Application Development and Support for Small and Mid-Sized Businesses
Most IT support companies stop at the network. Diamond Technologies also supports the business applications your team depends on every day, from custom application development to legacy system modernization to ongoing software support services. If your software is holding your business back, we can help.
What We Do
Our Application Development and Support Services
Business Application Support
We manage and support your mission-critical software applications, whether they’re hosted on your servers or in the cloud. Your team gets the same local, responsive support for your software that Diamond Technologies provides for your broader IT environment.
Custom Application Development
When off-the-shelf software doesn’t fit the way your business works, we build what does. Our application development company delivers tailored solutions using .NET, Java, Python, Node.js, and modern JavaScript frameworks, built around your specific workflows and requirements.
Legacy System Modernization
Older applications slow your team down and create security risks. Our software maintenance services include transforming legacy systems using current frameworks, architectures, and UI/UX standards so your business isn’t held back by outdated technology.
Cloud Migration and Infrastructure
We assist with cloud migration, architecture, and optimization across platforms like Azure and AWS, ensuring your systems are scalable, resilient, and cost-efficient as your business grows.
SaaS Integration & Support
We implement, customize, and support CRM and ERP systems to streamline operations across sales, finance, HR, and procurement. If your platforms aren’t talking to each other, we can fix that.
AI Consulting and Development
From process automation to custom models and intelligent application management services, we help small and mid-sized businesses apply AI in practical ways that make day-to-day operations more efficient.
IT Staffing
Need experienced IT professionals to augment your team? We provide skilled staff on-site or remotely, with the right background for your specific environment and projects.
Why Businesses Choose Diamond Technologies for Application Development and Support
- We understand your software. Diamond Technologies has deep roots in application development and support. It’s part of how we grew into a managed IT services provider. That background means we’re comfortable supporting the line-of-business applications other IT providers won’t touch.
- One team for IT and applications. Managing separate vendors for infrastructure support and application support services creates gaps and finger-pointing. With Diamond Technologies, it’s one team that understands your full environment.
- Local support. Our technicians are based in Wilmington, DE, and your support is handled in-house, never offshored. When something needs attention, you’re reaching someone who already knows your environment.
- Long-term partnership. Diamond Technologies has been supporting businesses in Delaware, Pennsylvania, Maryland, and New Jersey for over 30 years. We take the time to understand your business, your workflows, and the specific challenges you face.
Client Testimonials
What Our Clients Say
Hear from the businesses we’ve helped across Delaware, Pennsylvania, Maryland, and New Jersey.
Is Outdated or Unsupported Software Slowing Your Business Down?
If your applications are slowing your team down, creating security risks, or just not doing what you need them to do, Diamond Technologies can help. We support, modernize, and build business software solutions for small and mid-sized businesses across the Mid-Atlantic region.
Free Guide
The Mid-Atlantic Business Owner’s Guide to Choosing the Right IT Support Company
Understand the cost of managed IT services: what small businesses should expect to pay and how to get exactly what you need without hidden fees or bloated contracts






