These two companies consistently beat expectations when they report their financial results.Earnings season for the quarter that ended in September is now underway, and it's off to a strong start. According to Forbes, 79% of the S&P 500 (SNPINDEX: ^GSPC) companies that have reported so far have beaten expectations. Tech companies Duolingo (DUOL 0.53%) and Bill.com (BILL -0.38%) are scheduled to report their latest results on Nov. 6 and Nov. 7, respectively, and they each have a track record of consistently ...