Company lists · Data refreshed September 2026

Top 25 Software development agencies based in Sydney, Australia

RevenueBase identified 579 software development agencies headquartered in Sydney, Australia as of September 2026 and tracks 4,923 professional contacts across them, including 1,309 with verified work emails. Sydney is the largest hub.

This list covers software development agencies headquartered in Sydney, 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 6, 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 6, 2026 86% judged on-target in blind review
579Companies
4,923Contacts tracked
1,309Verified emails
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The 25 largest software development agencies based in Sydney, Australia

Ranked by team size
Top 25 of 579 software development agencies based in Sydney, Australia, ranked by team size, largest first. Data refreshed Sep 6, 2026. RevenueBase Smart Search rates how each company's information relates to software development agencies: 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 evidenceSydney, AustraliaHQ checked Sep 6, 20261,001-5,000711 contacts →

“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.”

Source: company website · checked Sep 6, 2026
2Indirect evidenceSydney, AustraliaHQ checked Sep 6, 202610001+177 contacts →

“Barhead, an Akkodis company, is an award-winning consulting firm focused on leveraging Microsoft’s Technology Stack to deliver business solutions.”

Source: company website · checked Sep 6, 2026
3Indirect evidenceSydney, AustraliaHQ checked Sep 6, 202651-200141 contacts →

“iTelaSoft is a ISO/IEC 27001:2022 accredited trusted technology partner delivering high-impact digital solutions across Australia, the UK, and APAC.”

Source: company website · checked Sep 6, 2026
4Indirect evidenceSydney, AustraliaHQ checked Sep 6, 202651-20094 contacts →

“Bilue partners with ambitious organisations to design and engineer digital products that are built right, the first time.”

Source: company website · checked Sep 6, 2026
5Indirect evidenceSydney, AustraliaHQ checked Sep 6, 202651-20077 contacts →

“With real-world experience, a global team, and the trust of local clients, we’re the end-to-end technology partner businesses rely on to turn bold ideas into powerful results.”

Source: company website · checked Sep 6, 2026
6Partial evidenceSydney, AustraliaHQ checked Sep 6, 202611-5075 contacts →

“Webential is a driving-edge web design, development, and digital marketing agency with a group of similar-minded digital creatives who believe in traveling that extra mile to…”

Source: company website · checked Sep 6, 2026
7Partial evidenceSydney, AustraliaHQ checked Sep 6, 202651-20057 contacts →

“Appello is a global digital product development company headquartered in Sydney.”

Source: company website · checked Sep 6, 2026
8Indirect evidenceSydney, AustraliaHQ checked Sep 6, 202651-20057 contacts →

“Enterprise-grade teams.”

Source: company website · checked Sep 6, 2026
9Indirect evidenceSydney, AustraliaHQ checked Sep 6, 202651-20048 contacts →

“At Round Table Apps, our mission is to create digital experiences that help organisations achieve their transformative goals.”

Source: company website · checked Sep 6, 2026
10Strong evidenceSydney, AustraliaHQ checked Sep 6, 202651-20048 contacts →

“Eritheia Labs is a Australia & Pakistan based IT, Software Development, and Managed Services Company that consults with top organizations to maximize their success.”

Source: company website · checked Sep 6, 2026
11Indirect evidenceSydney, AustraliaHQ checked Sep 6, 202651-20046 contacts →

“A leading technology consultancy that empowers businesses with comprehensive solutions for their digital transformation.”

Source: company website · checked Sep 6, 2026
12Indirect evidenceSydney, AustraliaHQ checked Sep 6, 202651-20046 contacts →

“Cognitonic Systems is a global digital solutions and consulting services provider and a registered Pega partner specialising in iBPM, CRM, Case management, Robotics and…”

Source: company website · checked Sep 6, 2026
13Partial evidenceSydney, AustraliaHQ checked Sep 6, 202611-5044 contacts →

“From web development to building a smart and creative solution, we cater to all your needs with our groundbreaking team and tools.”

