Data-Driven Insights,
Business‑Driven Results
With over 35 years of software development experience, Preston Software provides tailored software and comprehensive data management solutions that enable organizations of all sizes to work smarter, scale confidently, and operate seamlessly across industries and international boundaries.
- Application Development
- ERP Solutions
- EDI Systems Integration
- Consulting & Data Analytics
- Compliance
- Medical Practice Management
- Training
- Legacy System Modernization
- Data Migration / Conversion
- Software Support / Administration
- Document / Form Generation
- Human Resource Systems
- Tax / Audit Support
Is Your Legacy System Holding Your Business Back?
- Are you still relying on outdated legacy applications?
- Is disconnected data slowing down your decisions?
- Are vendor and customer system integrations eating up your team's time?
- Looking for a trusted partner who can bridge the gap between your IBM i/AS400 infrastructure and modern cloud platforms such as AWS and Azure?
Built Around Your Systems, Not a Template
35+ Years Software Development Experience
Decades of hands-on RPGLE, C#, Java, and HTML experience.
End-to-End Data Management
From migration and conversion to EDI, vendor integration, and reporting, we manage your data across its full lifecycle.
Tailored, Not Templated
Every engagement is built around your organization's systems, industry, and goals — not a one-size-fits-all package.
Founded 1990 Still Hands-on Today
Founded in 1990 by Jeff Preston, Preston Software has been at the forefront of delivering innovative custom software and data management solutions to organizations of all sizes. With over 35 years of experience, we excel in modernizing legacy systems and providing custom solutions for effective data management — helping organizations maintain a competitive edge in today's fast-paced, global digital landscape.
Our expertise spans a wide range of industries, including manufacturing, spirits and beverages, healthcare, textiles, and state and local government. Whether you need custom software development, data migration, system modernization, or ongoing support, we deliver the solutions and services your organization needs to succeed.
Ready to modernize with confidence?
Reach out with your questions or requests — we typically respond within 24 hours.
Contact Us