Aspen Insurance Holdings has reported a solid improvement in underwriting performance for full-year 2025, reflecting continued discipline and portfolio optimisation across its global operations.

Underwriting income increased to $370.8 million, up from $345.8 million in 2024, supported by a stronger combined ratio, which improved to 86.9%. On an adjusted basis, the combined ratio further strengthened to 86.2%, highlighting enhanced underwriting efficiency and risk selection.

Gross written premiums saw steady growth, reaching $4.67 billion, with both Aspen’s Insurance and Reinsurance segments contributing to the uplift. The Reinsurance division, in particular, benefited from new business in casualty lines, capitalising on favourable market conditions and expanding its portfolio.

The company’s performance was also supported by a notable reduction in catastrophe-related impacts compared to the previous year, contributing to improved overall underwriting outcomes.

Aspen continues to operate through its dual-segment structure—Insurance and Reinsurance—enabling a more focused approach to serving clients and delivering tailored solutions across markets. Ongoing portfolio management actions have further strengthened the quality and resilience of its underwriting book.

The results come as Aspen enters a new phase as part of Sompo Holdings, following its acquisition and transition to a wholly owned subsidiary. The move is expected to enhance Aspen’s global specialty and reinsurance capabilities while supporting long-term strategic growth.

Overall, the 2025 performance underscores Aspen’s ability to deliver consistent underwriting improvements, backed by disciplined execution, targeted growth, and a strong focus on profitability.