Systems integration companies in Sydney
To connect business systems and keep their data in sync, Sydney organisations most often consider the integration firms below.
Published by PicNet, one of the providers below. Details of the other providers come from their own websites, checked on 30 October 2026. How we compare providers.
What we compared
- Integration platforms
- The integration tools and platforms each firm names.
- Location
- Sydney or Australian presence.
- What they integrate
- Business applications, data platforms, APIs or enterprise systems.
- Who they work with
- The client sizes and sectors they name.
At a glance
| Provider | Based | Founded |
|---|---|---|
| Atturra | Sydney (Bond Street) and St Leonards; offices across Australia, New Zealand, Hong Kong, Singapore and the USA | Not stated |
| C9 | Brisbane, serving Sydney and Melbourne | 2007 |
| EPAM Systems | Sydney (King Street) and Adelaide offices of a global firm | 1993 |
| NexusByte | McMahons Point, Sydney | 2014 |
| PicNet | Crows Nest, Sydney | 2001 |
The providers, in alphabetical order
Atturra
Atturra's integration and data services include API strategy, iPaaS modernisation and migration, and Boomi integration consulting. It also provides data, AI and managed services.
- Suits
- Government (federal, state and local), defence, education, financial services, manufacturing, resources and utilities. Atturra states it has more than 1,000 clients.
C9
C9 builds custom software and integrations that connect CRMs, ERPs, databases and payment gateways through APIs, middleware and enterprise application integration.
- Suits
- Businesses of all sizes, from growing Australian businesses to enterprises.
EPAM Systems
EPAM Systems works on digital transformation and product engineering. Its API and integration practice covers API strategy, platforms, and integrating new systems, legacy assets and partner data.
- Suits
- Large enterprises in financial services, insurance, software, energy and utilities, life sciences and other sectors. EPAM states that its clients include 345+ Forbes Global 2000 companies.
NexusByte
NexusByte connects CRM, ERP, accounting and third-party platforms, and also offers web and software development and IT support.
- Suits
- Sydney businesses that re-enter data across several systems. Its IT support also serves remote professionals and households.
PicNetPublisher of this page
PicNet integrates applications and data using its open-source platform Centazio and Microsoft Azure Integration Services. Its work includes reporting databases and ongoing support.
- Suits
- Mid-sized organisations replacing or connecting several business systems, including not-for-profits and membership organisations.
- Platforms
- Centazio (open source, .NET), Microsoft Azure Integration Services, AWS.
- Named deployments
- Cruising Yacht Club of Australia; Guide Dogs NSW/ACT.
Questions buyers ask
How do I choose a systems integration company?
Ask which integration platform the firm would use and why, who owns the integrations and any licences afterwards, and how failures are monitored and fixed. Ask for an integration of similar systems that it still supports.
Do I need an integration platform licence?
Not always. Commercial integration platforms carry ongoing licence fees; open-source platforms such as Centazio do not, though you still pay for the engineering and hosting.
What is the difference between application integration and data integration?
Application integration keeps systems in sync as things happen, such as a new member in one system appearing in another. Data integration usually moves data into a reporting database or warehouse. Many programs need both.
More: PicNet application integration · Common questions ·All provider comparisons
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