We are, first and foremost, PHP programmers. We’ve been using PHP as our main development language for over a decade and have a huge wealth of experience and expertise. Our own proprietary framework is built in PHP.
The main building blocks of any web-based application are HTML (or XHTML) for the content and document semantics, and CSS for the presentation. All of our CSS is hand-written, as is most of our HTML, with the focus on standards compliance and accessibility.
We use the Smarty templating engine to help us maintain a good separation between business and presentation logic (vital, even in a small company like ours) and for its simplified language structure which greatly speeds up development.
We are also experienced in reading and generating data using most of the common data-exchange formats currently in use, e.g. XML, CSV, etc.