Source: company website · checked Sep 6, 2026
14Indirect evidenceSydney, AustraliaHQ checked Sep 6, 202651-20042 contacts →

“Ideate, Inspire, Innovate, Implement Partner 2 Simplify (P2S) is a global IT services company simplifying digital transformation for organisations across Australia, India, and the…”

Source: company website · checked Sep 6, 2026
15Indirect evidenceSydney, AustraliaHQ checked Sep 6, 202651-20040 contacts →

“At DevOps1, our technologists are dedicated to using their collective experience and knowledge of modern engineering best practices to deliver effective, secure, and…”

Source: company website · checked Sep 6, 2026
16Indirect evidenceSydney, AustraliaHQ checked Sep 6, 202611-5035 contacts →

“Digizoo was formed to fill a gap in the market for practical, technical transition from traditional systems and processes to the new digital world, increasingly sought by their…”

Source: company website · checked Sep 6, 2026
17Partial evidenceSydney, AustraliaHQ checked Sep 6, 202611-5035 contacts →

“We deliver future proof software for organisations that rely on technology to enable their business.”

Source: company website · checked Sep 6, 2026
18Indirect evidenceSydney, AustraliaHQ checked Sep 6, 202651-20035 contacts →

“About Sazae Pty Ltd Sazae Pty Ltd is a global IT consulting company headquartered in Sydney, with offices in Australia, Japan, and Vietnam.”

Source: company website · checked Sep 6, 2026
19Indirect evidenceSydney, AustraliaHQ checked Sep 6, 2026n/a33 contacts →

“We are a high technology consulting firm in Sydney, Australia.”

Source: company website · checked Sep 6, 2026
20Indirect evidenceSydney, AustraliaHQ checked Sep 6, 2026501-1,00032 contacts →

“Advance Delivery Consulting (ADC) is a trusted IT consulting partner across Australia, APAC, and the Middle East, driving transformational business value through innovative…”

Source: company website · checked Sep 6, 2026
21Indirect evidenceSydney, AustraliaHQ checked Sep 6, 202651-20032 contacts →

“Sustainability is more than a buzzword it's the cornerstone of humanity's future.”

Source: company website · checked Sep 6, 2026
22Partial evidenceSydney, AustraliaHQ checked Sep 6, 202611-5028 contacts →

“Proitzen is a provider of business enterprise and on-demand software solutions.”

Source: company website · checked Sep 6, 2026
23Indirect evidenceSydney, AustraliaHQ checked Sep 6, 202651-20026 contacts →

“Switch is a multi-award-winning digital experience and technology agency with proven success in deliver with proven success in delivering the complete vision for customer…”

Source: company website · checked Sep 6, 2026
24Indirect evidenceSydney, AustraliaHQ checked Sep 6, 202611-5026 contacts →

“Vervon Technologies is a niche IT services organization that specializes in providing implementation and eventually maintenance services to customers who employ low-code/no-code…”

Source: company website · checked Sep 6, 2026
25Partial evidenceSydney, AustraliaHQ checked Sep 6, 2026n/a25 contacts →

“Luxoft, a DXC Technology Company, is a trusted partner in global digital transformation and a leader in delivering competitive advantage in the software-defined world.”

Source: company website · checked Sep 6, 2026

Showing 25 of 579 software development agencies based in Sydney, Australia

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Software development agencies based in Sydney, Australia at a glance

As of Sep 6, 2026
26.6%Verified-email coverage
8.5Average contacts per company
1-10Median size (employees)
100.0%Largest-city concentration · Sydney
Sep 6, 2026Page data refreshed

Companies by employee count

1-10
324
11-50
182
51-200
62
201-500
3
501-1,000
4
1,001-5,000
2
10001+
2

Email recency for this list is measured across the whole Australia list rather than this city, so it is reported there. Company counts and contact totals on this page are exact for Sydney, over 579 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 software development agencies, 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 Sydney, Australia whose own description of what they do matches “software development agencies”. 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 software development agencies), 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 software development agencies, and records with no verified work email. Companies headquartered outside Sydney 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, 1,309 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 6, 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 software development agencies, 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 software development agencies are there based in Sydney, Australia?

RevenueBase identified 579 software development agencies headquartered in Sydney, 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?

NRI Australia & NEW Zealand, headquartered in Sydney, tops this list with the largest team on record.

Which city has the most software development agencies?

Sydney leads with 579 headquartered companies, followed by Melbourne (565) and Brisbane (179).

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 1,309 verified decision-maker contacts tracked across these 579 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 6, 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.