Top 10 Lloyd's of London Syndicates

Hiscox Syndicate 33 is one of Lloyd's largest and most diversified syndicates, writing $4.5B in GWP across specialty casualty, property, art & private client, and cyber lines. Hiscox Group reported £4.2B in GWP for 2024 with a 91% combined ratio, the best in its class. Its big-ticket business insures satellites, fine art, and political risk for Fortune 500 clients globally, leveraging 130+ years of Lloyd's underwriting heritage.

Hiscox Syndicate 33

Tokio Marine Kiln (TMK) is the Lloyd's trading platform of Tokio Marine Group, Japan's largest insurer, and writes $2.5B in GWP through Syndicate 1880. Formed through the 2014 merger of Tokio Marine Europe and Kiln Group, TMK employs 1,800 across 14 countries. It is the market leader in aviation hull and liability, energy, and political violence risks, and consistently achieves a combined ratio below 94%.

Tokio Marine Kiln (TMK) Syndicate 1880

Brit Insurance Syndicate 2987, owned by Fairfax Financial Holdings since 2015, writes $2.7B in GWP across specialty property, casualty, marine, energy, and reinsurance. Brit employs 1,000+ underwriting professionals in London and internationally. Its Ki Syndicate 1618, the world's first fully algorithmically underwritten Lloyd's syndicate launched in 2021, now writes $400M+ in GWP using machine-learning models trained on Lloyd's market data.

Brit Insurance Syndicate 2987

Munich Re's Lloyd's Syndicate 457 is the reinsurance giant's dedicated London market platform, writing $1.8B in specialty reinsurance and direct lines GWP. Backed by Munich Re's AM Best A+ Superior capital, Syndicate 457 provides substantial capacity for catastrophe, credit & surety, and specialty liability. It participates in Lloyd's largest line sizes for NatCat retrocession, leveraging Munich Re's proprietary risk modelling software.

Munich Re Syndicate 457

Aspen Insurance Syndicate 4711 writes $1.5B+ in specialty GWP covering casualty, marine, property, and credit. Aspen Insurance Holdings, backed by Apollo Global Management since 2019, employs 1,300+ and holds an AM Best A (Excellent) rating. Its Lloyd's syndicate focuses on large-line specialty risks where Aspen's reinsurance expertise translates to superior loss picking on primary risks.

Aspen Insurance Syndicate 4711

Atrium Underwriting Group Syndicate 609 is a specialist in energy, marine, and property, writing $1.2B in GWP through its Lloyd's platform. Backed by Enstar Group, Atrium employs 280+ underwriters in London and focuses on technically underwritten specialty lines. Its offshore energy team is one of the largest in the Lloyd's market, covering deepwater drilling, FPSO vessels, and renewable energy infrastructure across 60+ countries.

Atrium Syndicate 609

Canopius Syndicate 4444 is a specialty casualty and property insurer writing $1.1B in GWP across excess casualty, professional indemnity, and specialty property. Majority-owned by Sompo Holdings of Japan since 2017, Canopius employs 700+ across Lloyd's, the London company market, and overseas platforms. Its 2024 combined ratio of 92.3% ranked it among the top-quartile performers in the Lloyd's market.

Canopius Syndicate 4444

Mapfre's Lloyd's Syndicate 2014 extends Spain's largest insurer into London specialty markets, writing $900M in GWP across marine cargo, aviation, and Latin American specialty risks. The syndicate leverages Mapfre's unrivalled distribution network across 44 countries and is the bridge between Lloyd's capacity and Latin American insureds who prefer Lloyd's security. It achieved a 93% combined ratio in 2024, outperforming the Lloyd's market average.

Mapfre Syndicate 2014

The Corporation of Lloyd's provides the shared infrastructure, regulatory oversight, and capital framework for all Lloyd's syndicates, operating the historic One Lime Street building and the Lloyd's Underwriting Room. With £52.1B in GWP across 76 active syndicates in 2023 and a market combined ratio of 84% — the best in a decade — Lloyd's remains the global benchmark for specialty risk. Its Central Fund provides the ultimate insurance backing for all Lloyd's policies, rated AA- by S&P.

