Total Network Inventory: Professional PC audit and network inventory management software - fits best for a for companies of all sizes. Free for 60 days.
Radware Alteon - Alteon is Radware’s next-generation application delivery controller (ADC) and the only network load balancer that guarantees application SLA.
Network Inventory Advisor - Network Inventory Advisor audits all network software and hardware simply and efficiently
Cobbler - Cobbler is a Linux installation server that allows for rapid setup of network installation...
Lansweeper - Lansweeper discovers Windows, Linux and Mac machines in your network.
Cisco Meraki - Meraki provides Cisco-based, cloud-controlled Wi-Fi and routing and security products for distributed wired and wireless networks.
Nmap - Nmap Free Security Scanner, Port Scanner, & Network Exploration Tool. Download open source software for Linux, Windows, UNIX, FreeBSD, etc.