Italian group TeamSystem officially announced on April 8, 2026, the simultaneous acquisition of ACD in France and DIA Yazılım in Turkey, two operations marking a turning point in the ERP publisher’s internationalization strategy from Pesaro (ICT Business).
The targets: two well-established local specialists
ACD, founded over 40 years ago and led by Éric Choteau-Laurent, is a publisher of accounting, payroll, and collaborative management software based in Tours. It claims approximately 3,500 accounting firm clients and 30,000 users, with revenue of around €37 million and over 300 employees (Salesdorado).
DIA Yazılım, based in Turkey, publishes a cloud ERP covering accounting, CRM, electronic invoicing, and e-commerce. The publisher claims approximately 15,000 client companies and about a hundred employees (ICT Business).
An acquirer on the rise
TeamSystem, founded in 1979 in Pesaro and led by Federico Leproux, crossed the €1 billion revenue milestone in 2024, growing 19% year-over-year, with over 2.5 million clients and 5,000 employees (Data Manager Online). Backed by Hellman & Friedman and a €600 million investment from Silver Lake in 2023, the group has deployed over €500 million in acquisitions over the past two years.
In France, ACD is not TeamSystem’s first operation. The group has already acquired Clémentine (online accounting, July 2024), ClicData (business intelligence, July 2025), and Sellsy (CRM and invoicing, September 2025). With ACD, TeamSystem strengthens its grip on the French chartered accountants’ ecosystem—a strategic market ahead of the widespread mandatory electronic invoicing in France.
What this means for businesses
For CIOs and CFOs of European SMEs, this dual acquisition has concrete implications.
For accounting firms, the 3,500 ACD client firms (which in turn manage over one million French companies) could benefit from TeamSystem’s technological edge in electronic invoicing. Italy imposed fatturazione elettronica as early as 2019, and TeamSystem is a reference player there. Federico Leproux indeed emphasizes that “the French context presents strong similarities with what Italy experienced” (ACD press release).
For the French ERP market, TeamSystem’s strategy reshapes the landscape. By combining Sellsy, Clémentine, ClicData, and ACD, the Italian group builds an offering covering CRM, accounting, BI, and payroll—a functional scope that puts it in direct competition with Sage, Microsoft Dynamics, and emerging platforms like Pennylane on the SME-ETI segment.
For Turkey, DIA’s acquisition positions TeamSystem in a high-growth market where electronic invoicing is also already in effect, creating an additional bridge between similar regulatory markets.
What to watch for
The coming months will be decisive on several fronts: technical integration between ACD products and TeamSystem’s cloud platform, maintaining the close relationship between ACD and its accounting firms, and the group’s ability to transform four French acquisitions into a unified offering. For ACD client companies, the immediate point of vigilance is support continuity and the post-acquisition product roadmap.
To delve deeper into the subject, read our overview of Italian ERP publishers and compliance and our Sage vs Microsoft Dynamics vs Access Group comparison.
