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Headquarters location update

Attn. Portland and New Haven clients:

As you may have heard, we have moved our Portland office to our new national headquarters at 2211 Congress Street in Portland, Maine. Our new location delivers expanded meeting space at a centralized location that benefits clients both near and far. 

While we still are not able to receive visitors, we hope to soon, and we are open in a limited way, receiving mail and getting ready to be open (as the pandemic allows) in the coming months. 

For all mail, including paper invoices and bill payments, please use:
PO Box 1100
Portland, ME 04104-1100

For deliveries to our national headquarters, please use:
2211 Congress Street
Portland, ME 04102

For our Hamden, CT clients, your local office remains at 9 Washington Avenue for personal visits when the office is open. For billing correspondence, please use the PO Box address or electronic options.

Please consider electronic correspondence:

  • Have you signed up for electronic payments yet? It’s easy to do. Click on “make a payment” in the website footer to get started. 
  • Already use electronic payments? Don’t forget to update the address in your Accounts Payable software, if applicable. 
  • To set up direct ACH payments or ask any other questions, email our Accounts Receivable team at
  • Vendors: You may email Accounts Payable invoices to

Thank you for doing business with BerryDunn!

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