Prism Valuation provide comprehensive independent valuation and risk analysis services for OTC Derivatives and Structured Products to financial institutions to aid in regulatory compliance, and their clients improve understanding of risk. Simply put they are quants.
Platform3 built a simple portfolio site for Prism in 2011. They have since moved their devleopment in house but what would else would you expect from a highly skilled set of engineers and PHDs. The Prism team was a real pleasure to work with!