WordPress

San Francisco, California, United States · Founded 2003

1001-5000 employees

Sourced & current · updated Jun 8, 2026Website

WordPress is an open-source content management system (CMS) powering over 40% of websites globally, with advertising capabilities through plugins and WordPress VIP.

Where they sit

Stack tier: Infrastructure & Data (B)

Ad ServerProgrammatic Platform

Dominant CMS platform enabling advertising for millions of publishers