


Zellis
Software Development • Bristol, England, United Kingdom • 1001-2000 Employees
Company overview
| Headquarters | 740 Waterside Drive, Aztec West, Almondsbury, Bristol, England BS32 4UF, GB |
| Phone number | +448000420315 |
| Website | |
| SIC | 737 |
| Keywords | Payroll, Workforce Management, HR, Managed Services, HCM, AI |
| Founded | 1963 |
| Employees | 1001-2000 |
| Socials |
Key Contacts at Zellis
Kimberley Blain
Executive Assistant to Chief Executive Officer, Zellis business unit
Zellis Email Formats
Zellis uses 2 email formats. The most common is {first name}.{last name} (e.g., john.doe@zellis.com), used 76.1% of the time.
| Format | Example | Percentage |
|---|---|---|
{first name}.{last name} | john.doe@zellis.com | 76.1% |
{first initial}.{last name} | j.doe@zellis.com | 23.8% |
About Zellis
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 and 2025. Our flagship solution, Zellis HCM Cloud, 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).
Zellis revenue & valuation
| Annual revenue | $284,200,000 |
| Revenue per employee | $193,000 |
| Estimated valuation?This valuation is estimated based on industry average for the Software Development industry and current estimated revenues | $909,300,000 |
| Total funding | No funding |
Employees by Management Level
Total employees: 1001-2000
Seniority
Employees
Employees by Department
Zellis has 951 employees across 18 departments.
Departments
Number of employees
Funding Data
Zellis has never raised funding before.
Zellis Tech Stack
Discover the technologies and tools that power Zellis's digital infrastructure, from frameworks to analytics platforms.
Marketing automation
Security
Form builders
JavaScript libraries
Analytics
Analytics
Font scripts
JavaScript libraries
Analytics
Web servers
Webmail
Miscellaneous
Frequently asked questions
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