Insurance Linked Securities

ILS Manager Directory

The complete guide to dedicated insurance-linked securities fund managers

Published by GP Stakes, the private markets intelligence platform

13
ILS Managers
$74.5B
Combined AUM
1,245
Cat Bond Deals Tracked
$234.1B
Total Market Issuance

The insurance-linked securities market is managed by a relatively small group of specialized investment firms. Unlike most alternative asset classes where hundreds of managers compete for capital, the ILS space is dominated by roughly a dozen dedicated platforms that have built deep expertise in catastrophe risk modeling, reinsurance relationships, and portfolio construction.

This directory profiles each of the 13 dedicated ILS managers in our database, including their assets under management, strategy focus, corporate affiliations, and market positioning. Combined, these managers oversee approximately $74.5B in ILS-dedicated capital, making them significant counterparties in the global reinsurance market.

Several of these managers are subsidiaries of larger alternative asset management platforms, making them relevant to GP stakes analysis. The ILS business model generates stable management fees on sticky capital, with performance fees during benign catastrophe years. This fee structure is attractive to GP stakes buyers evaluating diversified alternative managers with ILS capabilities.

The barriers to entry in ILS management are substantial. New entrants require sophisticated catastrophe modeling capabilities, established relationships with cedents and brokers, and a track record of managing through loss events. This structural moat supports the long-term value of existing ILS platforms and makes them compelling targets for strategic investment.

ILS Manager Profiles

ManagerAUMStrategy FocusHeadquartersParent Company
Nephila Capital$10.0BILS, catastrophe bonds, weather derivativesHamilton, BermudaMarkel Group
Fermat Capital Management$10.0BCatastrophe bonds, ILSWashington, DCIndependent
Stone Ridge Asset Management$10.0BILS, reinsurance, alternative risk premiaNew York, NYIndependent
LGT ILS Partners$8.0BILS, catastrophe bonds, reinsurancePfaeffikon, SwitzerlandLGT Capital Partners
Credit Suisse ILS$8.0BILS, catastrophe bondsZurich, SwitzerlandUBS
Twelve Capital$7.0BILS, insurance debt, insurance equityZurich, SwitzerlandIndependent
Elementum Advisors$5.0BILS, catastrophe bondsChicago, ILIndependent
Leadenhall Capital Partners$4.0BILS, reinsurance-linked investmentsLondon, UKIndependent
Hudson Structured Capital Management$4.0BILS, structured reinsurance, catastrophe bondsStamford, CTIndependent
Securis Investment Partners$3.5BILS, reinsurance-linked investmentsLondon, UKIndependent
Aeolus Capital Management$3.0BILS, catastrophe reinsuranceHamilton, BermudaIndependent
Pillar Capital Management$2.0BILS, reinsuranceHamilton, BermudaIndependent
RenaissanceReN/AReinsurance, ILS, catastrophe bondsPembroke, BermudaIndependent

Manager Details

Nephila Capital

Hamilton, Bermuda

$10.0B
AUM
Strategy
ILS, catastrophe bonds, weather derivatives
Parent
Markel Group
Website
https://www.nephilacapital.com

One of the largest dedicated ILS managers; acquired by Markel in 2018

Fermat Capital Management

Washington, DC

$10.0B
AUM
Strategy
Catastrophe bonds, ILS
Parent
Independent
Website
https://www.fermatcap.com

Major cat bond fund manager, among the largest ILS investors

Stone Ridge Asset Management

New York, NY

$10.0B
AUM
Strategy
ILS, reinsurance, alternative risk premia
Parent
Independent
Website
https://www.stoneridgeam.com

Runs ILS mutual funds including the Stone Ridge High Yield Reinsurance Risk Premium Fund

LGT ILS Partners

Pfaeffikon, Switzerland

$8.0B
AUM
Strategy
ILS, catastrophe bonds, reinsurance
Parent
LGT Capital Partners
Website
https://www.lgtcp.com

One of the top ILS fund managers globally

Credit Suisse ILS

Zurich, Switzerland

$8.0B
AUM
Strategy
ILS, catastrophe bonds
Parent
UBS
Website
https://www.ubs.com

Now part of UBS following Credit Suisse acquisition; major ILS platform

Twelve Capital

Zurich, Switzerland

$7.0B
AUM
Strategy
ILS, insurance debt, insurance equity
Parent
Independent
Website
https://www.twelvecapital.com

Specialist insurance investment manager

Elementum Advisors

Chicago, IL

$5.0B
AUM
Strategy
ILS, catastrophe bonds
Parent
Independent
Website
https://www.elementumadvisors.com

Dedicated ILS and reinsurance fund manager

Leadenhall Capital Partners

London, UK

$4.0B
AUM
Strategy
ILS, reinsurance-linked investments
Parent
Independent
Website
https://www.leadenhallcp.com

London-based ILS specialist

Hudson Structured Capital Management

Stamford, CT

$4.0B
AUM
Strategy
ILS, structured reinsurance, catastrophe bonds
Parent
Independent
Website
https://www.hscm.com

HSCM focuses on structured reinsurance and ILS

Securis Investment Partners

London, UK

$3.5B
AUM
Strategy
ILS, reinsurance-linked investments
Parent
Independent
Website
https://www.securisinvestments.com

London-based ILS manager

Aeolus Capital Management

Hamilton, Bermuda

$3.0B
AUM
Strategy
ILS, catastrophe reinsurance
Parent
Independent
Website
https://www.aeoluscap.com

Specialist ILS manager focusing on catastrophe reinsurance

Pillar Capital Management

Hamilton, Bermuda

$2.0B
AUM
Strategy
ILS, reinsurance
Parent
Independent

Bermuda-based ILS manager

RenaissanceRe

Pembroke, Bermuda

N/A
AUM
Strategy
Reinsurance, ILS, catastrophe bonds
Parent
Independent
Website
https://www.renre.com

Major reinsurer with significant ILS / managed fund operations

Methodology

Manager data is compiled from public sources including firm websites, regulatory filings, industry reports, and conference materials. AUM figures reflect the most recently published numbers and may include non-ILS strategies where managers operate broader platforms. Strategy classifications are based on primary investment focus. The directory focuses on dedicated ILS managers and may not include all firms with incidental ILS exposure.

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Last updated: 2 March 2026