Zend Technologies is a software company known for developing tools and solutions for the PHP programming language. Founded in 1999, it played a significant role in the growth and popularity of PHP by creating the Zend Engine, which is the core of the language. In addition to the Zend Engine, the company offers various products, including the Zend Studio, an integrated development environment (IDE) for PHP developers. Zend Technologies also provides cloud services and support for building and deploying applications, helping businesses leverage the power of PHP in their projects.