Overview
McDermott Will & Emery advised Main Capital Partners on its majority investment in PRIM’X, a leading software developer of encryption and data confidentiality solutions, primarily focused on customer groups in the European defense, governments and security industries.
This landmark, proprietary transaction marks Main’s second platform investment in France, following the recent opening of its Paris office in February 2025. The management team of PRIM’X will remain operationally involved and will hold a significant minority stake, ensuring continuity and commitment to the company’s long-term strategy.
In the next chapter of growth, Main Capital and PRIM’X will collaborate to further elevate the company’s global presence, deepen expertise in existing markets, explore new industry verticals, and expand the product suite with innovative, complementary solutions allowing to serve its customers even better.
The McDermott team advising on this transaction included :
Corporate
- Fabrice Piollet, Partner
- Maxime Fradet, Counsel
- Auriane Tournay, Associate
- Khimia Maddelin, Associate
Tax
- Antoine Vergnat, Partner
- Oriane Beauvois, Associate
Financing
- Pierre-Arnoux Mayoly, Partner
- Shirin Deyhim, Partner
- Hugo Lamour, Associate
- Camille Judas, Associate
Regulatory
- Sabine Nauges, Partner
- Andréa Londoño López, Associate
About McDermott
McDermott Will & Emery partners with leaders around the world to fuel missions, knock down barriers and shape markets. Our team works seamlessly across practices and industries to deliver highly effective solutions that propel success. More than 1,400 lawyers strong, we bring our personal passion and legal prowess to bear in every matter for our clients and the people they serve.
