Your Reliable Reinsurance Partner
For over 25 years, we have provided stable reinsurance capacity to support our internal and external clients’ long-term ambitions. Backed by a strong capital base and rooted in operational thinking, we understand our clients’ businesses because we come from the same world. We don’t chase opportunities — we build resilient partnerships, bringing flexibility and expertise where it truly matters.
About Our Identity
Originally founded in 2000 to serve the insurance needs of HOCHTIEF — a worldwide operating construction company and part of ACS Group, a global leader in construction and infrastructure projects — Stonefort Reinsurance has grown into one of the top five reinsurers in Luxembourg. Our expertise is built on the experience of a dedicated team rooted in real project experience within an operational group, giving us a deep and practical understanding of the business challenges faced by our clients.
Key features
Strong Financial Foundation, Resilient by Design.
Figures as at 31 December 2024.
310%
310%
55%
55%
743M
743M
25%
25%
$1.2B
$1.2B
A-
Stable Outlook
A-
Stable Outlook
Reinsurance with Depth and Purpose
At Stonefort, reinsurance is not a product — it’s a solution and a responsibility.
Beside our embedded group reinsurance solutions we focus on three core lines – provided to external cedents: PDBI / Nat Cat, Casualty, and Surety. Each is underwritten with discipline, supported by strong capital, and shaped by real operational insight. Our goal is to provide long-term capacity that adapts to the complexity of our clients’ risks — not to follow market cycles, but to help manage them.
Ancillary Activities
Stonefort Insurance
Learn more about us
Stonefort Captive Management
Historically providing captive advisory services within the group, this activity has been paused to prioritize our reinsurance core business.
Media
Stay informed with our latest news, insights, reports, and regulatory disclosures — all in one place.
Latest news
Stonefort Group Joins IMS Luxembourg
Stonefort Group Joins IMS Luxembourg
Stonefort Group is pleased to announce that it has become a member of IMS Luxembourg (Inspiring More Sustainability), a leading network dedicated to promoting sustainable development and responsible business practices.
By joining IMS Luxembourg, Stonefort Group reinforces its commitment to integrating sustainability into its activities and contributing to a more responsible and resilient business environment. This membership provides an opportunity to engage with a broad community of organizations in Luxembourg, share best practices, and participate in initiatives aimed at driving positive impact.
Through this step, Stonefort Group confirms its ambition to play an active role in supporting sustainable development, both within the Group and across its wider ecosystem.
👉 Read our initial announcement on LinkedIn
View LinkedIn post
26/05/2026
Stonefort Group Joins IMS Luxembourg
11/05/2026
Stonefort Group Achieves Great Place To Work® Certification
24/02/2026
2025 was another outstanding year for Stonefort Group
Contact
Strategically located at the heart of Europe to serve the needs of global construction and infrastructure leaders.
Stonefort Reinsurance SA
Head Office
4, rue Neuerburg
L-2215 Luxembourg
