2nd Look 2025: Market Share For MA Auto Marketplace

Commerce continues to be the largest Private Passenger Auto Insurer in MA

Published every other month, Agency Checklists’ CAR Updates review the latest data on the current state of the Private Passenger Automobile Insurance marketplace. For our second look of the year, this update reviews the market share data as of December 2024, the latest date for which complete data is available.

In terms of what the data shows, as of December 2024, Commerce continues to hold the largest share of the private passenger auto insurance market, with 19.02% market share and 936,254 exposures, maintaining a strong lead over its competitors. GEICO follows with a 12.61% market share and 620,576 exposures, while Progressive (9.78%) and Safety (9.63%) remain close competitors, each with over 470,000 exposures. Notably, Plymouth Rock (7.70%) and Arbella (7.25%) also hold significant positions in the market.

The top ten insurers collectively dominate the sector, accounting for more than 75% of total exposures. Hanover, Metropolitan, and Norfolk and Dedham Mutual round out the middle tier, each controlling between 2% and 3% of the market, while smaller carriers such as Green Mountain, Trumbull, and Bankers Standard each hold less than 0.5% market share. The total market exposures amount to 4,921,462, highlighting the competitive nature of the Massachusetts auto insurance sector, with a clear concentration of business among the leading insurers. The total market exposures stand at 4,921,462 as of the last month of 2024.

As always, many thanks to the Commonwealth Automobile Reinsurers, which acts as the statistical agent for motor vehicle insurance in the Commonwealth of Massachusetts and provides Agency Checklists with all the data presented here.

Private Passenger Auto Insurers Ranked by Premiums & Market Share

Company Name	Exposures	Market Share
COMMERCE	936,254	19.02%
GEICO	620,576	12.61%
PROGRESSIVE	481,494	9.78%
SAFETY	474,013	9.63%
PLYMOUTH ROCK	379,043	7.70%
ARBELLA	356,676	7.25%
LIBERTY MUTUAL	259,444	5.27%
STANDARD FIRE	256,772	5.22%
U S A A	203,543	4.14%
AMICA MUTUAL	148,228	3.01%
HANOVER	127,838	2.60%
METROPOLITAN	121,993	2.48%
NORFOLK AND DEDHAM MUTUAL	96,868	1.97%
QUINCY MUTUAL	88,819	1.80%
ALLSTATE	76,952	1.56%
AMERICAN FAMILY	52,334	1.06%
VERMONT MUTUAL	51,659	1.05%
FOREMOST	32,217	0.65%
PREFERRED MUTUAL	25,174	0.51%
STATE FARM	23,934	0.49%
GREEN MOUNTAIN	21,521	0.44%
TRUMBULL	14,251	0.29%
BANKERS STANDARD	14,014	0.28%
PURE	12,691	0.26%
CINCINNATI	12,593	0.26%
FARM FAMILY	8,669	0.18%
INCLINE	6,134	0.12%
MARKEL AMERICAN	5,748	0.12%
ELECTRIC	3,175	0.06%
FIREMEN’S INS CO	2,374	0.05%
AMERICAN INTERNATIONAL	2,181	0.04%
HARLEYSVILLE WORCESTER	1,539	0.03%
MIDDLESEX	1,395	0.03%
TOKIO	1,176	0.02%
AMERICAN FAMILY HOME	164	0.00%
AMERICAN BANKERS	8	0.00%

Agency Checklists’ Retrospective of the PPA Marketplace

The following side-by-side comparisons allow our readers to review the state of the Private Passenger Auto Insurance Marketplace over the past decade.

The first four side-by-side comparisons show the December 2024 marketplace versus the same marketplace in Year-End 2023, Year-End 2022, Year-End 2021, and Year-End 2020.

Following these graphs are two additional comparisons between the top 10 insurers in December 2024 versus the top 10 insurers five years earlier in 2019 and then again from a decade ago in 2014.