Zellis

About Zellis

Zellis is a prominent provider of payroll, HR, and managed services in the UK and Ireland, with a history dating back to 1963. Originally known as NGA Human Resources UK & Ireland, the company rebranded to Zellis in 2019, emphasizing its commitment to technological innovation while leveraging decades of expertise. Zellis serves nearly 1,000 customers, processing payroll for three million individuals each month and managing £26 billion annually.