Hi Jacques, we have pulled together the same data in terms of adoption for the top 100k and top million and they look very similar.
A great source for this data if you are looking to dive into it is http://trends.builtwith.com/analytics/Optimizely
A great source for this data if you are looking to dive into it is http://trends.builtwith.com/analytics/Optimizely
If it holds there too that would be absolutely awesome.
The thing is we are talking about .5%-3% share here, and the top 100 would be statistically meaningless. What you really want is revenue, and I am sure that is private information.
VWO advertises about 2500 customers and Optimizely claims 4000.
Frankly, I'd be more interested in how the Google numbers were calculated. It is now so integrated with Google Analytics it is pretty hard to detect.
If I were a betting man, I'd guess their revenue run rate is around $10M.
If the representation in the top 100 and top 1,000 would be percentage wise just as high as in the top 10,000 then I believe that would be an extremely powerful tool in optimizely's sales arsenal.
Selling to 'the establishment' serves as a very strong validation, especially because there may be a ceiling at which it is easier/better to roll your own A/B testing. If optimizely can prove that there is no such ceiling (that for instance, even Amazon would be better off to use optimizely than to roll their own) you can expect their value to skyrocket.
https://www.optimizely.com/customers
also see VWO:
http://visualwebsiteoptimizer.com/customers.php
You are asking for data that is publicly available.