 LAWRENCEVILLE, N.J.--BUSINESS WIRE--- SMMC--Billtrust, a leading provider of cloud-based software and integrated payment processing solutions, along with South Mountain Merger Corp. Nasdaq: SMMC South Mountain, a publicly traded special purpose acquisition company, today announced financial highlights for Billtrust for the three- and nine-month periods ended September 30, 2020. Flint Lane, Founder and CEO of Billtrust, commented, I am very pleased with our financial results, in particular our 