Amphitrite Underwriting Gains Full Independence from Arch Insurance

Amphitrite Underwriting London, a specialist marine hull managing general agent (MGA), has achieved full independence by buying back Arch Insurance’s minority shareholding. Founded in 2018 with Arch’s seed investment and capacity backing, Amphitrite entered the market in 2019 and quickly established itself as a niche player amid heightened marine sector scrutiny. Despite the buyback, Arch will remain a long-term capacity provider and continue leading Amphitrite’s marine hull portfolio. CEO Konstantinos Tampakakis highlighted that full independence will enhance Amphitrite’s ability to attract top underwriters aligned with its vision of building a specialist, diversified global marine MGA. The company is also expanding beyond marine hull, launching dedicated cargo and marine war insurance divisions to diversify its offerings. Arch’s CEO Hugh Sturgess congratulated Amphitrite on its success and emphasized the ongoing strong partnership between the two firms.