Apply for a Business Certificate

City Clerk's Office

A business certificate must be filed for any person, partnership, or corporation conducting business in Cambridge under a name other than their own. The form must be signed before a Notary Public and returned to the.

City Clerk's Office
795 Massachusetts Avenue
Cambridge, MA 02139

Notice to Businesses applying for a Business Certificate the week of January 11, 2021

While City Hall is closed to the public, City Offices are not closed. Businesses who need to acquire a Business Certificate with the City Clerk’s office as part of their Sector Specific State Grant Application (due on Friday, January 15) can contact the Clerk’s Office for coordination.

  • Businesses that are looking for a copy of their existing Business Certificate can call the Clerk’s Office (617-349-4260) this Mon-Thu 8:30am-5:00pm and Friday 8:30am-12:00pm and a copy can be emailed.
  • Businesses that need a new business certificate or a renewal should fill out the online form and email the form to the City Clerk at The business would then need to follow up with the Clerks Office by phone (617-349-4260) to schedule notary and Certificate pick up.
    *Note: One type of picture identification is needed at time of pick up and notary.

For additional questions related to your Business Certificate, please visit or contact the Clerk’s at 617-349-4260 or

Additional Information

Business certificates are valid for four years and must be renewed at the City Clerk's Office. The cost to file is $50.

Page was last modified on 1/13/2021 3:45 PM
Contact Us

How can we help?

Please provide as much detail below as possible so City staff can respond to your inquiry:

As a governmental entity, the Massachusetts Public Records Law applies to records made or received by the City. Any information received through use of this site is subject to the same provisions as information provided on paper.

Read our complete privacy statement

Service Requests

Enter a service request via Commonwealth Connect for things like missed trash pickups, potholes, etc., click here