White Mountains Insurance Group Ltd. has 1,081 employees, according to Revelio Labs workforce intelligence data. The YoY growth rate is 9.3%.
Data source: Revelio Labs Coverage: Global workforce Latest update: September 2025
White Mountains (NYSE: WTM) is a diversified insurance and related financial services holding company that owns and manages businesses seeking a stable, sophisticated partner to drive value creation. Grounded in the core principles of our visionary founder Jack Byrne, we have been careful, opportunistic and successful stewards of our shareholders’ capital for more than three decades. We are most proud and protective of our reputation as a good partner – to our shareholders, to other stakeholders in our businesses and to the talented management teams who run them. In the end, doing right by your partners is what guarantees the next deal and the deal after that. We are domiciled in Hamilton Bermuda, with executive headquarters in Hanover, New Hampshire, and offices in Boston, and Guilford, Connecticut. For information about career opportunities at White Mountains, please contact careers@whitemountains.com
As of September 2025
White Mountain Insur Grp
workforce metrics
Headcount
1.1k
Avg. Salary
$106.9k
Tenure
4.5yr
Growth Rate
9.3%
Hiring Rate
Attrition Rate
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Interactive chart of White Mountain Insur Grp annual worldwide employee count from 2023 to 2025.
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Interactive chart of White Mountain Insur Grp annual active job postings from 2023 to 2025.
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