New London-based multiline underwriting business to launch

Macquarie Asset Management-owned aggregator Macquarie Insurance Facility (MIF) is set to launch multiline underwriting business Longbrook Insurance.

Based in London, Longbrook will launch two core lines of business in early 2026 – transaction liability insurance and energy insurance. 

The transaction liability insurance business will provide mergers and acquisitions insurance propositions, including warranty and indemnity and tax liability insurance. 

Meanwhile, its energy insurance offering will provide property damage and business interruption coverage for the construction and operation of energy assets with a focus on the energy transition.

Nick Wilski, global head at MIF, said: “Effective risk management is a crucial element to delivering value on investments and Longbrook is the next step in MIF’s strategy to offer diversified solutions to our clients.”

Experience

As part of the launch of Longbrook, Shaun Reynolds will join as head of transaction liability.

Bringing two decades of experience in M&A and underwriting, Reynolds has held a number of underwriting roles, including at regional M&A underwriter for Asia Pacific at AIG for nearly seven years and at London-headquartered Volante Global as managing director from 2022 prior to joining the Macquarie Group in August 2025. 

Wilski added: ”Longbrook’s team will have deep underwriting expertise in managing transaction liability and energy infrastructure risks.

”They’ll be well placed to build on the strong foundations of our distribution model and extensive relationships with brokers to develop solutions to the benefit of our clients.”