White Mountains Insurance Group Ltd - Company Profile

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White Mountains Insurance Group Ltd: Overview

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White Mountains Insurance Group Ltd (White Mountains) is a Bermuda-based limited liability company that primarily operates through its subsidiaries and affiliates. The company offers products and services in municipal bond insurance, property and casualty insurance and reinsurance, and capital solutions for asset and wealth management firms. White Mountain’s products and services cater to various industries, including insurance and financial services, with applications in municipal bond insurance and asset management. It operates through subsidiaries and affiliates, utilizing a network of channel partners and distribution networks. The company has geographic locations in Bermuda and the US, targeting markets in these regions. White Mountains is headquartered in Hanover, the US.

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Headquarters United States of America

Address 23 South Main Street, Hanover, New Hampshire, 03755


Telephone 1 603 6402200

No of Employees 1,648

Industry Financial Services

Ticker Symbol & Exchange WTM (NYSE)

Revenue (2024) $2.9B 22.6% (2024 vs 2023)

EPS XYZ

Net Income (2024) XYZ 379% (2024 vs 2023)

Market Cap* $5.4B

Net Profit Margin (2024) XYZ 290.6% (2024 vs 2023)

* As of and is in US$
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White Mountains Insurance Group Ltd premium industry data and analytics

14+

Insurance Market Data Insights

Insight into market share and brand performance.

1

ICT Spend & Tech Priorities

IT Client Prospector provides intelligence on White Mountains Insurance Group Ltd’s likely spend across technology areas enabling you to understand the digital strategy.

Products and Services

Products Services
Municipal Bond Insurance Investment Management
Property & Casualty Insurance Claims Management
Property & Casualty ReInsurance Underwriting
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History

History section provides information on new products, mergers, acquisitions, expansions, approvals, and many more key events.

Year Event Description
2026 Acquisitions/Mergers/Takeovers In May, the company's subsidiary, White Mountains Partners acquired Hawkeye Electric by Enterprise Solutions.
2026 Acquisitions/Mergers/Takeovers In April, White Mountains Partners acquired a majority stake in BaseSix Systems LLC, a provider of building systems integration and aftermarket service.
2025 Contracts/Agreements In December, the company completed the sale of the Bamboo Group.
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Competitor Comparison

Key Parameters White Mountains Insurance Group Ltd Fairfax UK Holdings Ltd Assured Guaranty Ltd Alfa Insurance Group Bankers Insurance Group
Headquarters United States of America United Kingdom Bermuda United States of America United States of America
City Hanover London Pembroke Montgomery St. Petersburg
State/Province New Hampshire England - Alabama Florida
No. of Employees 1,648 1,038 367 - -
Entity Type Public Private Public Private Private
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Chart Financial activity with access to more key stats Chart Financial activity with access to more key stats Learn more
Executives
Name Position Board Since Age
Weston M. Hicks Chairman Executive Board 2023 69
David A. Tanner Vice Chairman Executive Board 2020 67
Liam P. Caffrey Chief Executive Officer; Director Executive Board 2026 53
Michaela J. Hildreth Chief Accounting Officer; Managing Director Senior Management 2021 58
Jen Moyer Chief Administrative Officer Senior Management - -
Non Dignissim Eros Proin vel Convallis 2026 XY
Non Dignissim Eros Proin vel Convallis 2026 XY
Non Dignissim Eros Proin vel Convallis 2026 XY
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