Sylvain Cassier (Kerys Software)
Overview
Sylvain Cassier is a co-founder and the Chief Product Officer (CPO) at KERYS Software, a French startup focused on innovative virtualization solutions for IT infrastructure. KERYS Software was established in 2024 by Cassier and several co-founders, including Thomas Brethomé and Sébastien Domergue, with Thomas Girard joining them in early 2025. The company is renowned for addressing the inefficiencies in IT hardware utilization by enabling multiple work environments to coexist on a single device, thereby reducing costs and carbon emissions while enhancing cybersecurity.
Recent Developments
In recent years, KERYS Software has made significant strides in the technology sector.
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2025: KERYS Software successfully raised €6.2 million in a pre-seed funding round. The investment was supported by Daphni, Kima Ventures, Seedcamp, Backtrace, and notable business angels like Nicolas Steegmann, Sébastien Pahl, and Amirhossein Malekzadeh. This funding aims to advance the company’s growth, product development, and international expansion efforts.
- The funding is intended to enhance KERYS Software’s team, improve product offerings, and expand its market presence internationally.
- The company was acknowledged for its contributions to deep tech and cybersecurity, being part of the SPRING 50 of 2025 by the French Tech Paris-Saclay and a partner of CEA LIST for security certifications.
- KERYS Software positions itself at the forefront of InfraTech innovation, providing solutions that optimize IT infrastructure costs, reinforce cybersecurity, and reduce carbon footprints.
- The startup is collaborating with CEA LIST to achieve high security certification levels, targeting near-native performance with highly secure virtualization technology.
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2024: KERYS Software was founded, addressing a critical gap in IT infrastructure management. The company prioritized reducing the carbon footprint of IT operations while ensuring strong cybersecurity and efficient cost management through virtualization.
Personal Information
| Attribute | Information |
|---|---|
| Full Name | Sylvain Cassier |
| Born | [Data Not Available] |
| Nationality | French |
| Occupation | Chief Product Officer at KERYS Software |
| Known For | Co-founding KERYS Software |
| Net Worth | [Data Not Available] |
| Education | [Data Not Available] |
Early Life and Education
Specific information about Sylvain Cassier's early life and educational background has not been publicly detailed. Like many in the tech industry, his early career may have included roles that built his expertise in IT infrastructure and cybersecurity, laying the foundation for his later work with KERYS Software.
Career and Notable Achievements
Sylvain Cassier's career is primarily marked by his co-founding role at KERYS Software, where his contributions have revolved around product development and strategic initiatives in IT infrastructure.
- 2024: Cassier, along with his co-founders, established KERYS Software to tackle significant IT infrastructure challenges. The focus was on developing virtualization solutions to maximize hardware utilization while improving performance and security.
- Key Achievements:
- Successfully launched KERYS Software’s YS::Cloud and YS::Desktop platforms that enable shared infrastructure models, significantly reducing physical device needs and associated costs.
- Played a critical role in the company’s strategic funding efforts, which secured €6.2 million in 2025, aimed at further product enhancement and global expansion.
Current Work and Impact
Sylvain Cassier's current work involves leading KERYS Software's product development, focusing on enabling enterprises to optimize their IT infrastructure for better cost management and reduced environmental impact. Under his leadership, KERYS Software has positioned itself as a crucial player in the InfraTech domain, recognized for pioneering virtualization technologies that promise both economic and environmental benefits.
Conclusion
Sylvain Cassier’s role at KERYS Software underscores a significant push towards sustainable and efficient IT practices. By advancing virtualization technologies, Cassier and his team are setting new standards in IT infrastructure management. The recent funding and strategic partnerships foretell a robust future for KERYS Software, as it continues to make strides towards innovating the way enterprises manage their IT operations, with potential long-term impacts on reducing global carbon footprints associated with IT.