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Eastern Insurance Holdings, Inc. (formerly NASDAQ: EIHI) was a U.S. based insurance holding company that provided a range of commercial and personal property and casualty insurance products. Headquartered in Natick, Massachusetts, it primarily served customers in the New England region. On October 1, 2021, Eastern Insurance Holdings, Inc. and its agency subsidiary, Eastern Insurance Group LLC, were acquired by Brown & Brown, Inc. (NYSE: BRO), one of the largest and most respected independent insurance intermediaries in the nation. Following the acquisition, Eastern Insurance Group LLC now operates as 'Eastern Insurance Group LLC, A Brown & Brown Company,' continuing to offer insurance and risk management solutions as part of Brown & Brown's extensive network.
The Natick headquarters served as the central administrative and operational hub for Eastern Insurance Holdings, Inc., overseeing its underwriting, claims, customer service, and strategic business development before its acquisition.
The headquarters was likely a modern office facility equipped to support the operations of a regional insurance provider. Specific architectural details are not widely publicized, but it would have been designed for functionality and employee collaboration.
As a regional insurance leader, the work culture likely emphasized customer service, local market expertise, professionalism, and teamwork. Post-acquisition, the culture would be integrating with that of Brown & Brown, which is known for its decentralized operating model and entrepreneurial spirit.
The Natick headquarters was significant as the command center for Eastern Insurance's operations across New England, driving its growth and service delivery until its integration into Brown & Brown.
Eastern Insurance Holdings, Inc. primarily focused its operations within the United States, with a strong concentration in the New England region, particularly Massachusetts. It did not maintain a significant global operational footprint. Its services were geared towards domestic clients, offering property and casualty insurance solutions tailored to the U.S. market. Post-acquisition, as part of Brown & Brown, its clients have access to a broader national and international network.
2 Charles Street
Natick
MA
USA
Address: Various. For example, prior to acquisition, offices included locations like Norwell, Wakefield, Worcester, and others within MA.
To provide comprehensive insurance solutions and risk management advice to individuals and businesses throughout Massachusetts and other parts of New England, leveraging local market knowledge.
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As of April 2025, Eastern Insurance Holdings Inc' leadership includes:
Eastern Insurance Holdings Inc has been backed by several prominent investors over the years, including:
The most significant executive changes for Eastern Insurance Holdings, Inc. occurred around its acquisition by Brown & Brown, Inc. in October 2021. Leadership roles were transitioned as part of the integration process. Since then, executive movements would be within the Brown & Brown structure.
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Employees of Eastern Insurance Group LLC, A Brown & Brown Company, now primarily use email formats consistent with Brown & Brown's corporate structure or a maintained Eastern Insurance domain. Common formats include [first_initial][last]@[domain] or [first].[last]@[domain].
[first].[last]@easterninsurance.com or [first_initial][last]@bbrown.com
Format
john.smith@easterninsurance.com or jsmith@bbrown.com
Example
80%
Success rate
Brown & Brown, Inc. Press Release (via Business Wire) • October 1, 2021
Brown & Brown, Inc. (NYSE:BRO) today announced the completion of its acquisition of Eastern Insurance Holdings, Inc. (NASDAQ:EIHI), the insurance agency subsidiary of Eastern Bankshares, Inc. (NASDAQ:EBC). This strategic acquisition expands Brown & Brown's presence in the New England market....more
GlobeNewswire • August 3, 2021
Eastern Bankshares, Inc., the stock holding company for Eastern Bank, announced it has entered into a definitive agreement to sell its wholly-owned insurance agency subsidiary, Eastern Insurance Group LLC, to Brown & Brown, Inc. for approximately $510 million in cash....more
The Boston Globe • November 16, 2023
Eastern Insurance Group LLC, A Brown & Brown Company, was recognized by The Boston Globe as one of the Top Places to Work in Massachusetts for 2023 in the large company category, highlighting its continued commitment to a positive work environment post-acquisition....more
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