OverviewSuggest Edit

White Mountains Insurance Group, Ltd. (White Mountains or the Company) is a financial services holding company with primary business interests in property and casualty insurance and reinsurance. The Company's corporate headquarters and its registered office are located in Hamilton, Bermuda and its principal executive office is located in Hanover, New Hampshire.
The Company conducts its principal businesses through:

  • OneBeacon - specialty insurance. OneBeacon's common shares are listed on the New York Stock Exchange under the symbol "OB". White Mountains owns 75% of OneBeacon.
  • HG Global/BAM - U.S. municipal bond reinsurance.
  • White Mountains Advisors - investment management with $28 billion of assets under management.
HQHanover, NH, US


White Mountains Insurance is headquartered in
Hanover, United States

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Latest Updates

Employees (est.) (Dec 2019)1,262(+20%)
Revenue (FY, 2020)$1.2 B(+33%)
Share Price (Dec 2021)$1 K
Cybersecurity ratingCMore
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Key People/Management at White Mountains Insurance

Reid Campbell

Reid Campbell

Jason Lichtenstein

Jason Lichtenstein

Deputy General Counsel
G. Manning Rountree

G. Manning Rountree

CEO and Director
Jen Moyer

Jen Moyer

Chief Administrative Officer
Michaela Hildreth

Michaela Hildreth

Chief Accounting Officer
Rob Seelig

Rob Seelig

General Counsel
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White Mountains Insurance Office Locations

White Mountains Insurance has offices in Hanover, Boston, Guilford and City of Hamilton
Hanover, NH, US (HQ)
23 S Main St #3b
Boston, MA, US
265 Franklin St 9th floor
Guilford, CT, US
200 Hubbard Rd
City of Hamilton, BM
26 Reid Street
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White Mountains Insurance Financials and Metrics

White Mountains Insurance Revenue

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White Mountains Insurance's revenue was reported to be $1.18 b in FY, 2020

Revenue (Q1, 2021)


Net income (Q1, 2021)


Market capitalization (31-Dec-2021)


Closing stock price (31-Dec-2021)


Cash (31-Mar-2021)

White Mountains Insurance's current market capitalization is $3.1 b.
USDFY, 2010FY, 2011FY, 2012FY, 2013FY, 2014FY, 2015FY, 2016FY, 2017FY, 2018FY, 2019FY, 2020

Net Income


Depreciation and Amortization


Cash From Operating Activities


Cash From Investing Activities

USDQ2, 2010Q3, 2010Q1, 2011Q2, 2011Q3, 2011Q1, 2012Q2, 2012Q3, 2012Q1, 2013Q2, 2013Q3, 2013Q1, 2014Q2, 2014Q3, 2014Q1, 2015Q2, 2015Q3, 2015Q1, 2016Q2, 2016Q3, 2016Q1, 2017Q2, 2017Q3, 2017Q1, 2018Q2, 2018Q3, 2018Q1, 2019Q2, 2019Q3, 2019Q3, 2020Q1, 2021

Net Income


Depreciation and Amortization


Cash From Operating Activities


Purchases of PP&E

USDQ2, 2010


0.2 x


0.1 x

Financial Leverage

3.7 x
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White Mountains Insurance Operating Metrics

White Mountains Insurance's Reported Claims, units was reported to be 30.6 k in FY, 2016.
FY, 2014FY, 2015FY, 2016

Reported Claims, units

37.18 k41.82 k30.58 k
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White Mountains Insurance Revenue Breakdown

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White Mountains Insurance revenue breakdown by business segment: 87.3% from OneBeacon, 10.9% from Other Operations and 1.8% from Other

White Mountains Insurance Cybersecurity Score

Cybersecurity ratingPremium dataset



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White Mountains Insurance Environment, Social & Governance (ESG) Ratings

CSRHub ESG ratingPremium dataset


out of 100

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White Mountains Insurance Online and Social Media Presence

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White Mountains Insurance Frequently Asked Questions

  • When was White Mountains Insurance founded?

    White Mountains Insurance was founded in 1980.

  • Who are White Mountains Insurance key executives?

    White Mountains Insurance's key executives are Reid Campbell, Jason Lichtenstein and G. Manning Rountree.

  • How many employees does White Mountains Insurance have?

    White Mountains Insurance has 1,262 employees.

  • What is White Mountains Insurance revenue?

    Latest White Mountains Insurance annual revenue is $1.2 b.

  • What is White Mountains Insurance revenue per employee?

    Latest White Mountains Insurance revenue per employee is $935.6 k.

  • Who are White Mountains Insurance competitors?

    Competitors of White Mountains Insurance include Insurance Australia Group, MS&AD Insurance Group and Global Indemnity.

  • Where is White Mountains Insurance headquarters?

    White Mountains Insurance headquarters is located at 23 S Main St #3b, Hanover.

  • Where are White Mountains Insurance offices?

    White Mountains Insurance has offices in Hanover, Boston, Guilford and City of Hamilton.

  • How many offices does White Mountains Insurance have?

    White Mountains Insurance has 4 offices.