London's Leading Underwriters
London’s Leading Underwriters is a ranking of London Market underwriters.
The London's Leading Underwriters Report compiles around 400 nominations from underwriters and brokers, encompassing more than 690 underwriting professionals. This data collection process is conducted by Gracechurch, and the results are subsequently presented through Insurindex.
Download the 2025 London's Leading Underwriters Report
Surveys cover a cross-section of business classes, with brokers and underwriters from over 120 insurance companies in the London Market. Underwriters are ranked according to the number of mentions within a particular business class, based on the extent to which they are respected for being market leaders.
Nominators are asked to select any underwriter, regardless of seniority. Underwriter names are not prompted so that respondents can freely name any underwriters from any London Market insurer, other than their own.