Optimizely Raises $57M

San Francisco-based Optimizely, which develops web A/B testing and optimization software, said today that it has raised $57M in a Series B funding round. The company said the funding was led by Andreessen Horowitz, and also included Benchmark Capital and Bain Capital Ventures. The company has now raised $88M in total. Optimizely-led by Dan Siroker-said it saw triple digit, year-over-year growth in annual revenue since 2010, but did not disclose any actual financials. More information »