Company lists · Data refreshed September 2026

Top 24 Custom software development startups based in Australia

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

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 1,338 companies tracked

RevenueBase identified 1,338 custom software development startups headquartered in Australia as of September 2026 and tracks 9,449 professional contacts across them, including 2,564 with verified work emails and 485 with mobile numbers. Sydney is the largest hub.

This list covers custom software development startups 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 29, 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 29, 2026 86% judged on-target in blind review

1,338Companies

9,449Contacts tracked

2,564Verified emails

485Mobile numbers

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The 24 largest custom software development startups based in Australia

Ranked by team size

Top 24 of 1,338 custom software development startups based in Australia, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to custom software development startups: 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	BSA Limited	Indirect evidence	Chatswood, AustraliaHQ checked Sep 29, 2026	201-500	436 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 29, 2026
2	SSW	Indirect evidence	Neutral Bay, AustraliaHQ checked Sep 29, 2026	51-200	281 contacts →
	Indirect evidence “SSW's Consulting Services have delivered best-of-breed Microsoft solutions for more than clients in 15 countries.” Source: RevenueBase Database · checked Sep 29, 2026
3	Silicon Stack	Indirect evidence	Richmond, AustraliaHQ checked Sep 29, 2026	201-500	262 contacts →
	Indirect evidence “Silicon Stack® is a rapidly expanding Australian enterprise headquartered in Melbourne, with an extensive clientele spanning Australia, NZ, Europe, North America, and Asia.” Source: RevenueBase Database · checked Sep 29, 2026
4	EB Pearls	Indirect evidence	Surry Hills, AustraliaHQ checked Sep 29, 2026	201-500	224 contacts →
	Indirect evidence “At EB Pearls, we believe in the power of technology to transform businesses and enrich lives.” Source: RevenueBase Database · checked Sep 29, 2026
5	Flexisource IT	Indirect evidence	Melbourne, AustraliaHQ checked Sep 29, 2026	201-500	147 contacts →
	Indirect evidence “FLEXISOURCE IT PTY LTD is a privately held company based in Australia that provides IT consulting and business services.” Source: RevenueBase Database · checked Sep 29, 2026
6	Sibedge	Partial evidence	Perth, AustraliaHQ checked Sep 29, 2026	201-500	124 contacts →
	Partial evidence “Sibedge is a globally distributed software engineering company that puts people first.” Source: RevenueBase Database · checked Sep 29, 2026
7	Allion Technologies	Indirect evidence	Chatswood, AustraliaHQ checked Sep 29, 2026	201-500	123 contacts →
	Indirect evidence “Rise from the Ordinary.” Source: RevenueBase Database · checked Sep 29, 2026
8	Fabric Group	Partial evidence	Melbourne, AustraliaHQ checked Sep 29, 2026	51-200	119 contacts →
	Partial evidence “Fabric Group is a collective of passionate technology professionals focused on delivering bespoke software solutions for our clients.” Source: RevenueBase Database · checked Sep 29, 2026
9	Peercore	Partial evidence	Melbourne, AustraliaHQ checked Sep 29, 2026	51-200	83 contacts →
	Partial evidence “Peercore Australia is unique in the creation and the specialization of software business solutions.” Source: RevenueBase Database · checked Sep 29, 2026
10	Nuclieos	Strong evidence	Melbourne, AustraliaHQ checked Sep 29, 2026	51-200	70 contacts →
	Strong evidence “Nuclieos is a software development company based in Melbourne, Australia, delivering innovative, AI-driven solutions to businesses worldwide.” Source: RevenueBase Database · checked Sep 29, 2026
11	23 Digital	Strong evidence	Melbourne, AustraliaHQ checked Sep 29, 2026	51-200	67 contacts →
	Strong evidence “23 Digital is a client focused digital agency with focus on Web, eCommerce, Mobile Apps, Software Development, ERP Integration and Online marketing.” Source: RevenueBase Database · checked Sep 29, 2026
12	Itconnexion	Partial evidence	Hawthorn East, AustraliaHQ checked Sep 29, 2026	11-50	66 contacts →
	Partial evidence “ITConnexion has provided high-quality innovative and customised technology solutions for our clients since 2003.” Source: RevenueBase Database · checked Sep 29, 2026
13	Intergy Consulting	Partial evidence	North Sydney, AustraliaHQ checked Sep 29, 2026	51-200	63 contacts →
	Partial evidence “Since 2004 Intergy Consulting has been helping clients realise their business vision through delivering innovative, high quality, customised IT solutions.” Source: RevenueBase Database · checked Sep 29, 2026
14	Enterprise Monkey	Indirect evidence	North Geelong, AustraliaHQ checked Sep 29, 2026	11-50	60 contacts →
	Indirect evidence “At Enterprise Monkey, we provide innovative technology solutions that allow for better management of resources, with greater flexibility to adapt to market conditions, while…” Source: RevenueBase Database · checked Sep 29, 2026
15	Fenwick	Indirect evidence	Melbourne, AustraliaHQ checked Sep 29, 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 29, 2026
