https://techcrunch.com/2020/09/03/episerver-acquires-optimizely/ > Episerver is announcing that it has reached an agreement to acquire Optimizely for an undisclosed sum. > Optimizely was founded in 2009 by Dan Siroker and Pete Koomen. It became synonymous with A/B testing, subsequently building a broader suite of tools for marketers to experiment with and personalize their websites and apps, with more than 1,000 customers including Gap, StubHub, IBM and The Wall Street Journal.