Zend Technologies was founded by
Andi Gutmans and
Zeev Suraski who, along with other Israeli graduates of the
Technion, the Israel Institute of technology, further developed
PHP after its initial creation by
Rasmus Lerdorf. The name Zend is a combination of Suraski's and Gutmans' forenames, Zeev and Andi. In 1997, Gutmans and Suraski rewrote the parser of PHP-FI, originally written by Lerdorf, resulting in PHP 3. In 1998 they redesigned that parser completely and named it the
Zend Engine. PHP 4 is based on the first version of the Zend Engine. In 1999, their company Zend Technologies was formally established and received initial funding from the
Israeli venture capital funds Platinum Neurone Ventures and Walden Israel. Business executive Doron Gerstel was recruited to head the company as
CEO. In August 2006 Zend raised $20 million in a Series D funding. In February 2009, Zend's co-founder
Andi Gutmans was appointed as CEO, after serving as the company's VP of research and development. Zend also recruited Mark Burton, who had served as EVP of worldwide sales at
MySQL, as executive chairman. In October 2015,
Louisville, Colorado-based software developer
Rogue Wave Software acquired Zend. Shortly after being acquired, co-founder Andi Gutmans left the company in February 2016. In January 2019, Rogue Wave Software was acquired by Minneapolis, Minnesota-based application software developer Perforce. ==Products==