16	Appello	Partial evidence	Sydney, AustraliaHQ checked Sep 29, 2026	51-200	57 contacts →
	Partial evidence “Appello is a global digital product development company headquartered in Sydney.” Source: RevenueBase Database · checked Sep 29, 2026
17	Bigger	Indirect evidence	Sydney, AustraliaHQ checked Sep 29, 2026	51-200	57 contacts →
	Indirect evidence “Enterprise-grade teams.” Source: RevenueBase Database · checked Sep 29, 2026
18	Patient Zero	Partial evidence	Brisbane City, AustraliaHQ checked Sep 29, 2026	51-200	56 contacts →
	Partial evidence “Despite what the name might lead you to believe, we're not doctors, medical researchers, or anything medical for that matter, apart from a few of our customers who are.” Source: RevenueBase Database · checked Sep 29, 2026
19	James Anthony Consulting	Strong evidence	Adelaide, AustraliaHQ checked Sep 29, 2026	11-50	52 contacts →
	Strong evidence “Based in South Australia, James Anthony Consulting (JAC) delivers software development projects, system design studies, hosting migrations, technical training, and user support.” Source: RevenueBase Database · checked Sep 29, 2026
20	Eritheia Labs	Strong evidence	Sydney, AustraliaHQ checked Sep 29, 2026	51-200	48 contacts →
	Strong evidence “Eritheia Labs is a Australia & Pakistan based IT, Software Development, and Managed Services Company that consults with top organizations to maximize their success.” Source: RevenueBase Database · checked Sep 29, 2026
21	Empite	Strong evidence	Melbourne, AustraliaHQ checked Sep 29, 2026	51-200	47 contacts →
	Strong evidence “We rescue failing software projects and build custom apps for Australian startups and SMEs.” Source: RevenueBase Database · checked Sep 29, 2026
22	ENEE	Partial evidence	Prospect, AustraliaHQ checked Sep 29, 2026	11-50	47 contacts →
	Partial evidence “Enee Solutions are a young, innovative technology business that is focused on bringing a fresh approach to helping our customers grow their business through technology.” Source: RevenueBase Database · checked Sep 29, 2026
23	Kiandra	Strong evidence	Melbourne, AustraliaHQ checked Sep 29, 2026	51-200	39 contacts →
	Strong evidence “Kiandra is a founder-owned and led software development company based in Australia.” Source: RevenueBase Database · checked Sep 29, 2026
24	Digiground	Partial evidence	North Sydney, AustraliaHQ checked Sep 29, 2026	11-50	39 contacts →
	Partial evidence “DigiGround provides an end-to-end business solution using a creative and collaborative model of design and development to create solutions for all business needs.” Source: RevenueBase Database · checked Sep 29, 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: custom software development startups. 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 custom software development startups.
Partial evidence: Its own public description names part of custom software development startups, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name custom software development startups. 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 24 of 1,338 custom software development startups based in Australia

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Custom software development startups based in Australia at a glance

As of Sep 29, 2026

27.1%Verified-email coverage

5.1%Mobile-number coverage

7.1Average contacts per company

1-10Median size (employees)

17.7%Largest-city concentration · Sydney

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

759

11-50

467

51-200

201-500

501-1,000

1,001-5,000

10001+

Freshness & accuracy

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

Email last verified

Median 32.0d

1,0840–30

1,38431–60

8161–90

390–180

12180+

Company record updated

Median 95.0d

00–30

57931–60

3,73961–90

4,53390–180

598180+

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 custom software development startups, 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 “custom software development startups”. 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 custom software development startups), 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 custom software development startups, 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, 2,564 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 29, 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.

Custom software development startups by metro

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 custom software development startups, 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 custom software development startups are there based in Australia?

RevenueBase identified 1,338 custom software development startups 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?

BSA Limited, headquartered in Chatswood, tops this list with the largest team on record.

Which city has the most custom software development startups?

Sydney leads with 237 headquartered companies, followed by Melbourne (230) and Brisbane (77).

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 2,564 verified decision-maker contacts tracked across these 1,338 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 29, 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.