The Corporations Book

A list of corporations subject to taxation in Massachusetts
Effective Date

Release Date

January 1, 2023

May 30, 2023

The Corporations Book, a list of corporations subject to taxation in Massachusetts, is published annually by the Division of Local Services. This data can be accessed using DLS's Corporation Book Online Search page or by viewing one of the Data Files available on this page. 

The Corporation Book Online Search lets you search for Massachusetts corporations, financial institutions or insurance companies using keywords. The search results can be viewed and exported in Microsoft Excel format. 

Click the links at the right of this page to view the full Corporations Book, all Financial Institutions or all Insurance Companies. When viewing a text file, you can save the text by right-clicking and selecting Save As. To download the data in Excel format, use the Corporation Book Online Search instead.

Notice to Assessors from Senior Deputy Commissioner Sean Cronin
Corporation Book Online Search
Secretary of State's Corporations Database

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