| AMERICAN GIRL FITNESS CENTER OF MISSISSIPPI, INC. | 433693 | 1979-10-04 | Dissolved | — |
| American Girl Hustler LLC | 1170729 | 2019-03-02 | Dissolved | Hazlehurst |
| AMERICAN GIRL SERVICE, INC. | 433694 | 1969-06-09 | Revoked | WILMINGTON |
| AMERICAN GIRL UNIFORMS, INC. | 307516 | 1979-11-01 | Revoked | OAK PARK |
| AMERICAN GLASS AUTO SUPPLIES CO., INC. | 636732 | 1996-12-11 | Dissolved | — |
| AMERICAN GLASS COMPANY | 307517 | 1976-01-30 | Active | COLUMBUS |
| American Glass Services LLC | 1254449 | 2021-01-15 | Active | Saucier |
| AMERICAN GLASS SERVICES, LLC | 739438 | 2003-09-19 | Dissolved | GULFPORT |
| American Glass Services, LLC | 1195568 | 2019-12-10 | Dissolved | Gulfport, |
| AMERICAN GLASS SERVICES-PICAYUNE, LLC | 739436 | 2003-09-18 | Active | PICAYUNE |
| American Global LLC | 1440314 | 2024-04-30 | Active | Madison |
| American Global Resources, LLC | 890008 | 2006-04-06 | Active | Petal |
| American Global Security, Inc. | 1509381 | 2025-10-01 | Active | JACKSON |
| AMERICAN GOLD & SILVER INVESTMENTS, INC. | 307518 | 1980-12-24 | Dissolved | — |
| American Goodies LLC | 1156752 | 2018-09-11 | Dissolved | — |
| American Government Services Corporation | 948202 | 2009-04-20 | Canceled | — |
| AMERICAN GOVERNMENTAL RECIPROCAL INSURANCE EXCHANGE ATTORNEY-IN-FACT, INC. | 563659 | 1989-05-16 | Dissolved | — |
| American Grain Systems Inc | 1165791 | 2019-01-08 | Revoked | Cleveland |
| American Granite and Tile, LLC | 994458 | 2012-01-17 | Dissolved | MADISON |
| American Graphene Institute | 1128615 | 2017-09-22 | Dissolved | Oxford |
| AMERICAN GRAPHIC PRODUCTS, INC. | 500085 | 1982-01-18 | Revoked | LEXINGTON |
| American Graphics Custom Screen Printing & Embroidery LLC | 964052 | 2010-03-30 | Active | Jackson |
| American Graphics Properties, LLC | 1340452 | 2022-05-17 | Active | Hattiesburg |
| AMERICAN GRAPHICS SYSTEMS, INC. | 729523 | 2003-02-17 | Dissolved | — |
| AMERICAN GRAPHICS, INC. | 594979 | 1993-02-17 | Dissolved | Tupelo |
| American Graphx LLC | 964756 | 2010-04-14 | Active | Ellisville |
| American Graphx LLC | 1206093 | 2020-03-31 | — | ELLISVILLE |
| AMERICAN GRATE HEATER COMPANY | 433695 | 1928-11-08 | Inactive | — |
| AMERICAN GREAT WALL L.L.C. | 656308 | 1998-05-11 | Dissolved | — |
| American Green Technology Inc | 1025832 | 2013-08-09 | Revoked | Clarksdale |
| American Green Technology SE, LLC | 985970 | 2011-07-11 | Active | Canton |
| American Green Technology, Southeast, Inc. | 972883 | 2010-10-08 | Dissolved | — |
| American Green Wholesale LLC | 1286061 | 2021-06-01 | Dissolved | Biloxi |
| AMERICAN GREETINGS CORPORATION | 307519 | 1980-11-17 | Active | Madison |
| AMERICAN GREYHOUND ASSOCIATION, INC | 581213 | 1991-06-27 | Active | PICKENS |
| American Grid, LLC | 1216013 | 2020-06-10 | Revoked | Gulfport |
| AMERICAN GROCERIES, INC. OF MISS. | 433696 | 1925-08-05 | Inactive | — |
| AMERICAN GROCERS SOCIETY, INC. | 433697 | 1919-06-10 | Inactive | — |
| American Group L.J., L.L.C. | 968905 | 2010-07-12 | Dissolved | Vicksburg |
| AMERICAN GROUP LEGAL, INC. | 104517 | 1987-03-16 | Revoked | BIRMINGHAM |
| AMERICAN GUARANTEE SURETY, INC. | 732455 | 2003-04-17 | Canceled | Madison |
| AMERICAN GUARD SERVICES, INC. | 618926 | 1995-06-06 | Dissolved | PASCAGOULA |
| American Guard Services, Inc. | 1127632 | 2017-09-11 | Active | Madison |
| AMERICAN GUARD SERVICES, INC. | 629189 | 1996-04-17 | Dissolved | — |
| American Guardian Insurance Services, Inc. | 1045258 | 2014-07-21 | Active | Gulfport |
| American Guardian Solutions LLC | 1302434 | 2021-09-09 | Active | Flowood |
| American Guardian Title & Escrow, LLC | 1163087 | 2018-12-03 | Withdrawn | RIDGELAND |
| American Guardian Title USA. Inc. | 1515477 | 2025-11-03 | Active | JACKSON |
| AMERICAN GUARDIAN WARRANTY SERVICES, INC. | 706857 | 2001-09-10 | Active | Gulfport |
| AMERICAN GUILD OF ORGANISTS | 627208 | 1996-02-26 | Active | JACKSON |