Key German Deal: Acquisition of Diamant Software by Hg
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Diamant Software, a leading German developer of financial and management accounting software for mid-sized businesses and public sector organizations, has entered a new era through a majority stake acquisition by Hg, Europe's largest dedicated software investor. Lincoln International acted as sell-side advisor. [1][2][3]
Deal Highlights and Strategic Goals
On November 10, 2025, Hg completed the investment, partnering with Diamant Software’s founding Semmerling family, who remain significant shareholders. While financial details were not disclosed, HgCapital Trust plc contributed approximately £19 million to the deal as part of Hg’s overall investment. The transaction is set to accelerate Diamant’s transformation from a family-run business into a cloud-enabled market leader, with innovation and customer service at its core.[2][3]
Diamant Software, headquartered in Bielefeld and founded in 1980, provides accounting, controlling, and group accounting solutions that serve more than 100,000 users. Its technical expertise and reputation for quality were key drivers that attracted intense interest from both strategic and financial investors over the years.[1][2]
Hg’s Strategy and Vision
Hg focuses on buy-and-build in the European software sector and sees Diamant Software as an ideal platform for further organic and inorganic growth, including potential acquisitions to expand product lines and enter new market segments. Hg brings deep know-how scaling companies in the Office of the CFO space and aims to help Diamant accelerate development on cloud, AI-powered solutions, and strengthen its partner network.[3][4][5]
What’s Next for Diamant Software
For customers, partners, and employees, the acquisition means continuity and dependability alongside new opportunities for cutting-edge innovation in accounting software. Diamant’s founding family and Hg have emphasized maintaining the entrepreneurial spirit and customer-first values that underpinned the company’s success for the past 45 years.[2][3]
The strategic partnership sets the stage for Diamant Software to strengthen its leadership position in Germany’s mid-market finance technology, while advancing cloud and AI capabilities to meet the evolving needs of European businesses.[4][3]
This transaction will be closely watched in the European SaaS and financial software community as an example of founder-led firms joining forces with specialist investors to drive long-term growth and innovation.[5][3][2]
