IRIS Software, a provider of business-critical software and services, completed the acquisition of AccountantsWorld, a developer of cloud-based payroll and accounting software. Financial terms were not disclosed. “We are excited to welcome AccountantsWorld into the IRIS family as we continue to expand our North American presence to empower accounting firms to manage and grow their practices more efficiently and become better advisors to their clients. The AccountantsWorld founders pioneered cloud technology for accountants, and the holistic suite of cloud-based solutions they have created are an exceptional addition to our offerings. Together they help accountants transform their practices with solutions that drive automation, efficiency, and productivity, and allow them to introduce new and value-added services," Elona Mortimer-Zhika, IRIS Software CEO.