javascript development for powerful front-end and back-end solutions

Develop once, run everywhere

Greater Than Zero, Inc. is a software development company based in New York City. We develop custom software solutions for clients based in and around New York City. Since 1993, GTZ has delivered software development services and solutions to medium and small businesses across many industries and market sectors including: financial services, insurance, healthcare, legal, art management, building management and NYC's Greenmarket.

Most recently GTZ has focused on fullstack javascript development with mongodb, express, angular, nodejs and sails and contributes to the github community. We are committed to contributing to local nodejs, angularjs and mongodb meetups and a beta of the MEANS fullstack seed repo will be available August 2014.

We believe that our MEANS seed project will be the most complete seed for the fullstack of mongodb, express, angular, node and sails. The ability to create a REST api easily supporting real-time apps through socket-io is our forte. We also supply legacy support for firebird and Delphi client server applications. All our new developments are responsive using twitter's bootstrap as our css platform.


We specialize in Angular.js which is a client-side JavaScript framework developed and used internally by Google. It provides DOM-based templating with declarative two-way data binding. GTZ Professional Services can develop, deliver, and support cutting edge JavaScript applications built with Angular.js and related technologies such as HTML5 and CSS3. Through Angular we provide advanced data visualization capabilities using simple HTML markup. Develop once, run everywhere

Server Side

Node.js is a platform built on Chrome's JavaScript runtime for easily building fast, scalable network applications. Node.js uses an event-driven, non-blocking I/O model that makes it lightweight and efficient, perfect for data-intensive real-time applications that run across distributed devices.

Build rich interactive experiences.

Produce highly interactive applications in a fraction of the time using the latest open web standards. HTML5 brings substantial benefits to the enterprise by enabling a write once, deploy everywhere strategy.


We now specialize in the world's best NoSql database, Mongodb. From their website "MongoDB is the leading NoSQL database, empowering businesses to be more agile and scalable. Fortune 500 companies and startups alike are using MongoDB to create new types of applications, improve customer experience, accelerate time to market and reduce costs."


Now providing mobile apps on Apple and Android. Over 90% look and feel of native apps at a fraction of the cost.


Welcome to the home of real-time apps. Real-time apps made cross-browser & easy with a WebSocket-like APIWatch so all browser will automatically display the applications most current view of the database. Call for a demo of this amazing technology


All our apps make use of Twitter Bootstrap, the most popular front-end framework for developing responsive, mobile first projects on the web.