Core Insights - Marsh Risk has launched Nimbus Casualty, an insurance facility aimed at providing excess general liability coverage during the construction phase of digital infrastructure projects in the US [1][2] - The facility offers coverage capacity of up to $75 million, with a minimum attachment point of $25 million, and is backed by A+ rated insurers from Lloyd's and the London market [1][2] - The introduction of Nimbus Casualty is part of Marsh Risk's strategy to address the complexities and challenges faced by clients in the US casualty market, particularly those involved in large-scale digital infrastructure projects [2][3] Coverage and Features - Nimbus Casualty employs Marsh Risk's proprietary XSellence excess casualty form, which simplifies claims handling and enhances coverage clarity [2] - The facility is designed to provide clients with the necessary advice and coverage certainty to protect their digital infrastructure investments effectively [3] Market Context and Financial Performance - The launch of Nimbus Casualty follows the extension of Marsh Risk's Nimbus facility, which supports large-scale data center construction with coverage limits of up to $2.7 billion for various insurance types [3] - In the fourth quarter of 2025, Marsh Risk reported an increase of $3.7 billion in revenues, marking a 10% growth compared to the same period in 2024 [4]