
Specialist reinsurance broker Miller has completed the acquisition of AHJ Holdings, the parent company of Alwen Hough Johnson and AHJ Europe.
The deal, first disclosed in February, has received all regulatory approvals.
AHJ, founded in 1973, is a specialist reinsurance broker with expertise in property, casualty, marine, energy and several niche insurance markets.
The acquisition is expected to enhance Miller’s treaty reinsurance capabilities and extend its market reach into the Nordic, Caribbean and North American regions.
Miller Group CEO James Hands 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.”
The reinsurance teams of Miller and AHJ will combine to operate as AHJ Miller.

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By GlobalDataThis joint venture will be co-led by Gary Masters and Shaun Sinniah.
AHJ Miller will offer reinsurance services across industries including accident and health, cargo, construction, delegated authorities, healthcare, marine, professional and financial risks, property and casualty, renewable energy, and sports and entertainment.
Masters stated: “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 benefitting [from] a platform that will enable us to further grow across our existing products and geographies.”
The acquisition aligns with Miller Group’s strategy to grow its reinsurance business.
In 2024, the company expanded its operations through the acquisition of 4809 Brokers and Bruzon, a Spanish reinsurance broker.