The Wi-Fi Alliance is a global, nonprofit industry trade association with over 200 member companies. The Wi-Fi Alliance is devoted to promoting the growth of wireless LANs (WLANs). One
of the Wi-Fi Alliance’s primary tasks is to ensure the interoperability of WLAN products by providing certification testing. During the early days of the 802.11 standard, the Wi-Fi Alliance further defined it and provided a set of guidelines to assure compatibility between different vendors.
Products that pass the Wi-Fi certification process receive a Wi-Fi Certified certificate: