What Nephila Capital does

Nephila Capital is a Bermuda-based insurance-linked securities (ILS) fund manager and one of the largest globally, with approximately $7.7 billion in third-party assets under management. Founded in 1998, the firm operates from Bermuda with offices in the United States and United Kingdom, and has been a wholly-owned subsidiary of Markel Group Inc. (NYSE: MKL) since the 2020 acquisition. Nephila constructs and manages investment vehicles that allow institutional investors to assume catastrophe risk in exchange for risk-adjusted returns, channeling capital into reinsurance and insurance-linked instruments including catastrophe bond funds, sidecars, and specialty insurance vehicles.

The firm's product suite leverages Markel Group's regulated insurance and fronting infrastructure to originate reinsurance business and issue policies, with Markel acting as a fronting carrier on $1.855 billion of gross premium volume in 2025, a 42% year-over-year increase. Nephila participates as an investor in reinsurance contracts originated through this channel and applies catastrophe modeling and analytics to underwrite and price risk. The firm also participates in third-party catastrophe bond issuances originated by insurance and reinsurance cedents.

Nephila generates revenue through asset management fees on its ILS funds, performance fees tied to investment returns, and fronting/marketing fees on reinsurance placements arranged for insurance clients. Its primary clients are institutional investors allocating to ILS strategies, insurance and reinsurance cedents seeking capacity, and government catastrophe programs. Notable recent mandates include a $251.53 million participation as the largest participant in a $691 million Florida Citizens Property Insurance Corporation catastrophe bond placement and a $200 million commitment from the Florida State Board of Administration to a Nephila-managed specialty vehicle.

Name

Nephila Capital

Legal name

Nephila Capital Ltd.

Website

https://nephila.com

Company type

Private

Founded year

1998

Operating status

Operating

Headcount range

101–250 employees

Short description

Nephila Capital is a Bermuda-based insurance-linked securities fund manager and Markel Group subsidiary managing approximately $7.7 billion in third-party AUM, providing catastrophe bond funds, reinsurance sidecars, and specialty ILS vehicles to institutional investors and government catastrophe programs.

Ownership category

akta.pro rank

Product category

Insurance-Linked Securities Fund Management

NAICS

Securities, Commodity Contracts, and Other Financial Investments and Related Activities (523), Other Financial Investment Activities (5239), Miscellaneous Intermediation (52391)

SIC

Investment Advice (6282)

akta.pro primary industry

Catastrophe Bonds & Insurance-Linked Notes (ILS) (FSACABAO)

akta.pro secondary industries

Catastrophe & ILS Placement (Reinsurance) (FSAOAHAD), Collateralized / ILS-Backed Retrocession (FSAOAGAI)

Keywords

• Insurance-linked securities
• Catastrophe reinsurance
• Alternative asset management
• ILS fund management
• Reinsurance investment management

Headquarters

HQ city

Hamilton

HQ country

Bermuda

Offices3 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Technology or R&D, Marketing or Sales, Infrastructure

Revenue model

1. ILS Fund Management Fees: Generates fee income from managing insurance-linked securities (ILS) funds on behalf of third-party investors. Revenue includes management fees based on assets under management and performance-related fees.

Distribution channels1 record

Core offering

Nephila Capital is an insurance-linked securities (ILS) fund manager that structures and manages investment funds transferring catastrophe and reinsurance risk from insurance companies to capital markets investors. The firm invests third-party institutional capital into catastrophe bonds, collateralized reinsurance, and specialty ILS vehicles, generating fee income from assets under management and performance-based fees.

Product overview

Nephila Capital is an insurance-linked securities (ILS) fund manager that specializes in managing investments in catastrophe risk, reinsurance, and related financial instruments. The company operates as a specialized investment manager within the broader Markel Group umbrella, focusing on structuring and managing ILS products that transfer insurance risk to capital markets investors.

Differentiator

Problem solved

Functional benefit

Quantifiable outcome

• Managed $7.7 billion in third-party investor AUM as of early 2026
• +2 more outcomes

Named customers1 record

Segments1 record

Ideal customer profiles2 records

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

One partnership is on record.

• SEIcoreTechnology or Integration · 2 September 2025SEI has been selected by Nephila Capital Ltd. as a global strategic partner to support back- and middle-office operations across North America and the UK. The partnership leverages SEI's technology platform for reconciliation, payment processing, and investor onboarding capabilities, aiming to enhance Nephila's operational efficiency.

Scale indicators6 records

Recent moves5 records

Expansion highlights5 records

Direct peers

• Leadenhall Capital Partners: London-based ILS investment manager focused on insurance-linked strategies and reinsurance-linked assets. Comparable to Nephila as a specialist ILS manager targeting institutional capital with cat bond and collateralized reinsurance products.
• Twelve Capital: Zurich-based investment manager focused exclusively on insurance-linked strategies, including catastrophe bonds and private ILS. Direct competitor to Nephila for institutional ILS allocations, with overlapping product offerings in cat bonds and reinsurance sidecar structures.
• Fermat Capital Management: Specialized ILS investment manager managing catastrophe bond and reinsurance-linked strategies for institutional investors. Closely comparable to Nephila in product mix (cat bonds, collateralized reinsurance), investor base, and fee structure.
• Securis Investment Partners: Independent ILS investment manager specializing in catastrophe bond and reinsurance-linked investments. Direct peer to Nephila in the specialist ILS segment, competing for similar institutional mandates.

Others

• Guy Carpenter: Specialty reinsurance broker and advisory firm (part of Marsh McLennan) that intermediates ILS placements and supports cat bond issuance. Comparable to Nephila as a transaction counterpart in ILS market placements, but operates as broker rather than asset manager.
• Aon (Reinsurance Solutions): Global reinsurance broker and advisor that structures ILS placements and capital markets solutions. Comparable ecosystem participant to Nephila as a partner/channel in ILS transactions, though Aon acts as intermediary rather than principal ILS manager.

Broad incumbents

• Munich Re: One of the world's largest reinsurers with significant ILS capabilities through its dedicated insurance-linked securities team and sidecar vehicles. Comparable to Nephila as a major participant in cat bond and collateralized reinsurance markets, but with much broader reinsurance operations.
• BlackRock (Insurance Solutions): Global asset manager with insurance-linked securities offerings and insurance solutions platform. Comparable to Nephila in serving institutional investors seeking ILS exposure, but operates as part of a much larger multi-asset manager with broader distribution.
• Swiss Re Capital Markets: Capital markets arm of Swiss Re, one of the world's largest reinsurers, active in catastrophe bond issuance and ILS structuring. Overlaps with Nephila in catastrophe risk transfer to capital markets but operates as part of a much broader reinsurance group.
• Schroders Capital (Insurance-Linked Securities): Asset management arm of Schroders with dedicated ILS strategies across catastrophe bonds and private reinsurance. Competes with Nephila for institutional ILS mandates within a larger diversified asset management franchise.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat3 records

Key risks5 records

Key highlights7 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments5 records

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Nephila Capital