Serving Delaware, Pennsylvania, Maryland, and New Jersey

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legacy systems using current frameworks, architectures, and UI/UX standards so your business isn’t held back by outdated technology.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.

Peace Of Mind That Keeps Our Business Moving

Diamond Technologies has significantly improved our day-to-day operations and our peace of mind. Their proactive monitoring, security-first approach, and fast response times keep our systems running smoothly and minimize downtime, which allows us to stay focused on our core business of selling beer.

What truly stands out is how proactive they are. They resolve issues before they impact our users, optimize our infrastructure, and guide us through upgrades and projects with strong technical expertise and attention to detail. The team is highly skilled, responsive, and extremely reliable, which gives N.K.S. Distributors complete confidence that our IT is in expert hands. I would absolutely recommend Diamond Technologies.

Ryan Nahrgang Ryan Nahrgang IT Manager
N.K.S. Distributors

Complete Confidence with Every IT Issue

I have complete confidence knowing that any issue is addressed quickly, accurately, and with great attention to detail. Their proactive support keeps our operations running smoothly and gives us peace of mind knowing we’re always in capable hands.

The quarterly reviews Diamond conducts are especially valuable. They take the time to assess our account, review the lifespan and performance of our equipment, and consistently ensure our satisfaction. Any concerns are handled promptly and professionally, which reinforces how knowledgeable, thorough, and dependable their team is. I would absolutely recommend Diamond to any organization looking for an IT team they can trust.

Sharon Gilgenast Sharon Gilgenast Executive Administrator
Investors Realty

Responsive IT Support That Gives Me True Peace of Mind

I can’t say enough about Diamond Technologies. As a small business owner, I need IT to just work and they make that happen. They are incredibly responsive with new computer equipment needs, server upgrades, and their 24-hour help desk support.

Two big moments stand out. When we installed a new server a couple of years ago, they handled everything smoothly from start to finish. Then, when we moved to a larger office space last year, they worked weekends to make sure the transition was seamless. We never lost access to our systems and our business did not miss a beat.

They treat me like I am their only client. Everything gets coordinated including new equipment, setup, and any help desk issues without me having to chase anyone down. I would absolutely recommend Diamond Technologies to any small business owner who wants responsive IT support and real peace of mind.

Joe Cantania, Co-Founder and CEO, Anderson & Cantania Joe Cantania Co-Founder and CEO
Anderson & Catania

Seamless IT Support That Lets Me Focus On My Staff

Since we switched our IT services to Diamond Technologies, I can now focus on day-to-day support of our staff rather than having to focus so much time on routine maintenance tasks. From our onboarding with our Technical Account Manager through project work with our Senior Systems Engineers, I’ve been able to have the best peace of mind knowing the job will be done right the first time.

Recently, we had a project to merge 2 separate Microsoft 365 tenants into one. This was no small project, but thankfully our lead Senior Systems Engineer made the transition fairly smooth for our staff. On the day of the switch, he worked one on one with our staff to get back into their accounts in very short order. He was responsive throughout the whole process and helped ease my mind the whole time.

The whole Diamond Technologies team is responsive, knowledgeable and very professional.

Mark Stallard IT Specialist
EDiS Company

Professional, Responsive, And Security-Focused IT Support

Diamond Technologies has been instrumental in securing and supporting Emory Hill’s technology systems. Their team led a smooth transition of our network from a previous provider and continues to be highly responsive, proactive, and security focused. We value their commitment to IT literacy training and trust them to keep our systems safe and running efficiently.

Carmen Facciolo Carmen Facciolo President
NAI Emory Hill Real Estate Services

Peace Of Mind You Can Actually Count On

Before working with Diamond Technologies, constant system issues made it harder to stay focused on my role. Now, things just work. Their team keeps our systems running smoothly and jumps in fast whenever something urgent comes up. That level of responsiveness gives me real peace of mind and frees me up to focus on supporting our team and getting work done. Even during busy times, they’re calm, clear, knowledgeable, and always follow through. They’re reliable, easy to work with, and I’d absolutely recommend them to any organization that needs IT they can truly count on.

Gail A. Operations Manager
Wilmington Based

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

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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

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