Private company

Liberty Mutual Insurance

Liberty Mutual Insurance Company, often referred to as Liberty Mutual Insurance, is an American diversified global insurer and the sixth-largest property and casualty insurer in the world as of 2021.1

Last updated Oct 18, 2026.

Overview

1912Founded1

Liberty Mutual Insurance Company, often referred to as Liberty Mutual Insurance, is an American diversified global insurer and the sixth-largest property and casualty insurer in the world as of 2021. It ranks 91st on the Fortune 100 list of largest corporations in the United States based on 2025 revenue. Based in Boston, Massachusetts, it employs over 45,000 people in more than 900 locations throughout the world. As of December 31, 2021, Liberty Mutual Insurance had $156.043 billion in consolidated assets, $128.195 billion in consolidated liabilities and $48.2 billion in annual consolidated revenue.2

How it started

Early history

Liberty Mutual was founded in 1912 as the Massachusetts Employees Insurance Association (MEIA), following the passage of a 1911 Massachusetts law requiring employers to protect their employees with workers compensation insurance. The company was founded as a mutual company, a structure in which an insurance company is owned by its policyholders. The first branch office was opened in 1914, and later that year, the company wrote its first automobile insurance policy. The name was changed in 1917 to the Liberty Mutual Insurance Company and, through partnerships, the company began offering full-coverage auto policies.

Structural changes

In 1964, Liberty Mutual Insurance Company began offering life insurance through its Liberty Life Assurance Branch. In 2002, the company converted into its current mutual holding company structure, which would allow it to offer company's shares while remaining a mutual company. The conversion was controversial, as some policyholders believed the change would dilute their interest in the overall company, reduce their voting control, and limit their dividends. A lawsuit was filed, alleging that information provided to policyholders was misleading. Liberty Mutual settled the lawsuit in December 2001, which required additional disclosure and limited certain compensation to company officers and directors. Despite these concerns, the plan was approved by voting policyholders around November 2001. Leveraging the greater flexibility of the mutual holding company structure, Liberty Mutual transformed from a single-line, highly regional insurer to one of the world's leading property and casualty insurance companies.

Growth and acquisitions

Liberty Mutual's growth has been both organic and through acquisition. Early acquisitions were small, but Liberty Mutual has since made several large acquisitions, including the high-profile acquisition of Safeco Corporation in 2008. Liberty Mutual agreed to acquire all outstanding shares of Safeco for $68.25 per share, for a total transaction price of approximately $6.2 billion. The result of this activity was an increase in revenue from $6 billion to over $30 billion in twelve years. In 1999, the company purchased Wausau Insurance Cos.

From Wikipedia’s article on Liberty Mutual Insurance, shared under CC BY-SA 4.0.2

Leadership

Who has led Liberty Mutual Insurance, and when. Pick a name to see everywhere that person has worked.

Board members and other officers (14)

Timeline

  1. 1912Founded Founded1

Sources

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