Insights

Strategic Growth White Mountains is a Bermuda-domiciled diversified insurance and financial services holding company with recent expansion activity through stakes in MGA platforms like Bishop Street Underwriters and growth in reinsurance operations, presenting cross-selling and platform-accreting opportunities across risk transfer, specialty lines, and collateralized capacity.

Financial Momentum Recent quarterly results show revenue in the mid-range and notable profitability, with second quarter net income of approximately 199.5 million on revenue of 844.6 million, signaling capacity for partner investments, structured reinsurance programs, or co-invested ventures with favorable risk-adjusted returns.

Leadership Latin Board additions and governance activity, including the appointment of new directors, indicate an openness to strategic partnerships and advisory collaborations; leverage these relationships to position senior-level engagements, joint ventures, or advisory services aligned with portfolio growth.

Global Footprint Domiciled in Bermuda with executive presence in the US and offices in multiple regions suggests a capability to serve multinational clients with cross-border risk solutions, regulatory navigation, and reinsurance programs across jurisdictions.

Market Positioning As a smaller, yet financially robust reinsurer with notable exposure to macro risks such as geopolitical events, White Mountains presents an opening for targeted products in cyber, political risk, and catastrophe reinsurance collaborations, alongside partnerships with MGAs and specialty underwriters to expand capacity and distribution.

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White Mountains Insurance Group Tech Stack

White Mountains Insurance Group uses 8 technology products and services including gstatic.com, WordPress, Lightbox, and more. Explore White Mountains Insurance Group's tech stack below.

  • gstatic.com
    Content Delivery Network
  • Content Management System
  • Lightbox
    Javascript Libraries
  • Office Suites
  • Windows Server
    Operating Systems
  • Platform As A Service
  • Yoast SEO
    Search Engines
  • Animate.css
    UI Frameworks

Media & News

White Mountains Insurance Group's Email Address Formats

White Mountains Insurance Group uses at least 4 email formats:
White Mountains Insurance Group Email FormatsExamplePercentage
FLast@whitemountains.comJDoe@whitemountains.com
91%
FirstLast@whitemountains.comJohnDoe@whitemountains.com
5%
First.Last@whitemountains.comJohn.Doe@whitemountains.com
3%
First_Last@whitemountains.comJohn_Doe@whitemountains.com
1%

Frequently Asked Questions

What is White Mountains Insurance Group's phone number?

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You can contact White Mountains Insurance Group's main corporate office by phone at . For more prospecting data, LeadIQ has access to up-to-date and accurate contact information within our platform. Find, capture, and sync contact data to your CRM and sales tools in one click.

What is White Mountains Insurance Group's stock symbol?

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White Mountains Insurance Group is a publicly traded company; the company's stock symbol is WTM.

What is White Mountains Insurance Group's official website and social media links?

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White Mountains Insurance Group's official website is whitemountains.com and has social profiles on LinkedIn.

How much revenue does White Mountains Insurance Group generate?

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As of October 2026, White Mountains Insurance Group's annual revenue is estimated to be $50M - $100M.

What is White Mountains Insurance Group's NAICS code?

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White Mountains Insurance Group's NAICS code is 524 - Insurance Carriers and Related Activities.

How many employees does White Mountains Insurance Group have currently?

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As of October 2026, White Mountains Insurance Group has approximately 17 employees across 2 continents, including North America and Europe. Key team members include Vice President And Cao / Controller: L. B., Managing Director: R. C. and Vice President: G. R. Explore White Mountains Insurance Group's employee directory with LeadIQ.

What industry does White Mountains Insurance Group belong to?

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White Mountains Insurance Group operates in the Insurance industry.

What technology does White Mountains Insurance Group use?

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White Mountains Insurance Group's tech stack includes gstatic.com, WordPress, Lightbox, Office 365, Windows Server, WP Engine, Yoast SEO and Animate.css.

What is White Mountains Insurance Group's email format?

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White Mountains Insurance Group's email format typically follows the pattern of FLast@whitemountains.com. Find more White Mountains Insurance Group email formats with LeadIQ.

When was White Mountains Insurance Group founded?

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White Mountains Insurance Group was founded in 1985.
White Mountains Insurance Group logo

White Mountains Insurance Group

InsuranceHamilton Parish, Bermuda11-50 Employees

White Mountains Insurance Group is a diversified holding company operating in the insurance and related financial services sectors, owning and managing a portfolio of businesses. It positions itself as a dependable partner for its portfolio companies and shareholders, aiming to create value through prudent, opportunistic management. The company is domiciled in Hamilton Parish, Bermuda, with executive headquarters in Hanover, New Hampshire, and maintains offices in Boston and Guilford, Connecticut.

It trades on the New York Stock Exchange under the ticker WTM. Manning Rountree retired as chief executive officer at the end of 2025, and Liam Caffrey is slated to assume the role on January 1, 2026.

Section iconCompany Overview

Phone number
Stock Symbol
WTM
NAICS Code
524 - Insurance Carriers and Related Activities
Founded
1985
Employees
11-50

Section iconFunding & Financials

  • $50M - $100M

    White Mountains Insurance Group's revenue is estimated to be in the range of $50M - $100M

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