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State Automobile Mutual Insurance Company

An American property-and-casualty insurance company founded in Columbus, Ohio, in 1921 and acquired by Liberty Mutual in 2022.

Last updated August 31, 2026

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Overview

State Automobile Mutual Insurance Company, commonly known as State Auto Mutual or State Auto, is an American insurance company headquartered in Columbus, Ohio. The company was established on September 16, 1921, by Robert “Bob” Pein, who started the business with $30,000 in borrowed capital and three employees. It was the first casualty insurance company headquartered in Columbus. Pein founded State Auto in response to what he regarded as structural weaknesses in the automobile-insurance market. In his view, rates were excessively influenced by large East Coast insurers, while claims work was often assigned to outside contractors rather than handled by permanent employees. State Auto’s original identity was therefore closely tied to automobile casualty insurance and to the development of a locally rooted insurance business serving policyholders from the Midwest. The company initially operated from 257 East Broad Street in Columbus. In 1929, it moved to 518 East Broad Street, a location that became strongly associated with the company and its public identity. The building later became the setting for State Auto’s annual Christmas Corner display, a civic tradition that connected the insurer with the Columbus community beyond its commercial role. Over time, State Auto broadened its business beyond the casualty coverage for which it was founded. Its activities came to include property insurance, making the company a broader property-and-casualty insurer rather than an automobile-only enterprise. The available reference material does not provide a complete breakdown of its product portfolio, regional subsidiaries, distribution channels, or current policy brands, so those details should not be inferred here. State Auto also became a publicly traded insurance company. Its shares traded under the symbol STFC on the NASDAQ Global Select Market, although the company’s listing status following its acquisition is not fully specified in the available material. In 2022, Liberty Mutual acquired State Auto for approximately $1 billion. The transaction placed State Auto within Liberty Mutual’s broader insurance group and changed its ownership structure. Following the acquisition, Kim Garland was appointed president. State Auto’s historical significance rests on several overlapping identities: a Columbus-founded automobile insurer, a regional property-and-casualty insurance company, a publicly traded insurance enterprise, and a long-standing participant in the civic life of its headquarters city. Its Christmas Corner tradition, begun during the Great Depression and later expanded with a nativity scene and choir performances, became one of its most recognizable public-facing activities. After the Liberty Mutual acquisition, the State Auto name and legacy continued to be associated with the Columbus operation, while the company’s independent corporate position changed.

History

State Automobile Mutual Insurance Company was founded in Columbus, Ohio, on September 16, 1921, by Robert “Bob” Pein. The company began with $30,000 in borrowed funds and a staff of three. At the time, Pein believed that automobile insurance was overly controlled by companies based on the East Coast, which he felt contributed to high rates in markets such as the Midwest. He also objected to the widespread use of independent contractors as claims adjusters instead of employing adjusters directly. State Auto was created as a locally headquartered alternative in the casualty-insurance field. The company initially occupied premises at 257 East Broad Street. In 1929, it moved to 518 East Broad Street, which became its long-term Columbus address and an important part of its civic identity. During the Great Depression, Pein established an elaborate Christmas display outside the company’s building as a gesture intended to raise local morale. He later described the display as a “Christmas Card to the community.” This initiative developed into Christmas Corner, a recurring seasonal attraction associated with State Auto and downtown Columbus. A life-size nativity scene was added to Christmas Corner in 1962. The display was presented alongside performances by local choirs and became a visible expression of the company’s community presence. During the COVID-19 pandemic, a three-dimensional camera originally designed for insurance inspections was used to add a virtual component to the exhibit. In August 2023, the nativity scene was donated to the Museum of Catholic Art and History. The public winter display was planned to move several blocks west on Broad Street to the lawn of St. Joseph Cathedral. State Auto’s commercial scope expanded over the decades. Although its original business was automobile casualty insurance, the company subsequently entered the property-insurance market and became a broader property-and-casualty insurer. The available reference material does not identify every product, subsidiary, state license, or distribution arrangement, but the expansion demonstrates that the company moved beyond its original automobile-centered mission. State Auto later operated as a publicly traded insurance company, with shares trading under the symbol STFC on the NASDAQ Global Select Market. In 2022, Liberty Mutual acquired the company for approximately $1 billion. The transaction transformed State Auto from an independent public insurance enterprise into a business owned by a larger insurance group. Kim Garland was appointed president after the acquisition. The available material does not fully describe the post-transaction operating structure, the treatment of the former public listing, or the extent to which State Auto products and branding were integrated into Liberty Mutual. The company’s history therefore combines regional insurance entrepreneurship, expansion from automobile casualty coverage into property insurance, public-market participation, a major change in ownership, and a distinctive tradition of civic presentation. Its Columbus origins and Christmas Corner display remain central to the brand’s historical narrative even after the 2022 Liberty Mutual transaction.

  • 2023

    Nativity scene donated to museum

    [1]

    The Christmas Corner nativity scene was donated to the Museum of Catholic Art and History, with future public display planned at St. Joseph Cathedral.

  • 2022

    Acquired by Liberty Mutual

    [1]

    Liberty Mutual acquired State Auto in a transaction valued at approximately $1 billion.

  • 1962

    Nativity scene added to Christmas Corner

    [1]

    A life-size nativity scene became part of State Auto’s established Christmas Corner display.

  • 1929

    Move to 518 East Broad Street

    [1]

    The company moved from its original address at 257 East Broad Street to 518 East Broad Street, its long-associated Columbus site.

  • 1921

    State Auto is founded in Columbus

    [1]

    Robert “Bob” Pein founded State Automobile Mutual Insurance Company on September 16 with $30,000 in borrowed funds and three employees.

Products and positioning

A Columbus-rooted American property-and-casualty insurer whose origins lie in automobile casualty coverage and whose identity has also been shaped by long-standing community engagement.

  • Automobile insurance · 1921

    Automobile casualty insurance

    Automobile casualty insurance was State Auto’s founding business and the basis for Robert Pein’s decision to establish the company in 1921. The company was created partly in response to Pein’s criticism of high rates and contractor-based claims adjustment in the American automobile-insurance market.

  • Property insurance

    Property insurance

    State Auto later expanded into property insurance, broadening its identity from an automobile casualty insurer into a property-and-casualty insurance company. The available reference material does not specify individual property policy types or coverage limits.

Marketing campaigns

  • Christmas Corner

    Columbus, Ohio

    State Auto’s annual Christmas Corner display began after the completion of its East Broad Street building, when founder Robert Pein created a seasonal installation intended to lift the spirits of Columbus residents during the Great Depression. The tradition later incorporated a nativity scene and local choir performances.

    Outcome. The display became a long-running civic tradition associated with State Auto. During the COVID-19 pandemic it gained a virtual component, and the nativity scene was donated to a museum in 2023.

Brand decisions

  • 2022

    Accept acquisition by Liberty MutualM&A

    Background

    State Auto was an independent publicly traded insurance company before Liberty Mutual acquired it. The transaction was reported as being worth approximately $1 billion.

    Action taken

    Liberty Mutual acquired State Automobile Mutual Insurance Company and brought it into its insurance group.

    Aftermath

    Kim Garland was appointed president following the acquisition. The available reference material does not fully explain the post-acquisition brand, listing, and operating arrangements.

    Approximate acquisition value. $1 billion (2022)

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