At IBM we have a system that measures an offering's UX based on specific criteria. Does your company produce similar reports before a major release?
Yes, but I suspect this is something that varies from organisation to organisation, and from product to product (hopefully not).
Generally if any UX processes are involved, hopefully there will be an assessment of the usability (if not the entire experience) of the product in the form of either task completion analysis (for a new product) or benchmark against existing baselines.
Alternatively, if the product is externally reviewed, then there will be some metrics or reports from the external source that can be gathered and analysed (e.g. traffic or review ratings).
UPDATE (based on additional comments):
Rather than measuring and benchmarking against an absolute value, one approach that you might be interested in is a method I developed for one of the companies that I worked at.
The process involves defining different types of experience that the product or service is aiming for (e.g. Usable, Useful, Engaging, Delightful) and then comparing that to the processes used to achieve the outcome (e.g. Research, Design, Prototype, Test).
So for a product that is designed to just be usable, the minimum process required might be to do some usability testing. For a product that needs to be delightful, more processes would be required.
Therefore, each product gets a check against the experience that it is aiming for and the processes used to achieve the outcome. The benchmark would be to provide the minimum amount of process required to achieve a particular outcome, and obviously the more you can do the better.