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Gathering insights about White Mountains Insurance Group…

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White Mountains Insurance Group Tech Stack

White Mountains Insurance Group uses 8 technology products and services including SiteCatalyst, WordPress, Google Font API, and more. Explore White Mountains Insurance Group's tech stack below.

SiteCatalyst
Analytics
WordPress
Content Management System
Google Font API
Font Scripts
jQuery
Javascript Libraries
Google Maps
Maps
PHP
Programming Languages
Cloudflare Bot Management
Security
Animate.css
UI Frameworks

Media & News

White Mountains Insurance Group's Email Address Formats

White Mountains Insurance Group uses at least 1 format(s):

White Mountains Insurance Group Email Formats	Example	Percentage
FLast@whitemountains.com	JDoe@whitemountains.com	93%
First.Last@whitemountains.com	John.Doe@whitemountains.com	3%
FirstLast@whitemountains.com	JohnDoe@whitemountains.com	3%
First_Last@whitemountains.com	John_Doe@whitemountains.com	1%

Frequently Asked Questions

Where is White Mountains Insurance Group's headquarters located?

White Mountains Insurance Group's main headquarters is located at 26 Reid Street, Hamilton, Bermuda HM 11, BM. The company has employees across 2 continents, including North AmericaEurope.

What is White Mountains Insurance Group's phone number?

You can contact White Mountains Insurance Group's main corporate office by phone at

+1-603-640-****

. 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?

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?

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?

As of May 2025, White Mountains Insurance Group's annual revenue reached $15M.

What is White Mountains Insurance Group's SIC code NAICS code?

White Mountains Insurance Group's SIC code is 6331 - Fire, Marine, and Casualty Insurance NAICS code is 485112 - Commuter Rail Systems.

How many employees does White Mountains Insurance Group have currently?

As of May 2025, White Mountains Insurance Group has approximately 51 employees across 2 continents, including North AmericaEurope. Key team members include Chief Strategy Officer / Evp: G. H.President & Chief Financial Officer: L. C.Chairman Of The Board: W. H.. Explore White Mountains Insurance Group's employee directory with LeadIQ.

What industry does White Mountains Insurance Group belong to?

White Mountains Insurance Group operates in the Insurance industry.

What technology does White Mountains Insurance Group use?

White Mountains Insurance Group's tech stack includes SiteCatalystWordPressGoogle Font APIjQueryGoogle MapsPHPCloudflare Bot ManagementAnimate.css.

What is White Mountains Insurance Group's email format?

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

When was White Mountains Insurance Group founded?

White Mountains Insurance Group was founded in 1985.

White Mountains Insurance Group

InsuranceBermuda51-200 Employees

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