BTRS Holdings Inc. (Nasdaq: BTRS) is the publicly traded parent company of Billtrust, a B2B accounts receivable automation and payment solutions provider. BTRS completed its business combination with South Mountain Merger Corp., a SPAC sponsored by South Mountain Management, in January 2021, following the blank-check company's IPO in 2020. The combined entity operates in the financial technology sector, delivering cloud-based order-to-cash software and integrated payment processing to commercial enterprises across North America. The 10-K filed on March 24, 2021 represents the company's first annual report as a publicly traded entity following the completed de-SPAC transaction. Sign up at SpacDesk for complete filings, sponsor profiles, and deal timelines across the SPAC universe.