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Portland

Marsh Agency helps people and organizations manage risk and prepare for the future through insurance, benefits, retirement, and wealth management strategies. We believe in hands-on proactive service, data-driven insights, and understanding how global events can impact local decisions. As a trusted partner, we show our clients what’s possible and guide them during every step of their journey.

Portland
1945 Congress Street
Building A
Portland, Maine 04102

(207) 774-6257

Local Support | Global Reach

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Wide industry expertise.

Our promise is to connect you with our team of professionals who have specific expertise in your industry.

Automotive Construction Education Financial Institutions Health Care Human Services & Non-Profit Life Sciences Manufacturing Real Estate Transportation & Trucking Technology View all industries

Leadership

Gregg Ritter

Senior Vice President, Maine & Massachusetts Sales Manager

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Diana Miville

Vice President

Client Tools

CSR24

Around the clock customer service and access to policy documents.

Portal

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Personal, Business, & Employee Benefit quotes.

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Featured Insights

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Marsh acquires Triton Insurance Agency

11/02/2026
Doctor or nurse caregiver showing a tablet screen to senior man and laughing at home or nursing home

Annual reminder: Medicare Part D (creditable coverage) notices due to individuals

08/26/2026
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When Summer Fun Goes to the Dogs: Hidden Liability

08/24/2026
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Featured Events

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Medicare 101

09/02/2027
Senior couple consulting with healthcare worker about their insurance policy while having a meeting at clinic.

Medicare 101

08/05/2027
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