Press Release
Oxalys joins European group cisbox, backed by Main Capital Partners, and accelerates its development to better serve its customers
Solingen, September 8th, 2026
– cisbox, a provider of Office of the CFO solutions backed by Main Capital Partners (“Main”), has acquired a majority stake in Oxalys, a France-based provider of Source-to-Pay SaaS solutions for mid-sized enterprises and public sector organizations. The acquisition marks an important milestone in cisbox’s international growth strategy and strengthens its capabilities across the full Source-to-Pay value chain.
Based in France, Oxalys develops a comprehensive Source-to-Pay SaaS solution for mid-sized enterprises and public sector organizations. Its software supports the full procurement lifecycle, including strategic sourcing (RFx), contract lifecycle management, supplier relationship management, procure-to-pay and spend management, while offering seamless integrations with leading ERP and financial systems. Over several decades, Oxalys has established a strong position in the French procurement software market, serving a diversified customer base across both private and public sectors and a broad range of end-market verticals.
Oxalys represents a strong strategic fit for cisbox and supports its ambition to build a prominent pan-European Office of the CFO software group. Following the combination with Millum, Oxalys expands the group’s capabilities in the procurement value chain by adding strategic sourcing, contract lifecycle management, and supplier relationship management to cisbox’s existing AP automation, payment, and operational procurement offering. The complementary product portfolios and customer relationships further diversify the group’s exposure across both mid-market and public sector customers.
This transaction marks cisbox’s third add-on acquisition since partnering with Main. cisbox currently operates across the DACH region and the Nordic countries, serving a wide customer base with its Source-to-Pay and Office of the CFO solutions. The addition of Oxalys enhances the group’s product offering, expands its vertical and geographic presence, and creates opportunities for cross-selling and further international expansion.
Laurent Guillot – Managing Director of Oxalys, commented :
« Joining forces with cisbox marks an exciting new chapter for Oxalys. We share a strong strategic vision for the procurement and Source-to-Contract software space. By combining our respective capabilities, we can broaden the solutions available to existing and prospective customers, particularly across AP automation and payment processes.
Together with cisbox and Main, we look forward to continuing the stable, long-term partnerships that Oxalys has built with its customers.»
Christof Majer – CEO of cisbox, added :
« We are happy and excited to join forces with Oxalys. The company brings proven and solid expertise in the strategic sourcing, contract management and supplier relationship management space and has a strong customer portfolio in the French market across mid-market, public and private customers. The acquisition marks an important step in our international buy-and-build journey by expanding the Group’s presence in France and strengthens our ability to offer solutions to our customers along the full Source-to-Pay value chain.»
Dorian Berndt, Investment Director of Main, concluded :
« The acquisition of Oxalys is a highly strategic step in cisbox’s international buy-and-build strategy. Oxalys strengthens the Groups presence in the French market across several strategic verticals and complements the its offering with its comprehensive procurement software suite.»
About Oxalys
Oxalys, a specialist in procurement and spend digitalization, is a trusted partner of SMEs and mid-market companies. Its solutions digitalize the entire procurement and commitment process, from supplier sourcing to the dematerialization of supplier invoices and their integration into accounting. Oxalys stands out for its configurable, scalable solutions and for a customer approach built on closeness and agility, adaptable to each company’s culture. The goal: to help every organization, private and public, succeed in digitalizing their procurement with ease. Oxalys currently supports more than 150 clients across every industry. Each month, over 50,000 users in 35 countries manage their purchasing and spend with Oxalys.
About cisbox
Founded in 2005 and headquartered in Solingen, Germany, cisbox GmbH provides cloud-based Office-of-the-CFO software for accounts-payable automation, payment processing and the Purchase-to-Pay (P2P) process. Its suite supports the entire P2P process — from AI-enhanced data labeling and certified invoice management (cisbox is ISAE 3402 Type 2 certified) to integrated payments — and connects seamlessly with existing ERP, accounting and banking systems through a broad range of interfaces. cisbox employs more than 210 people across offices in Germany, Norway and Vietnam and serves over 33,000 customers in more than 30 countries.
About Main Capital Partners
Main Capital Partners is a software investor managing private equity funds active in the Benelux, DACH, France, the Nordics, the UK, and North America with approximately EUR 12 billion in Assets under Management. Main has over 20 years of experience in strengthening software companies and works closely with the management teams in their portfolio as a strategic partner to achieve profitable growth and larger international software groups. Main has approximately 105 employees operating out of its offices in The Hague, Düsseldorf, Stockholm, Antwerp, Paris, London, and an affiliate office in Boston. Main maintains an active portfolio of over 55 software companies. The underlying portfolio employs approximately 15,000 employees. Through its Main Social Institute, Main supports students with grants and scholarships to study IT and Computer Science at Technical Universities and Universities of Applied Sciences.
For more information, please contact :
Jessica Vassaux – Marketing & Communication Manager at Oxalys
jessica.vassaux@oxalys.com
