Wi-Fi Alliance http://www.wi-fi.org/about_overview.php
The Wi-Fi Alliance is a global, non-profit organization that aims to ensure that there is a single, worldwide standard for high-speed wireless local area networking. It has more than 300 members from more than 20 countries, including widely recognized telecommunications providers and equipment makers, like Cisco and Dell: Wi-Fi Alliance Members http://www.wi-fi.org/our_members.php
The Wi-Fi Alliance develops tests and conducts Wi-Fi certification of wireless devices that implement the universal IEEE 802.11 specifications. It also aims to provide users with information they about various Wi-Fi systems.