Engineering Custom Software and Mobile Applications Since 1989

Zco Corporation is a leading U.S.-based custom software development company that has remained at the forefront of software innovation. We combine the latest technology, creative minds, and business acumen to build custom software, mobile applications, and digital platforms that perform in the real world.

Trusted Custom Software Development Company


  • 1000+

    Projects Delivered



  • 250+

    Skilled Professionals On Board



  • 35+

    Years of Innovation



  • 4.8/5

    Rated on Clutch & Google

About Zco Corporation

Zco’s story began in 1989, when our president, John Olapurath, founded the company with a vision of helping organizations overcome complex business challenges through custom software solutions. He brought deep experience to the venture, having helped develop DECnet at Digital Equipment Corporation and built AimTech Corporation into one of New Hampshire’s leading software companies.  Inspired by seeing firsthand how thoughtfully engineered software can transform business efficiency, he built Zco into a company rooted in strong engineering principles, client collaboration, and continuous innovation.

We started by developing Windows-based business applications that replaced manual processes, simplified data management, and improved operational efficiency.  As technology evolved, we expanded into enterprise web development using ASP, PHP, Java, and ASP.NET, helping businesses move from standalone desktop software to scalable, web-based solutions. 

This steady expansion into new technologies set the stage for Zco’s next shift. In 2007, well before mobile-first became an industry standard, we recognized that smartphones would fundamentally change how people used technology, and began applying our desktop and enterprise experience to mobile app development. From there, as software ecosystems became more interconnected, we kept building on that expertise, helping organizations create connected, cloud-integrated systems that could exchange data in real time.

Today, Zco is a trusted custom software and mobile app development company serving businesses across the United States. As artificial intelligence represents the next evolution of software, we help organizations harness it through intelligent applications, automation, and data-driven solutions. We also use AI throughout our own development processes to enhance productivity, accelerate delivery, and enable our teams to focus on solving more complex engineering challenges.

Our Vision

Creating long-term partnerships with organizations that need a trusted technology partner to rely on to navigate change, embrace new opportunities, and build intelligent software solutions that remain valuable as their needs evolve.

Our Mission

Our mission is to help businesses with unique ideas make confident technology decisions and turn them into custom digital solutions that are sustainable, valuable, and built to last. We work closely with our clients at every stage, shaping the vision, solving challenges as they come up, incorporating feedback, and helping them bring their software to market successfully.

Thirty-Five Years of Custom Software Development Taught Us What Doesn’t Change

Today, clients expect software that scales globally, integrates with dozens of systems, protects sensitive data, delivers consumer-grade user experiences, and continuously evolves after launch. Yet, the qualities clients value most have remained remarkably consistent.

They want a custom software development partner who:

  • Communicates openly.
  • Delivers end-to-end solutions as promised.
  • Builds software that lasts.
  • Stays available long after launch.
  • Adapts as their business grows.

Those expectations have shaped our delivery approach just as much as any programming language ever has.

Custom Software Development Approach Refined By Experience

Every project we’ve delivered across iOS, Android, web, and cloud has helped us refine our software development process that puts our clients in the best position to succeed.

  • We validate ideas before development begins.
  • We design for the future rather than today’s requirements.
  • We build in measurable milestones instead of surprises.
  • We involve clients throughout the process instead of waiting until launch.
  • We combine proven engineering practices with AI-assisted development to accelerate delivery.

Zco’s Journey Through Every Major Technology Shift

Every milestone reflects more than a new technology. It reflects our commitment to helping clients embrace change, adapt with confidence, and take advantage of what’s next.

1989
Windows Desktop Application Development (PowerBuilder and MFC/C++)
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This is where Zco started, writing desktop software back when "installing an app" meant a CD or a floppy disk.

Web Development with ASP
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We helped clients extend their software beyond the desktop and connect employees, customers, and operations through the web.

1997
1999
Workflow Automation Product Development
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Built and shipped our own product, which taught us how to design software for daily use.

Enterprise Java Development
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Expanded our enterprise software expertise with Java to support larger, more complex business systems.

2000
2002
ASP.NET and C#
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Adopted Microsoft's new platform right as it became the enterprise default.

iPhone Application Development
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We began building native iPhone apps soon after its launch, helping clients establish their mobile presence from the beginning.

2007
2009
Game Development
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We branched into games, applying the same engineering rigor to interactive and entertainment software.

Symbian and BlackBerry Applications
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Started building for the mobile platforms clients' users were on at the time.

2010
2011
Android Development
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Moved into Android development as it grew into the dominant mobile operating system worldwide.

Hybrid Apps, Bluetooth Integration, IoT, and AR
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Expanded past standalone apps into software that connects with hardware, physical devices, and the world around the user.

2012
2014
Titanium Development
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Adopted Titanium to give clients native-feeling apps without the cost of separate native builds.

Xamarin Development
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Shifted to Xamarin so clients could share code across platforms without giving up native performance.

2017
2018
React Native
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Adopted React Native as the industry moved toward faster, more flexible cross-platform development.

Flutter
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Adopted Flutter for single-codebase, multi-platform development.

2021
2023
AI-Powered Software Solutions
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Expanded into AI-powered software, helping clients integrate intelligent features while also using AI to improve our own development process.

Every Technology Shift Made Us Better Engineers

To build a stellar piece of software, you need to utilize multiple development technologies. Some are great for designing the frontend, but others are ideal for backend work. Our experienced team can direct you to the best technologies for your specific project needs.

Our full stack development team has you covered from the client side to the server side. Clean code and a comprehensive testing process ensures that your app will stand the test of time and provide a foundation to scale for the future.

Swift Swift React React Ajax AJAX Kotlin Kotlin NodeJS NodeJS AWS AWS Xamarin Xamarin .NET Core .NET Core ReactJS ReactJS React Native React Native Blazor Blazor Unity Unity Flutter Flutter Go Go PHP PHP Objective C Objective C MongoDB MongoDB C# C# Androd Android SQL SQL HTML5 HTML5 Java Java SQL jQuery Javascript JavaScript

What Sets Us Apart

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Client-First
Collaboration

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3 Decades of
Outstanding Work

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A Commitment
to Quality

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Passion to Envision
and Make a Difference

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Engineering Excellence
Across Diverse Technologies

Industries We’ve Helped Transform

Randy from Zco

Working at Zco

We look for people who take pride in building great software, enjoy solving complex problems, and never stop learning. Because our team is always exploring new tools, platforms, and ways of working that help us deliver better outcomes for our clients.

Through staff augmentation, our people work directly with client teams, sometimes onsite, sometimes remote, depending on the project. That means each project brings opportunities to learn new industries, technologies, and ways of working.

Some team members have been with Zco since the beginning, reflecting the kind of environment where people build long-term careers. We value collaboration, encourage ideas at every level, and support growth in many directions, whether that means deepening technical expertise, working closer with clients, or moving into leadership.

Our Locations

In July of 2022, we officially moved into Trafalgar Square in Nashua, New Hampshire. Trafalgar Square is described as being a “prestigious business center clad in a modernist glass façade” with stunning views and close proximity to other great local businesses. Our modern conference room in the glass tower is really something to behold!

We also operate satellite offices in Boston and New York to provide convenient meeting locations for our clients.

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Nashua (Headquarters)
20 Trafalgar Square #500,
Nashua, NH 03063, USA
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745 Atlantic Ave, Boston,
MA 02111, USA

Engineering the Right Solution Starts With Understanding the Problem

Let’s discuss your project! Just fill out the form below or call 603.881.9200.

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