New York Stock Exchange: WTM

How many employees work at White Mountain Insur Grp?

White Mountains Insurance Group Ltd. (WTM) has approximately 1,163 total employees worldwide as of December 2025, according to Revelio Labs workforce intelligence data. White Mountain Insur Grp's total headcount has grown 20.9% from 962 employees in 2023 to 1,163 in 2025.

Data source: Revelio LabsCoverage: Global workforce, 2023–2026Published June 2026

White Mountain Insur Grp is hiring

Is White Mountain Insur Grp hiring right now?

Yes, White Mountain Insur Grp is actively hiring. White Mountain Insur Grp had 15 active job postings in 2025, a 28.6% decline from 2024 see job openings & hiring trends.

About White Mountain Insur Grp's Workforce

White Mountains Insurance Group Ltd. (WTM) is a Financial Services company that employs 1,163 people worldwide as of December 2025. It is the 3rd-largest by headcount among its peers. Founded in 1980, the company is headquartered in Hanover, New Hampshire and trades on the New York Stock Exchange.

White Mountains Insurance Group’s workforce has grown 20.9% from 2023 to 2025, and it is up 8.1% year over year in 2025. Its employees are concentrated most in the United States (72.4%), followed by the United Kingdom (21.4%) and Israel (2.9%), with the United Kingdom identified as its fastest-growing location at 9.6%.

White Mountains Insurance Group’s largest groups are Finance and Operations (45.5%), Engineering (41.3%), and Sales and Marketing (13.2%), with Engineering growing fastest at 4.2%. The average tenure of employees is 4.2 years, and the average salary is $97,938, with regional medians of $87,000 in Northern America and $5,000 in Sub-Saharan Africa.

White Mountains Insurance Group’s hiring activity declined in 2025, with postings down 28.6% in 2025 to 15, while new postings per month have slowed from 29 in 2023 to 12 in 2025. Overall sentiment remains neutral but is turning upward.

Sourced from Revelio Labs workforce data.

As of December 2025

White Mountain Insur Grp
workforce metrics

Headcount

1.2k

8.1% YoY

Avg. Salary

$97.9k

0.4% YoY

Tenure

4.2yr

0.5yr YoY

Growth Rate

8.1%

1.0pts YoY

Hiring Rate

Attrition Rate

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Interactive chart of White Mountain Insur Grp annual worldwide employee count from 2023 to 2025.
  • White Mountain Insur Grp had 1,163 employees in 2025, a 8.1% increase (+91) from 2024.
  • White Mountain Insur Grp had 1,072 employees in 2024, a 7.2% increase (+74) from 2023.
  • White Mountain Insur Grp had 998 employees in 2023, a 4.6% increase (+45) from 2022.

White Mountain Insur Grp's total workforce has grown from 962 employees in 2023 to 1,163 in 2025.

White Mountains Insurance Group Ltd. — quarterly employee count (20232025)

YearQtrEmployeesYoY ChangeYoY %
2025Q41,163+91+8.1%
2025Q31,138+78+7.2%
2025Q21,122+69+6.4%
2025Q11,093+81+7.7%
2024Q41,072+74+7.2%
2024Q31,060+68+6.6%
2024Q21,053+74+7.3%
2024Q11,012+50+5.1%
2023Q4998+45+4.6%
2023Q3992+43+4.5%
2023Q2979+35+3.7%
2023Q1962+28+2.9%

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The United States accounts for the largest share of White Mountain Insur Grp's global workforce with approximately 72% of total employees, followed by the United Kingdom and Israel. White Mountain Insur Grp's headcount in the United Kingdom is growing fastest among its major locations, up 9.6% year over year in 2025.

White Mountain Insur Grp employees by country — 2025

CountryEmployees% of TotalYoY %
United States84272.4%+2.1%
United Kingdom25021.4%+9.6%
Israel342.9%-3.6%
Jamaica80.7%+0.0%
Bermuda50.4%+0.0%
India40.3%+0.0%
Tanzania40.3%+0.0%
Philippines30.3%+0.0%
Egypt20.2%+0.0%
Peru20.2%+0.0%

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White Mountain Insur Grp's largest employee groups are Finance and Operations (45.5%), Engineering (41.3%), and Sales and Marketing (13.2%).

White Mountain Insur Grp employees by department — 2025

DepartmentEmployees% of TotalYoY %
Finance and Operations52445.5%+3.8%
Engineering47641.3%+4.2%
Sales and Marketing15213.2%-1.5%

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White Mountain Insur Grp's average employee salary is $97,938 globally. Employees in Northern America receive the highest compensation. Pay is lowest in Sub-Saharan Africa, at a median of $5,000.

White Mountain Insur Grp median employee salary by region — 2025 (USD)

RegionMedian Salary
Northern America$87,000
Central and Western Asia$73,000
Northern Europe$55,000
Southern Asia$11,000
South-Eastern Asia$10,000
Sub-Saharan Africa$5,000

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Interactive chart of White Mountain Insur Grp annual active job postings from 2023 to 2025.
  • White Mountain Insur Grp had 15 active job postings in 2025, a 28.6% decline (-5) from 2024.
  • White Mountain Insur Grp had 20 active job postings in 2024, a 28.6% increase (+5) from 2023.
  • White Mountain Insur Grp had 15 active job postings in 2023, a 104.8% decline from 2022.
  • Hiring velocity in 2025: 12 new roles/month, down from 23 in 2024 and 29 in 2023. New metric

White Mountain Insur Grp's hiring is slowing: active job postings fell 28.6% in 2025 to 15, with new postings per month cooling from 29 in 2023 to 12 in 2025.

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Revelio Labs tracks employee sentiment across White Mountain Insur Grp's workforce based on public professional data. Overall sentiment is neutral and has improved year over year in 2025.

Overall

NegativePositive

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How fast is White Mountain Insur Grp growing?
In 2025, White Mountain Insur Grp's headcount grew 8.1% to 1,163 employees, up from 1,072 in 2024.
Where are White Mountain Insur Grp employees located?
Most White Mountain Insur Grp employees are based in the United States (72.4% of headcount), followed by the United Kingdom and Israel.
What is the average salary at White Mountain Insur Grp?
The average employee salary at White Mountain Insur Grp is approximately $97.9k per year.
How many people does White Mountain Insur Grp hire per year?
In 2025, White Mountain Insur Grp opened roughly 144 new roles — about 12 per month.
When was White Mountain Insur Grp founded and where is it headquartered?
White Mountain Insur Grp was founded in 1980 and is headquartered in Hanover, New Hampshire.

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