Specialist software platforms serve vertical markets such as healthcare, nonprofits, retailers, accountants and lawyers with software-as-a-service (SaaS) applications that are core to operating those businesses. In most verticals, payment processing is a necessary component for any SaaS specialist’s offering. However, payment processing, which provides a SaaS company with revenue and an opportunity to build loyalty with their merchant, is not their core competency. Rainforest makes payment processing available to SaaS platforms on a white-label basis. The company’s technology was cre...