Personio acquired Berlin-based Circula on October 6, 2026, its largest deal yet, to combine HR, payroll and spend management in one European platform.
Key Takeaways
- Personio announced the Circula deal on October 6, 2026; the price was not disclosed.
- Circula serves 3,000+ European mid-market firms and about 250,000 users.
- The two companies share 500+ customers after six years of partnership.
Lead
Personio, the Munich-based HR software unicorn, has agreed to acquire Circula, a Berlin spend-management company, in what it calls the largest acquisition in its history. Neither side disclosed a purchase price or deal structure. Circula will continue under the name "Circula by Personio", and its team joins Personio.
The deal gives Personio a product it has so far only integrated: expense reimbursement, travel costs, accounts payable, corporate cards and tax-optimised employee benefits. Personio says this makes it the first European vendor to sell HR software, payroll and spend management in a single product.
Why Did Personio Buy Circula?
Personio bought Circula because spend management is among the features its customers request most, and building it for Europe is slow. Chief executive Hanno Renner described it as a capability that is "complex to get right in Europe", where tax rules differ by country and accounting software is fragmented.
This is a strategic purchase, not an acquihire. Circula brings a live product, 3,000+ customers and German tax expertise, which was the company's focus from its founding in Berlin in 2017 by Nikolai Skatchkov and Roman Leicht. Its clients include Aston Martin, DATEV, Securitas and tonies.
The commercial logic is cross-selling. Personio counts 16,000+ customers employing 1.6 million people, and each could now be offered cards and expense tooling on top of payroll. Every euro of employee spend that moves onto the platform raises revenue per customer without the cost of finding new ones.
What Is Circula and How Was It Funded?
Circula is a spend-management platform aimed at mid-sized European companies, with particular strength in German tax compliance. Its most recent funding was a €15 million extended Series A in 2025, led by existing investors including Alstin Capital, Capnamic Ventures, Peak Capital, Wenvest Capital and Storm Ventures, with CIBC Innovation Banking also taking part. Personio itself took a stake in Circula in 2022.
That history matters. Personio was a shareholder and an integration partner before it became the buyer, so it had six years of customer data on how well the product fit. A purchase after a long partnership carries less integration risk than a cold acquisition, and it likely helped Personio's negotiating position, since Circula's last round was modest by growth-stage standards.
What Happens to Circula's Customers?
Existing customers keep their current setup. Skatchkov said the DATEV integration stays, along with the existing integrations and the expertise Circula has built up. Circula will remain available as a standalone product for companies that do not use Personio's HR platform, while integration deepens for the 500+ joint customers, among them Everphone, About You and Westwing.
The standalone commitment limits churn at the start but sets up a question about product direction. Companies buying Circula without Personio's HR suite will watch whether new development favors joint customers. Standalone promises tend to last through the first year and get harder to justify as the bundle becomes the main selling point.
How Does This Fit Personio's Strategy?
The deal is Personio's second acquisition of 2026, after the recruiting AI startup aurio. Together they show a company filling gaps in its suite by acquisition, not building each module internally. Personio was last widely valued at $8.5 billion, a figure set during the 2021 funding peak and not publicly revised since.
Competition is the other driver. Spend management is already crowded with specialists such as Pleo, Moss and Payhawk, and with accounting platforms adding card products. HR vendors including Rippling have pushed into spend as well. Bundling spend with payroll is a defensible position only if finance teams accept one vendor for both. Many mid-sized firms prefer to keep expense tooling separate from HR, and Personio has to show the combined product is better than the sum of its parts.
Outlook
Personio now has the broadest European suite of any HR-led vendor, and the integration will test whether customers value it. The next checkpoints are the rebrand to Circula by Personio, the first joint product releases, and whether Personio discloses revenue or customer-adoption figures for the combined offer. Additional acquisitions in adjacent areas such as benefits or payments are plausible given the pace set this year. The undisclosed price leaves open how much Personio paid for revenue and how much for time saved.

