Top Rated Mobile App Development Company in the United States by Clutch and GoodFirms


New York | Boston | New Hampshire
Custom Software & Mobile App Development

Our Clients

30 Years of Innovation in Software Development

A Veteran Custom Software Developer

Zco Corporation was founded with the sole objective of creating custom software solutions. While our roots are in desktop and backend software, we are primarily a mobile app development company. We develop software for startups, entrepreneurial app creators, and Fortune 500 companies. We’ve established our reputation in the industry through our commitment to elegant mobile app design and development.

Our Services

mobile application development services by Zco Corporation - a leading American mobile app development agency

Mobile Applications

We provide mobile app development services, specializing in both native and hybrid apps for a wide range of devices. Clients rely on our comprehensive design documentation, agile development and testing, and post-launch support.

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Enterprise software development services using technologies Node.js MongoDB .NET PHP by Zco top software development companies in the US

Enterprise Software

Zco creates quality custom software solutions tailored to your organization’s needs. Using technologies like Node.js, MongoDB, .NET, PHP, and others to engineer backend architectures that support mobile apps and solutions.

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Leading mobile game app development companies in the world, Zco rated as a top mobile game developer in 2019 by Clutch

Mobile Games

From educational apps to sprawling MMOs, our dedicated games team can bring your mobile game ideas to life. Along with our artists and animators, we put the power of an entire game studio at your disposal.

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Why Our Clients Choose Us

Zco Corporation is a Top Mobile App Development Companies in the World rated by GoodFirms
Zco is listed in Clutch's Top 10 Mobile App Development Companies in Boston
Top Mobile App Developers in 2019 by TopDevelopers

We have offices in New York, NY, Boston, Massachusetts and Nashua, New Hampshire. Our company is staffed by experienced industry veterans and emerging talent alike. Over 300 project managers, engineers, app designers, and programmers from around the globe work for our mobile app agency. As one of the largest mobile app design companies in the world, no project is too big or too small for us. We have the bandwidth to tackle multiple complex projects simultaneously.

Clients choose Zco over other app design agencies because of our experience and versatility. We are a custom mobile app development company that offers clients extensive technical proficiencies and the ability to produce software that meet their requirements regardless of a project’s scale. These reasons and more are why we’re a leader among top app development companies.

Featured Client Projects

Our Development Process

Our account executives and project managers work closely with you to identify the desired functionality of your software and prepare a detailed estimate for you. An NDA is signed, guaranteeing that you and you alone own the project’s intellectual property.

Should you move forward, our team delivers iterative builds for your feedback until development concludes. All the project’s assets remain yours and the source code is signed over to you upon final payment. This streamlined and efficient production cycle produces high quality software precisely tailored to your specifications.

Zco is a leading American mobile application development firm with a unique software development process

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How much does it cost to Zco create an app?- Download eBook

How much does making an app cost?

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Frequently Asked Questions

Zco Corporation was founded by John Olapurath in 1989. Zco Corporation is a company of over 300 talented programmers, engineers, artists, and project managers.

Zco is headquartered in Nashua, New Hampshire. We have offices in New York, NY and Boston, Massachusetts as well.

Zco's hourly rate for app development is less than $60 per hour. An average app project might cost about $30,000, with functionality and complexity raising or lowering the price accordingly.

Zco works strictly as a developer for hire. We do not participate in any revenue splits or percentage agreements. That means while you shoulder development costs, you own your app free and clear, including source code and intellectual property.

One of the very first steps in the app development timeline is the signing of a non-disclosure agreement (NDA) by both Zco and you, the prospective client. This protects both parties, since we’ll be working very closely together. Once it’s finished, the app and all its source code and intellectual property belong to you.