Agavi

Agavi is a powerful, scalable PHP5 application framework that follows the MVC paradigm. It enables developers to write clean, maintainable and extensible code. Agavi puts choice and freedom over limiting conventions, and focuses on sustained quality rather than short-sighted decisions.

AuraPHP

In a world of monolithic frameworks, the Aura project provides independent library packages for PHP 5.3+. These packages can be used alone, in concert with each other, or combined into a full-stack framework of their own.

CakePHP

A PHP framework focused on convention over configuration paradigm, aiming to make any type of websites a fun task while empowering developers with simple yet powerful and extensible tools.

Frapi

FRAPI is a high-level API framework that puts the "rest" back into RESTful. Use it to power your web apps, mobile services, and legacy systems. FRAPI won the best product movers award today at PHPTek after a vote of confidence by the community.

MediaWiki

It is now used by several other projects of the non-profit Wikimedia Foundation and by many other wikis, including this website, the home of MediaWiki.

OpenVBX

A modern, flexible business phone platform. We started OpenVBX to give you a boost, so you could delight your customers with a phone system that works and feels great. We open-sourced OpenVBX so you could hack, skin, and integrate it with whatever you're already running.

Twilio

Twilio is a web-service API that lets you use your existing web languages and skills to build voice and SMS applications.

Pear

PEAR is a packaging and distribution system for reusable PHP components.

Voce

Voce is an award-winning marketing and communications consultancy. From the personal approach that's applied to every project to hiring bright people who are always thinking of new and better ways to do thing, Voce lives up every day to its mission to be "communication architects."

Web2Project

Web2Project is a Free Open Source business-oriented Project Management System (PMS) built for the future. Further, we know there is no "one-size fits all" project management solution and do not intend to create one.

Zend

Extending the art & spirit of PHP, Zend Framework is based on simplicity, object-oriented best practices, corporate friendly licensing, and a rigorously tested agile codebase. Zend Framework is focused on building more secure, reliable, and modern Web 2.0 applications & web services, and consuming widely available APIs from leading vendors like Amazon, Google, Microsoft, and Yahoo!, as well as API providers and cataloguers like StrikeIron and ProgrammableWeb.