SnowSoftware - Snow Software are suppliers of Software Asset Management products and help optimizing licensing & minimizing compliance risk.
iperf - A TCP, UDP, and SCTP network bandwidth measurement tool
ManageEngine AssetExplorer - ManageEngine AssetExplorer is a web-based IT Asset Management software that helps you monitor and manage assets in your network.
JPerf - This project gives a better UI and new functionalities to the initial JPerf 1.
NetSupport DNA - IT Asset Management
NetStress - NetStress is a user-friendly benchmarking tool that is mostly used by networking professionals to measure the network performance of both wired and wireless connections.