Zellis built ZellisONE HR, a unified, secure, and AI-enabled platform designed to help HR teams spend less time on paperwork and more time creating impact.

Zellis helps organisations unlock better outcomes by creating exceptional experiences for their people. As the UK and Ireland’s leading provider of HR, pay, workforce management (WFM), and benefits solutions, we put employees at the heart of every solution. Our tools give teams the insights, flexibility, and support they need to perform at their best. By removing barriers and embracing innovation, we empower organisations to reimagine what’s possible. Together, we Unlimit What’s Next for both people and performance. In 2025 we brought together the very best of Zellis, elementsuite, and Hastee into a seamless experience, providing a single, coherent system for the modern workplace. Together, we deliver an adaptable, best-in-class, end-to-end solution that helps customers achieve smarter, faster, and more confident HR, WFM, and Pay outcomes. At Zellis we understand the urgency and scale of modern workforce needs, and we support the full employee lifecycle. Our solutions help pay 1 in 7 of the UK and Ireland’s working population. Zellis was named Payroll Software Supplier of the Year at the Global Payroll Awards 2024, 2025 and was Highly Commended in 2026. Our flagship solution, Zellis HCM AIR, has been recognised as Payroll Software of the Year (CIPP 2020, 2021, 2024) and has won the Payroll & HR Software Product Award (The Rewards 2019, 2021, 2023, 2024).