Lloyd's of London (Corporation)

Hiscox Syndicate 33 is one of Lloyd's largest and most diversified syndicates, writing $4.5B in GWP across specialty casualty, property, art & private client, and cyber lines. Hiscox Group reported £4.2B in GWP for 2024 with a 91% combined ratio, the best in its class. Its big-ticket business insures satellites, fine art, and political risk for Fortune 500 clients globally, leveraging 130+ years of Lloyd's underwriting heritage.

Hiscox Syndicate 33

Tokio Marine Kiln (TMK) is the Lloyd's trading platform of Tokio Marine Group, Japan's largest insurer, and writes $2.5B in GWP through Syndicate 1880. Formed through the 2014 merger of Tokio Marine Europe and Kiln Group, TMK employs 1,800 across 14 countries. It is the market leader in aviation hull and liability, energy, and political violence risks, and consistently achieves a combined ratio below 94%.

Tokio Marine Kiln (TMK) Syndicate 1880

Brit Insurance Syndicate 2987, owned by Fairfax Financial Holdings since 2015, writes $2.7B in GWP across specialty property, casualty, marine, energy, and reinsurance. Brit employs 1,000+ underwriting professionals in London and internationally. Its Ki Syndicate 1618, the world's first fully algorithmically underwritten Lloyd's syndicate launched in 2021, now writes $400M+ in GWP using machine-learning models trained on Lloyd's market data.

Brit Insurance Syndicate 2987

Munich Re's Lloyd's Syndicate 457 is the reinsurance giant's dedicated London market platform, writing $1.8B in specialty reinsurance and direct lines GWP. Backed by Munich Re's AM Best A+ Superior capital, Syndicate 457 provides substantial capacity for catastrophe, credit & surety, and specialty liability. It participates in Lloyd's largest line sizes for NatCat retrocession, leveraging Munich Re's proprietary risk modelling software.

Munich Re Syndicate 457

Aspen Insurance Syndicate 4711 writes $1.5B+ in specialty GWP covering casualty, marine, property, and credit. Aspen Insurance Holdings, backed by Apollo Global Management since 2019, employs 1,300+ and holds an AM Best A (Excellent) rating. Its Lloyd's syndicate focuses on large-line specialty risks where Aspen's reinsurance expertise translates to superior loss picking on primary risks.

Aspen Insurance Syndicate 4711

Atrium Underwriting Group Syndicate 609 is a specialist in energy, marine, and property, writing $1.2B in GWP through its Lloyd's platform. Backed by Enstar Group, Atrium employs 280+ underwriters in London and focuses on technically underwritten specialty lines. Its offshore energy team is one of the largest in the Lloyd's market, covering deepwater drilling, FPSO vessels, and renewable energy infrastructure across 60+ countries.

Atrium Syndicate 609

Canopius Syndicate 4444 is a specialty casualty and property insurer writing $1.1B in GWP across excess casualty, professional indemnity, and specialty property. Majority-owned by Sompo Holdings of Japan since 2017, Canopius employs 700+ across Lloyd's, the London company market, and overseas platforms. Its 2024 combined ratio of 92.3% ranked it among the top-quartile performers in the Lloyd's market.

Canopius Syndicate 4444

Mapfre's Lloyd's Syndicate 2014 extends Spain's largest insurer into London specialty markets, writing $900M in GWP across marine cargo, aviation, and Latin American specialty risks. The syndicate leverages Mapfre's unrivalled distribution network across 44 countries and is the bridge between Lloyd's capacity and Latin American insureds who prefer Lloyd's security. It achieved a 93% combined ratio in 2024, outperforming the Lloyd's market average.

Mapfre Syndicate 2014

The Corporation of Lloyd's provides the shared infrastructure, regulatory oversight, and capital framework for all Lloyd's syndicates, operating the historic One Lime Street building and the Lloyd's Underwriting Room. With £52.1B in GWP across 76 active syndicates in 2023 and a market combined ratio of 84% — the best in a decade — Lloyd's remains the global benchmark for specialty risk. Its Central Fund provides the ultimate insurance backing for all Lloyd's policies, rated AA- by S&P.

Lloyd's of London (Corporation)