Miller completes acquisition of AHJ
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Miller completes acquisition of AHJ

Rebecca Harborne
Rebecca Harborne 03 June 2025
Rebecca Harborne
Rebecca Harborne 03 June 2025
Miller completes acquisition of AHJ

Acquisition to significantly accelerate the Miller Group’s reinsurance growth strategy, which has seen it acquire capital advisory business 4809 Brokers and leading Spanish (re)insurance broker Bruzon in 2024. 

Miller, the independent specialist (re)insurance broking group, is pleased to announce that it has completed the acquisition of AHJ Holdings Ltd (AHJ), the ultimate parent company of Alwen Hough Johnson Limited and AHJ Europe AS. The transaction closed on 2 June following the receipt of all necessary regulatory approvals. 

Founded in 1973, AHJ is a highly regarded specialist reinsurance broking group across Property, Casualty, Marine, Energy and also places business in a number of niche insurance lines. The acquisition provides Miller with significant scale and capability in treaty reinsurance as well as access to AHJ’s strong positioning in Nordic, Caribbean and North American Treaty business. 

The transaction will create a strengthened client offering with deeper expertise and market relationships, allowing the delivery of a more comprehensive and differentiated range of reinsurance solutions. The Miller and AHJ reinsurance teams will operate under the trade name of AHJ Miller and be jointly led by Gary Masters and Shaun Sinniah.

James Hands, Group CEO, Miller, said: “The acquisition of AHJ significantly accelerates our reinsurance strategy. The dedicated expertise which AHJ brings strongly complements our leading specialty offering and will allow us to bring our combined capabilities to a greater number of clients. It is with great enthusiasm that we welcome Gary and the AHJ team to Miller.”

Gary Masters, CEO of AHJ Miller, commented: “We are delighted to become part of the most exciting growth story in the specialty broking space. Miller’s culture and reputation as a uniquely client centric business mean we could not have found a better home. As part of AHJ Miller we will be able to bring additional services to our clients, such as Miller’s highly regarded facultative and capital advisory capabilities, while benefiting a platform that will enable us to further grow across our existing products and geographies.”

Shaun Sinniah, President of AHJ Miller, added: “We are continuing to develop our reinsurance offering at pace and the acquisition of AHJ marks a significant step in that journey. This strengthens our reinsurance platform and amplifies our entire offering by bringing together highly complementary talent, market access and client solutions. I look forward to the opportunities this partnership brings as we continue to become the trusted and bespoke advisor that our clients are seeking.”

Reinsurance by AHJ Miller

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Rebecca Harbourne

Rebecca Harborne

Head of Communications +44 (0) 20 7031 2722 [email protected] Read more