IRIS Software Group

IRIS Software Group is one of the United Kingdom's largest privately held software companies. It develops critical business software for accountancy, payroll, HR and education, and its products are used by more than 100,000 organisations across 135 countries. The company's engineering work spans payroll processing, compliance and business administration software, as well as AI-powered automation and data capabilities applied across its product lines.

The reach of these systems is substantial. IRIS payroll software processes pay for one in every six UK employees, and 91 of the top 100 UK accountancy firms use its accountancy solutions, which support core accounting and practice operations. Its education software, covering school administration and compliance, supports more than 12,000 schools across the UK. HR software rounds out the portfolio, handling workforce administration and compliance.

The company is privately held and states a focus on combining industry expertise with automation to help customers streamline operations and maintain compliance. It continues to expand its global footprint beyond its British base.