Do know a group of companies that have all the underlying tech they use internally but haven't pulled it in to a product, it's fed out to a fund. Currently using a forex system that was internally developed pulling down 1million datapoints per day in to SQL, processing in to OHLC, and then run strategies over it as a proof of concept before pushing out to quants, faster development cycle. If there are any requirements can see what they can do, the architects used to work for banks and oil company trading desks, they can usually whisk something up overnight if there's a need.