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| ASSOCIATED BUSINESS BROKERS OF MAINE | — | 19830149 D | 1982-08-02 | Suspended | WATERVILLE |
| ASSOCIATED BUSINESS TELEPHONE SYSTEMS CORP. | — | 19960174 F | 1995-08-28 | Withdrawn | AUGUSTA |
| ASSOCIATED CLEANING SERVICES, INC. | — | 19890455 D | 1988-07-18 | Suspended | BANGOR |
| ASSOCIATED COMPUTER TECHNICAL SERVICES, INC. | — | 19872442 D | 1987-04-23 | Suspended | KENNEBUNKPORT |
| ASSOCIATED CONSTRUCTION INC. | — | 20081794 D | 2008-06-26 | Dissolved | WESTBROOK |
| ASSOCIATED CONSTRUCTION SERVICES, INC. | — | 19800110 F | 1979-11-01 | Withdrawn | AUGUSTA |
| ASSOCIATED CREDIT SERVICES, INC. | — | 19930578 F | 1993-04-28 | Active | AUGUSTA |
| ASSOCIATED CREDITORS EXCHANGE, INC. | — | 19990104 F | 1998-07-27 | Withdrawn | AUGUSTA |
| ASSOCIATED CUSTOMS BROKERS, INC. | — | 19890062R | — | | |
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| ASSOCIATED DRYWALL, INC. | — | 19922302 D | 1992-06-25 | Suspended | GOULDSBORO |
| ASSOCIATED ELECTRIC | — | 19751047 D | 1975-05-21 | Active | PORTLAND, |
| ASSOCIATED EXCAVATING INCORPORATED | — | 19860896 D | 1985-11-08 | Suspended | PORTLAND |
| ASSOCIATED EXCHANGE LLC | — | 20122594DC | 2012-02-21 | Dissolved | MINOT |
| ASSOCIATED EYE CARE | — | 19870218M | — | | |
| ASSOCIATED EYE CARE EQUIPMENT LLC | — | 19990496DC | 1999-01-12 | Active | PORTLAND |
| ASSOCIATED EYE CARE FACILITY, INC. | — | 19940136 D | 1993-07-27 | Active | PORTLAND |
| ASSOCIATED EYE CARE OPHTHALMOLOGY, P.A. | — | 20002539 D | 2000-06-12 | Dissolved | PORTLAND |
| ASSOCIATED EYE CARE P.A. | — | 19950092 D | 1994-07-18 | Active | BERWICK |
| ASSOCIATED FINANCIAL GROUP, LLC | — | 20170029FC | 2016-07-11 | Merged | AUGUSTA |
| ASSOCIATED FISHERIES OF MAINE | — | 19560025ND | 1956-04-06 | Dissolved | HARPSWELL, |
| ASSOCIATED FOOTCARE, P.A. | — | 19880170 D | 1987-07-31 | Active | AUBURN |
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| ASSOCIATED FRIEND'S SPIRITUALIST CHURCHES OF MAINE, INC. | — | 19810038ND | 1980-08-13 | Dissolved | FAIRFIELD |
| ASSOCIATED GENERAL CONTRACTORS OF MAINE EDUCATION FOUNDATION | — | 19890368ND | 1989-02-13 | Active | AUGUSTA |
| ASSOCIATED GENERAL CONTRACTORS OF MAINE, INC. | — | 19510042ND | 1951-09-14 | Active | AUGUSTA |
| ASSOCIATED GRAPHICS, INC. | — | 19871753 D | 1987-01-20 | Merged | PORTLAND |
| ASSOCIATED GROCERS OF MAINE, INC. | — | 19530003 D | 1953-03-16 | Dissolved | |
| ASSOCIATED GROCERS OF NEW ENGLAND, INC. | — | 19760166 F | 1976-01-15 | Active | FRYEBURG |
| ASSOCIATED HARDWARE, INC. | — | 19951355 D | 1995-01-11 | Dissolved | ELLSWORTH |
| ASSOCIATED HEALTH RESOURCES, INC. | — | 19921824 D | 1992-04-23 | Active | AUGUSTA |
| ASSOCIATED HOSPITAL SERVICE OF MAINE | — | 19400039ND | 1939-03-02 | Merged | Portland |
| ASSOCIATED INDEPENDENT MECHANICALS LIMITED LIABILITY COMPANY | — | 19960000DC | 1995-07-03 | Suspended | PORTLAND |
| ASSOCIATED K & G CONTRACTING, LLC | — | 20196738DC | 2019-05-06 | Dissolved | FALMOUTH |
| ASSOCIATED LAWN CARE SERVICES, INC. | — | 19891714 D | 1989-01-24 | Suspended | BANGOR |
| ASSOCIATED LEASE CORP. | — | 202500842 F | 2025-03-21 | Active | PORTLAND |
| ASSOCIATED LOBSTER SALES, INC. | — | 19500001 D | 1950-12-08 | Dissolved | ADDISON |
| ASSOCIATED MANAGING AGENTS PREMIUM FINANCE COMPANY | — | 19890004 F | 1988-07-06 | Withdrawn | AUGUSTA |
| ASSOCIATED MATERIALS, LLC | — | 20080544FC | 1984-02-23 | Active | AUGUSTA |
| ASSOCIATED MECHANICAL CONTRACTORS, INC. | — | 19860316 F | 1985-12-02 | Withdrawn | AUGUSTA |
| ASSOCIATED MEDIA PRODUCTIONS INC. | — | 19901693 D | 1990-03-08 | Suspended | |
| ASSOCIATED MEDIA SERVICES, LLC | — | 20073964DC | 2007-06-26 | Dissolved | NEW GLOUCESTER |
| ASSOCIATED MEDICAL SERVICES, INC. | — | 19851197 D | 1985-01-17 | Dissolved | LEWISTON |
| ASSOCIATED NETWORK OF INDEPENDENT HAULERS/RECYCLERS, INC. | — | 19930090ND | 1992-09-14 | Suspended | PORTLAND |
| ASSOCIATED NETWORK PARTNERS, INC | — | 20100130 F | 2009-08-31 | Merged | AUGUSTA |
| ASSOCIATED NEWS FEATURES, INC. | — | 19850831 D | 1984-11-26 | Suspended | PORTLAND |
| ASSOCIATED PACKAGING, INC. | — | 20190509 F | 2018-12-31 | Active | PORTLAND |
| ASSOCIATED PHARMACIES, INC. | — | 20100353 F | 2009-10-27 | Active | AUGUSTA |