NetVizura NetFlow Analyzer - NetFlow Analyzer is a solution for bandwidth monitoring and traffic analysis. It helps with traffic investigation, analysis and reporting
FastNetMon - FastNetMon is a very fast DDoS analyzer with sflow/netflow/mirror support.
Zabbix - Track, record, alert and visualize performance and availability of IT resources
Arbor - Easily manage product development
Nfsen - NfSen is a graphical web based front end for the nfdump netflow tools that allows you to:
Corero - Real-time, high-performance, automatic DDoS attack protection, on-premis and in the cloud, with comprehensive attack visibility, analytics, reporting.