Homedale - With Homedale you can search for Wi-Fi / WLAN Access Points and monitor their signal strength.
OneLogin - On-demand SSO, directory integration, user provisioning and more
Vistumbler - Vistumbler is a wireless network scanner for Windows Vista and Windows 7. Features:
Teramind - Teramind provides a user-centric security approach for monitoring.
Waircut - Free network audit app
TeamPassword - TeamPassword helps you manage and share access to the apps, services, and tools your team needs to keep projects moving.