PHPEdit development started as personal project of Sébastien Hordeaux in 1999. Distributed freely over the Internet, the project's community grew to more than 200,000 users. During this period of growth, Sébastien met John Knipper, Bertrand Dunogier and Daniel Lucazeau. In April 2004 they helped him create WaterProof SARL.
In July 2004, the first commercial version of the IDE was sold and since, hundreds of companies have adopted PHPEdit as their main development environment for PHP.
In November 2004, Bastien Hofmann joined the company to speed up PHPEdit development.
In April 2005, Jean Roussel joined the company to reinforce the PHP development department and develop a new solution called wIT, a PHP-based issue tracker.