Personio has acquired Circula, adding spend management to a platform used by more than 16,000 companies. The German HR and payroll company says it aims to bring HR, payroll and spending on employees together. Circula’s DATEV connection and existing integration will remain, according to its co-founder.
How did the companies reach this deal?
Personio was founded in Munich in 2015 and provides HR and payroll software. It serves companies employing 1.6 million people, according to the supplied account. Circula, a German spend management platform, has worked with Personio for several years.
The companies already serve many customers together, and hundreds use an existing connection between Circula’s spend management service and Personio’s HR platform. That connection synchronises employee data, Circula co-founder Nikolai Skatchkov said. The acquisition builds on an established relationship rather than introducing the platforms to one another for the first time.
What is changing for customers?
Personio aims to connect HR, payroll and spend management in one platform. In practical terms, the companies say expenses could flow into payroll through payroll integrations and Personio’s own payroll engine. The account does not specify when that arrangement will be available or how it will work for each customer.
Skatchkov said the DATEV connection, the existing integration and Circula’s expertise would remain. The stated continuity addresses a central operational question for customers already using the services together. The announcement does not set out whether contracts, pricing or product access will change.
Why combine payroll and spending?
Personio chief executive Hanno Renner said customers frequently ask for spend management, describing it as complex in Europe because rules vary across borders. The supplied account says Personio brings payroll compliance expertise, while Circula has developed expertise in expenses and benefits. Combining the services is intended to link those areas of employee-related spending.
Skatchkov identified a specific technical and tax issue: expense-side tax logic and payroll-side tax logic have historically been built by separate companies. The acquisition is presented as a way to design HR, spending and payroll together. It does not establish that every tax process has already been unified.
What does Circula bring to the platform?
More than 3,000 European mid-market businesses use Circula for expenses, corporate cards, accounts payable and tax-optimised benefits, according to the account. Those functions broaden the set of services Personio can offer around workforce administration. No acquisition price or deal terms are given in the supplied material.
Circula raised a €15 million Series A in 2025. The article also describes continued investment in adjacent European software during 2026, citing almost €500 million across selected rounds. Examples include €200 million for Skello, €129 million for Factorial, €37 million for WorkFlex and €30 million for Moss; these figures provide market context, not terms of the Personio deal.
What remains unclear after the acquisition?
The announcement leaves open how quickly the products will be brought together and whether customers will see changes to their workflows. It also does not describe the acquisition’s financial terms or any changes to Circula’s products beyond the stated continuity. Personio’s goal of a combined platform is an ambition, rather than a completed product change described in the material.
The next useful details would concern product availability, payroll integrations and the operation of the retained DATEV connection. Customers will also need clarity on any changes to service arrangements. For now, the companies’ stated position is that the existing integration and Circula’s expertise stay in place.