Aon launches $200 million Sidecar X insurance capacity platform

Aon has launched Sidecar X, a dedicated capacity platform providing up to $200 million for representations and warranties (R&W) and tax insurance. The platform is designed to connect insurer and reinsurer capital with transactional risk placements through pre-agreed underwriting, pricing, and claims frameworks.

The initiative aims to shorten execution times and provide Aon clients with a 10% premium discount compared to standard market terms. By using pre-committed capacity rather than traditional collateralized sidecars, the structure seeks to reduce bilateral negotiations and provide greater certainty during complex M&A transactions.

Sidecar X is available to Aon clients across the United States, Canada, the United Kingdom, the European Economic Area, and Asia. The launch comes amid rising complexity in the transactional risk market, characterized by increasing rates and higher claims activity.