Darwin's Software Specialists · 20+ Years

Purpose-Built Software
for the Northern Territory

IT Business Solutions builds custom software for NT government agencies, local councils, and businesses. Locally owned and operated, with a direct line to Aaron Leonhardt, the founder and engineer.

✔ Government Trusted✔ 20+ Year Track Record✔ Darwin Based & Operated
Aaron Leonhardt at his Darwin office — IT Business Solutions

Government Trusted

Decades of working with NT Government agencies and local councils.

Direct to Founder

An always-open line to Aaron, the engineer who built your system.

Locally Owned

Darwin based. NT invested. We understand your environment.

Proven Technology

Oracle, .NET, and LLBLGen: the same stack powering NT Government systems that have run without incident for a decade.

Software Built Around Your Business

From database architecture to full-stack web applications. If your organisation runs on data, we build the system that manages it.

Line-of-Business Applications

Bespoke WinForms and web applications built around your workflows, processes, and compliance requirements.

Database Architecture & Oracle Expertise

Oracle and MS SQL Server design, optimisation, and migration. Using LLBLGen for clean, type-safe data access.

Web API & System Integration

RESTful .NET WebAPI services that connect your systems to third-party platforms, payment gateways, and government APIs.

Payments & Compliance

Secure payment integrations and compliance-ready reporting for government grants and procurement systems.

Legacy System Modernisation

Migration of ageing VB6/classic ASP systems to modern .NET, preserving business logic while gaining new capability.

Networking & Infrastructure

Domain configuration, routing, private/public networking, and server administration for complete IT ownership.

Selected Projects

Over two decades, we have built and maintained systems across NT Government, local councils, utilities, and private enterprise.

Work Directly With the Founder

When you engage IT Business Solutions you get Aaron Leonhardt, an engineer with over 20 years building software for NT Government and business. No account managers. No offshore teams. You work directly with the person writing the code.

Aaron Leonhardt — Founder, IT Business Solutions

Technology Stack

VB.NET
C# / .NET
WinForms
ASP.NET WebAPI
LLBLGen ORM
Oracle DB
MS SQL Server
Entity Framework
Windows Server
IIS
Active Directory
Azure
JavaScript / TypeScript
HTML5 / CSS3
REST APIs
SOAP / XML