Machias Savings Bank
- Street : 6 Penobscot Valley Ave.
- City : Lincoln
- Phone : (207) 794-2500
- Website: https://machiassavings.bank/
Magic City Med Shop
- Street : 166 Central Street, Millinocket
- City : Millinocket
- Phone : (207) 261-1004
- Website: https://www.magiccitymedshop.com
Mai’s Take Out
- Street : 35 Pine St.
- City : East Millinocket
- Phone : (207) 746-7224
Maine Avenue Manor
- Street : 110 Maine Ave.
- City : Millinocket
- Phone : (207) 621-7700
- Website: http://ccrealtymanagement.com
Maine Heritage Timber
- Street : 102 Penobscot Ave.
- City : Millinocket
- Phone : (207) 723-9200
- Website: http://maineheritagetimber.com
Maine Water Company
- Street : Route 11
- City : Millinocket
- Phone : (207) 723-6278
- Website: https://mainewater.com
Mainely Coffee, LLC
- Street : 47 Katahdin Ave.
- City : Millinocket
- Phone : (207) 723-8900
- Website: https://www.mainelycoffee.com
Matagamon Wilderness
- Street : P.O. Box 220
- City : Patten
- Phone : (207) 446-4635
- Website: https://www.matagamon.com/
Michael Michaud
- Street : 3 Birch St.
- City : East Millinocket
- Phone : Individual
Michael R. Crowley
- Street : 73 Water St.
- City : Millinocket
- Phone : Individual
Millinocket – Unified Performing Arts Boosters
- Street : 199 State Street
- City : Millinocket
- Phone : (207) 723-6430
- Website: https://www.facebook.com/Millinocket-Performing-Arts-527003194038274/
Millinocket Alumni Association
- Street : 199 State Street
- City : Millinocket
- Website: https://www.facebook.com/Millinocket-Alumni-Association-167771109947664/
Millinocket Fabrication & Machine
- Street : 432 Katahdin Ave.
- City : Millinocket
- Phone : (207) 723-9733
- Website: http://www.millinocketfab.com/
Millinocket Historical Society
- Street : 80 Central Street
- City : Millinocket
- Phone : (207) 723-5477
- Website: http://millinockethistoricalsociety.org/
Millinocket Memorial Library
- Street : 5 Maine Ave
- City : Millinocket
- Phone : (207) 723-7020
- Website: http://millinocketmemoriallibrary.org/
Millinocket Regional Hospital
- Street : 200 Somerset St.
- City : Millinocket
- Phone : (207) 723-5161
- Website: http://www.mrhme.org/
Millinocket Variety
- Street : 112 Central St
- City : Millinocket
- Phone : (207) 723-9332
- Website: https://www.facebook.com/Millinocket-Variety-1518670641733504
Moose Prints Gallery & Gifts
- Street : 102 Penobscot Avenue
- City : Millinocket
- Phone : (207) 279-6074
- Website: https://www.mooseprintsgallery.com/
Moose Woods Guide Service LLC
- Street : P.O. Box 83
- City : Millinocket
- Phone : (207) 723-1009
- Website: https://www.moosewoodsguideservice.com
Mt. Chase Lodge
- Street : 1517 Shin Pond Road
- City : Patten
- Phone : (207) 528-2183
- Website: https://mtchaselodge.com/
