A look at the shifts in market share of the top ten private passenger auto cos. in Mass.
The following are the latest movements and trends in the market share of the top ten private passenger automobile insurance companies in Massachusetts. The aim is to provide a snapshot of what is happening in the market along with a review of the overall shifts and trends that are happening within the private passenger automobile marketplace. The data is provided courtesy of the Commonwealth Automobile Reinsurers, the statistical agent for motor vehicle insurance in the Commonwealth of Massachusetts.
Since the charts speak for themselves, there is limited analysis, let us know if you find this helpful.
A look at the market share of the top 20 insurers as of November 2014, the most recent month for data
| Company Name | Exposures | Market Share |
| Commerce | 1,092,897 | 26.33% |
| Liberty Mutual | 493,662 | 11.89% |
| Safety | 442,984 | 10.67% |
| Arbella | 383,186 | 9.23% |
| Plymouth Rock | 245,412 | 5.91% |
| GEICO | 240,296 | 5.79% |
| Metropolitan | 181,965 | 4.38% |
| Amica Mutual | 135,993 | 3.28% |
| Hanover | 135,862 | 3.27% |
| USAA | 129,158 | 3.11% |
| Progressive | 113,718 | 2.74% |
| The Premier | 109,534 | 2.64% |
| Quincy Mutual | 77,598 | 1.87% |
| Allstate | 73,798 | 1.78% |
| Norfolk and Dedham Mutual | 52,404 | 1.26% |
| Vermont Mutual | 42,502 | 1.02% |
| National Grange | 37,883 | 0.91% |
| Encompass | 29,317 | 0.71% |
| Mass Homeland | 19,311 | 0.47% |
| State Farm | 19,104 | 0.46% |
A look at the market share for the top 10 companies writing private passenger auto in Massachusetts
The top ten private passenger auto insurance companies in November 2004 (ten years ago)
