

11461–90

390–180

36180+

Company record updated

Median 90.0d

00–30

2,16731–60

11,29761–90

10,23490–180

1,471180+

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 “custom software development consulting firms” 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 7,320 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 24, 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.

Custom software development consulting firms by metro

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 “custom software development consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many custom software development consulting firms are there based in Australia?

RevenueBase identified 3,307 company matches for custom software development consulting firms 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?

NRI Australia & NEW Zealand tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most custom software development consulting firms?

Sydney leads with 599 company records, followed by Melbourne (598) and Brisbane (195).

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 7,320 professional contacts with verified work emails tracked across these 3,307 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 24, 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.