Complex sentence: Traffic School by Improv was recognized on Inc. magazine's list of Fastest Growing Private Companies in America from 2012 until 2016, and identified by the Los Angeles Business Journal as one of the top 100 fastest growing private companies in 2015.
Split into simpler sentences: Traffic School by Improv was recognized on Inc. magazine's list of Fastest Growing Private Companies in America from 2012 until 2016. It was identified by the Los Angeles Business Journal as one of the top 100 fastest growing private companies in 2015.