About A.I.M. Mutual
A New England Workers’ Comp Partner
A.I.M. Mutual is a leading workers’ compensation insurance carrier helping brokers, policyholders, and injured workers across Massachusetts and New England through responsive claim management, workplace safety services, expert guidance, and dependable support.
Our Focus
Deep Expertise Grounded in Regional Experience
Since 1989, A.I.M. Mutual has specialized in workers’ compensation insurance. That focus has shaped who we are from the start: a company known for responsive service, deep local expertise, and a personal approach to the people we serve. We listen with empathy, act with compassion, and help people move forward with greater confidence and peace of mind.
Over the years, we’ve built meaningful relationships throughout Massachusetts and New England by putting our experience into practice by being dependable and easy to work with.
Strength, Stability, Service
For businesses, brokers, and injured workers, confidence in a carrier partner matters. A.I.M. Mutual brings together financial strength, regional focus, and a long-standing commitment to responsive service.
Rated A (Excellent) by AM Best
Serving businesses since 1989
Licensed in all six New England states
Policyholders
What Shapes the A.I.M. Mutual Experience
The way we work reflects the values behind the A.I.M. Mutual name.
Peace of Mind for All
We strive to provide a workers’ compensation experience grounded in empathy, compassion, doing the right thing, and collaboration.
Integrity, Compassion & Partnership
We’re known for our integrity, compassion, pride in our work, meaningful partnerships, and commitment to community.
Empathetic, Forward-Thinking Solutions
We deliver empathetic, forward-thinking solutions that meet the diverse needs of those we serve.
Support for the People We Serve
We support injured workers, brokers, and policyholders with care, responsive service, and confidence.
How We’ve Grown
For more than 35 years, A.I.M. Mutual has grown by staying focused, expanding thoughtfully, and continually raising the standard of support for those we serve.
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1989
Founded as the Massachusetts Employers Insurance Exchange.
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1996
Became A.I.M. Mutual Insurance Company, a mutual insurer, and soon after began serving Massachusetts employers through the Commonwealth’s assigned risk workers’ compensation market.
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1996
Became a founding member of the Property and Casualty Initiative, a community loan fund supporting affordable housing and other community needs.
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2001
Expanded into New Hampshire.
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2005
Partnered with a national medical organization to study and address factors that affect an injured worker’s recovery.
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2013
Expanded into Connecticut.
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2014
Earned the AM Best Innovation Showcase Award for a wellness initiative developed for employers.
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2016
Earned an industry innovation award for helping injured workers manage chronic pain. Began the first of many community partnerships with Cradles to Crayons Boston.
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2017
Expanded into Vermont.
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2019
Expanded into Maine.
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2020
Maintained uninterrupted service to policyholders throughout the COVID-19 pandemic, earned CDC Nursing Home Infection Preventionist certifications to better support healthcare policyholders, and brought case management nurses in-house to strengthen claim support.
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2021
Expanded into Rhode Island, completing A.I.M. Mutual’s footprint across all six New England states
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2023
Expanded support for Kids’ Chance chapters throughout New England, helping provide scholarships to children of workers who suffer a serious or fatal workplace injury.
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2025
AM Best revised the companies’ Long-Term Issuer Credit Rating outlook to positive, reflecting continued financial strength, while our Agency Council marked five years of bringing broker perspectives into service and industry discussions.
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2026
Partnered with RISE, a national organization focused on insurance mentorship, as a corporate member.
Impact Beyond Insurance
Strengthening Communities Across New England
At A.I.M. Mutual, community support isn’t separate from who we are. It’s part of how we live our values.
Across New England, our team shows up for organizations and causes that create connection, strengthen local communities, and offer a hand up to those who need it most.
Talk to a Team That Knows Workers’ Comp
If you’re looking for workers’ comp expertise backed by real support, we’re here to help.