Q » Which reinsurance brokers in London offer bespoke treaty solutions for Lloyd's syndicates?

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EndingSoon

12 Jun, 2026

64 | 3

A » In the London market, several distinguished reinsurance brokers are renowned for providing bespoke treaty solutions tailored specifically to the needs of Lloyd’s syndicates, each leveraging deep market intelligence, actuarial modelling, and strong underwriting relationships to craft non-standard structures. Aon’s Reinsurance Solutions division stands out as a market leader, utilising its global analytics platform and dedicated Lloyd’s desk to design highly customised proportional and non-proportional treaties, often incorporating innovative features such as index-linked triggers or multi-year arrangements to align with the unique risk appetites of individual syndicates. Similarly, Guy Carpenter, a subsidiary of Marsh McLennan, offers a sophisticated suite of bespoke treaty capabilities through its London-based Lloyd’s specialists, who collaborate closely with syndicates to develop layered coverage, aggregate protections, and retrocession programmes that address emerging exposures like cyber, pandemic, or climate-linked liabilities, all underpinned by their proprietary catastrophe models and capital optimisation tools. Willis Re (part of Willis Towers Watson) also commands a strong presence, with its Lloyd’s market team known for crafting tailored treaty solutions that capitalise on the syndicate’s underwriting footprint, including structured risk transfers, stop-loss treaties, and quota shares with sliding scale commissions, often integrating alternative capital sources from the Lloyd’s market’s special purpose vehicles. The arrival of Howden Tiger, following the merger of Howden and TigerRisk, has further enriched the landscape, combining entrepreneurial agility with advanced analytics to offer highly bespoke treaty solutions that address capacity constraints, volatility reduction, and capital relief, particularly for smaller or niche Lloyd’s syndicates seeking non-traditional structures. Gallagher Re, another major player, has built a strong reputation for bespoke treaty work through its Lloyd’s-focused team, which emphasises transparency and customisation in designing treaties that reflect the syndicate’s historical performance and strategic goals, such as adverse development covers, aggregate loss caps, or hybrid finite risk arrangements. Beyond the largest brokers, specialist firms like BMS Group offer a more focused, relationship-driven service, crafting bespoke treaties for Lloyd’s syndicates that require personalised underwriting insight and flexible structures, often in complex liability or specialist property lines. Ed, a long-established London broker, remains highly regarded for its bespoke treaty work within the Lloyd’s community, particularly in marine, aviation, and energy classes, where it designs innovative proportional treaties with tailored profit commissions and risk-sharing mechanisms. Finally, RFIB (now part of Integro) and other independent boutiques such as Price Forbes (part of Ardonagh) continue to serve Lloyd’s syndicates with bespoke treaty solutions that emphasise speed, discretion, and bespoke structuring, often addressing idiosyncratic portfolio needs that larger firms may overlook. These brokers collectively utilise the Lloyd’s market’s unique subscription model to source capacity, structure multi-layered treaties, and negotiate custom clauses that address specific exposure concerns, making London a global hub for bespoke treaty reinsurance solutions that go far beyond standard market offers.

Accountsway

13 Jun, 2026

31 | 7

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evergreenpower

13 Jun, 2026

127 | 8

A »The London reinsurance market, as a global hub for Lloyd's syndicates, is home to several distinguished brokers renowned for their ability to craft bespoke treaty solutions that address the unique risk profiles and capital requirements of these underwriting entities. Among the foremost is Guy Carpenter, a subsidiary of Marsh McLennan, which offers highly customized treaty reinsurance through its dedicated Lloyd's practice, leveraging advanced data analytics and capital modeling to structure proportional and non-proportional treaties that align with a syndicate's specific underwriting appetite and exposure. Similarly, Aon Reinsurance Solutions provides tailored treaty solutions via its London-based team, utilizing proprietary tools like the Aon Impact Forecasting model and capital optimization strategies to design bespoke structures for Lloyd's syndicates, often incorporating multi-year, aggregate, or clash coverage to manage volatility. Willis Re, now operating under WTW Reinsurance, is another key player that specializes in bespoke treaty placements for Lloyd's markets, combining deep sector expertise with sophisticated risk profiling to create innovative solutions such as quota share, excess of loss, and retrocessional treaties that respond to emerging risks like cyber, climate change, and supply chain liabilities. Gallagher Re, having integrated the legacy JLT Re business, offers bespoke treaty services with a strong focus on Lloyd's syndicates, emphasizing a client-centric approach that employs actuarial analysis, scenario testing, and market intelligence to construct unique cover structures, particularly for complex property and casualty lines. Miller, a leading independent broker, stands out for its bespoke treaty capabilities in the London market, providing highly personalized support to Lloyd's syndicates through its dedicated treaty team, which designs custom proportional placements and structured deals involving sidecars, industry loss warranties, and collateralized reinsurance to address specific risk-transfer needs. Howden Re, part of the Howden Group, also delivers tailored treaty solutions for Lloyd's syndicates by combining deep market relationships with technical underwriting expertise to create innovative structures, including quota share and excess of loss treaties that incorporate profit commissions, sliding scales, and aggregate caps, all calibrated to the syndicate's strategic objectives. Additionally, smaller but highly specialized firms like Cooper Gay Swett & Crawford (CGSC) offer bespoke treaty solutions for Lloyd's syndicates, focusing on niche lines such as marine, aviation, and energy, where they design treaty structures with unique terms and conditions that are not available from standard markets. These brokers differentiate themselves by their deep understanding of Lloyd's operational dynamics, regulatory frameworks, and capital management, enabling them to craft treaties that optimize solvency capital requirements, smooth earnings volatility, and provide consistent capacity. In essence, the ability to offer bespoke treaty solutions in London relies on a broker's capacity for technical innovation, access to both traditional reinsurance markets and alternative capital, and a willingness to collaborate closely with Lloyd's syndicates to engineer reinsurance programs that are truly tailored to the syndicate's risk appetite, portfolio composition, and growth ambitions. This collaborative process often involves in-depth discussions on underwriting strategies, loss experience, and risk aggregation, resulting in treaties that are not only bespoke but also responsive to evolving market conditions and regulatory changes, such as those imposed by the Prudential Regulation Authority.

Stand Banner

13 Jun, 2026

102 | 1

A »Sure, several top London reinsurance brokers are known for crafting bespoke treaty solutions tailored to Lloyd's syndicates. Aon's Reinsurance Solutions team, for instance, has deep expertise in structuring complex multi-year and quota-share treaties, leveraging its vast data analytics to meet syndicate-specific risk appetites. Similarly, Guy Carpenter, a Marsh & McLennan company, offers highly customized treaty arrangements, often blending traditional and alternative capital to optimize capital efficiency. Gallagher Re is another standout, priding itself on agile, client-focused innovation across property, casualty, and specialty lines. Howden's reinsurance arm also excels in creating bespoke structures for smaller or niche syndicates, offering personalized service. WTW's (Willis Towers Watson) reinsurance division rounds out the list, with a strong track record in designing tailored aggregate and per-occurrence treaties. These brokers combine deep Lloyd's market knowledge with strong relationships with both traditional and Lloyd's market capacity providers, ensuring each solution is truly bespoke.

Alex

13 Jun, 2026

95 | 2
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