Not sure if you were looking for other options? (Your post caught my eye - that msft had a data virtualization location)
I'm not affiliated with them, however I did see a presentation by them.
http://www.delphix.com/products/overview/
I thought it was interesting, and they seem to feel they are one of the early pioneers of it.
You should contact them for a free demo for your company.
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...0.05 points per day since registration... slowly crawl up to 1 pt per day hopefully 😀