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With over 50 years' experience and almost 2,000 employees, Zellis provides payroll, HR and managed services to UK and Ireland based companies with over 500 employees. We are the largest business of this nature in the UK counting a third of the FTSE 100 as customers, serving over 5 million of our customers' employees and processing in excess of 60 million payslips a year.
We are also the people behind ResourceLink, the award winning Payroll and HR software.
We are also the people behind ResourceLink, the award winning Payroll and HR software.
Overview
Location
United Kingdom, England, Bristol
Employees
1001-5000
Founded date
1963
Investors 1
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Mentions in press and media 8
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| Jun 17, 2025 | Zellis Acquires Hastee | Zellis Group, a Bristol, UK-based provider of AI-enabled HR, workforce management, payroll and benefits, acquired Hastee, a London, UK-based provider of a financial wellbeing platform. The amount of the deal was not disclosed. The acquisiti... |
| Jul 16, 2024 | Public Sector Productivity Hampered by Payroll & HR Software Limitations | New research reveals that nearly half of all public sector organisations across the UK and Ireland are wrangling with payroll and HR systems that are not fit for purpose. Forty-eight percent (48%) are having to use technical or manual worka... |
| Jun 15, 2023 | Ransomware gang lists first victims of MOVEit mass-hacks, including US banks and universities | Clop, the ransomware gang responsible for exploiting a critical security vulnerability in a popular corporate file transfer tool, has begun listing victims of the mass-hacks, including a number of U.S. banks and universities. The Russia-lin... |
| Jun 9, 2023 | BBC, British Airways, Boots hit with hackers’ ultimatum after suffering MOVEit supply-chain attack | Image: SomYuZu/Adobe Stock British Airways, BBC and Boots have all been served an ultimatum after they were hit with a supply-chain attack by the ransomware group Clop. In a post made available on their dark web portal, the cybercrime group... |
| Jun 6, 2023 | Cyber Attack Targets UK HR Provider — BBC, Boots, British Airways Impacted | The cyber gang has been linked to the MOVEit Transfer zero-day vulnerability exploit, according to a statement by Microsoft Threat Intelligence on Monday. Among the firms understood to be affected, Zellis – a UK payroll and HR software prov... |
| Jun 6, 2023 | Mass exploitation of critical MOVEit flaw is ransacking orgs big and small | Enlarge Getty Images reader comments 48 with Organizations big and small are falling prey to the mass exploitation of a critical vulnerability in a widely used file-transfer program. The exploitation started over the Memorial Day holiday—wh... |
| Jun 5, 2023 | Microsoft says Clop ransomware gang is behind MOVEit mass-hacks, as first victims come forward | Security researchers have linked to the notorious Clop ransomware gang a new wave of mass-hacks targeting a popular file transfer tool, as the first victims of the attacks begin to come forward. It was revealed last week that hackers are ex... |
Reviews 0
FAQ about Zellis
When was Zellis founded?
Zellis was founded in 1963.
What has the press written about Zellis?
Parsers VC has collected 8 articles mentioning Zellis, among them “Zellis Acquires Hastee” (Jun 17, 2025) and “Public Sector Productivity Hampered by Payroll & HR Software Limitations” (Jul 16, 2024).
Is Zellis still active?
Yes, Zellis is active; its latest activity on Parsers VC dates from Feb 16, 2026.