We have added a comprehensive list of software for backtesting/optimalization: http://quantpedia.com/Links/Backtesters We have a good response to it so I believe it will be useful for you ...
My impression is that CQG is a little behind in that space. Does anybody have meaningful experience with CQG for system trading? Their API is rather expensive, so there must be a lot of pros trading thru that.
Why is TradersStudio not included, it's more powerful than some of the software in your list. Here are three good links for more on TradersStudio. Why TradersStudio TradersStudio Tutorials TradersStudio Blog
Why? Because you cannot even perform tick level Backtests and you do not get currency conversions right, somewhat of a basic requirement for anyone wanting to test currency based strategies.
What do you do and what do you offer? Nothing in your About page and all your data and broker vendors are just external third party providers, a list even a high schooler can assemble. Seriously, I am curious what are you actually selling?
I described it more here: http://www.elitetrader.com/et/index...ia-of-quantitative-trading-strategies.290913/