| MADISON AUTOMOTIVE ENTERPRISES, INC. | G47021 | 1983-06-30 | Inactive | MADISON |
| MADISON AUTOMOTIVE REPAIR SERVICE LLC | L16000186032 | 2016-10-06 | Active | MADISON |
| MADISON BOOKS, INC. | P20000080125 | 2020-10-05 | Active | MADISON |
| MADISON BRICK ASSETS LLC | L16000011420 | 2016-01-15 | Active | MADISON |
| MADISON BROADCAST SYSTEM, INC. | H00697 | 1984-04-24 | Inactive | MADISON |
| MADISON BUILDER'S SUPPLY, INC. | P97000109150 | 1997-12-31 | Active | MADISON |
| MADISON BUILDING SUPPLY, INC. | 505470 | 1976-06-17 | Inactive | MADISON |
| MADISON CAPITAL CORP. | P05518 | 1985-04-01 | Inactive | MADISON |
| MADISON CARS LLC | L26000092446 | 2026-02-11 | Active | MADISON |
| MADISON CHAMBER OF COMMERCE INC. | N09000011649 | 2009-12-07 | Inactive | MADISON |
| MADISON CHIROPRACTIC CENTER, LLC. | L10000017822 | 2010-02-16 | Inactive | MADISON |
| MADISON CHIROTHERAPY, PLLC | L17000117019 | 2017-05-26 | Active | MADISON |
| MADISON CHURCH OF CHRIST, INC. | N14000007577 | 2014-08-13 | Active | MADISON |
| MADISON CLEANING SOLUTIONS LLC | L24000111117 | 2024-03-04 | Active | MADISON |
| MADISON COFFEE COMPANY, LLC | L22000039419 | 2022-01-20 | Active | MADISON |
| MADISON COMMERCIAL PROPERTIES, L.L.C. | L07000055249 | 2007-05-24 | Active | Madison |
| MADISON COMMUNITY BANCSHARES CORPORATION | P07000109037 | 2007-09-26 | Active | Madison |
| MADISON CONSULTING GROUP, INC. | F09000003811 | 2009-09-24 | Inactive | MADISON |
| MADISON COUNTRY CLUB, INC. | N04000004139 | 2004-04-26 | Inactive | MADISON |
| MADISON COUNTRY DAY SCHOOL LLC | L11000053433 | 2011-05-02 | Inactive | MADISON |
| MADISON COUNTY 4-H FOUNDATION, INC. | N12578 | 1985-12-17 | Active | MADISON |
| MADISON COUNTY AGRICULTURAL COOPERATIVE ASSOCIATION, INC. | U00030 | 1988-12-22 | Inactive | MADISON |
| MADISON COUNTY ANIMAL RESCUE ASSOCIATION, LLC | L23000327446 | 2023-07-11 | Active | MADISON |
| MADISON COUNTY ATHLETIC BOOSTERS' CLUB, INC. | N33682 | 1989-08-11 | Inactive | MADISON |
| MADISON COUNTY AUTO SALES AND REPAIRS, INC. | F55948 | 1981-11-24 | Inactive | MADISON |
| MADISON COUNTY BABE RUTH LEAGUE, INC. | N10000007225 | 2010-07-30 | Active | Madison |
| MADISON COUNTY BEEF CATTLEMEN'S ASSOCIATION, INC. | N96000001001 | 1996-02-23 | Active | MADISON |
| MADISON COUNTY CATTLEMEN'S ASSOCIATION, INC. | 790900 | 1965-02-08 | Inactive | MADISON |
| MADISON COUNTY CHAMBER OF COMMERCE & TOURISM, INC. | N09000011652 | 2009-12-07 | Inactive | MADISON |
| MADISON COUNTY CHAMBER OF COMMERCE INC | 717929 | 1970-01-20 | Active | Madison |
| MADISON COUNTY CHAMBER OF COMMERCE, INC. | N09000010356 | 2009-10-23 | Inactive | MADISON |
| MADISON COUNTY CHILDREN'S COMMISSION INC. | N01000002926 | 2001-04-25 | Inactive | MADISON |
| MADISON COUNTY CHRISTIAN MINISTERIAL ASSOCIATION, INC. | N13000009025 | 2013-10-04 | Active | MADISON |
| MADISON COUNTY COMMUNITY BANK | P99000022718 | 1999-03-11 | Active | MADISON |
| MADISON COUNTY CONCERNED CITIZENS INC. | N18000008653 | 2018-08-10 | Inactive | MADISON |
| MADISON COUNTY COUNTRY CLUB, LLC | L13000174274 | 2013-12-17 | Active | MADISON |
| MADISON COUNTY DEALS INC | P26000007895 | 2026-02-05 | Active | MADISON |
| MADISON COUNTY DEVELOPMENT COUNCIL, INC. | N99000001679 | 1999-03-12 | Active | MADISON |
| MADISON COUNTY FARM BUREAU, INC. | N12000008467 | 2012-08-31 | Active | MADISON |
| MADISON COUNTY FARM BUREAU, LAA | 790685 | 1952-09-12 | Inactive | MADISON |
| MADISON COUNTY FLORIDA CHAMBER OF COMMERCE & TOURISM INC. | N09000011650 | 2009-12-07 | Inactive | MADISON |
| MADISON COUNTY FLORIDA CHAMBER OF COMMERCE, INC. | N09000010355 | 2009-10-23 | Inactive | MADISON |
| MADISON COUNTY FLORIDA STORYTELLING, INC. | N18000004830 | 2018-05-03 | Inactive | MADISON |
| MADISON COUNTY FOUNDATION FOR EXCELLENCE IN EDUCATION, INC. | N47150 | 1992-02-04 | Active | MADISON |
| MADISON COUNTY HEALTH SERVICE, INC. | 739668 | 1977-07-14 | Active | MADISON |
| MADISON COUNTY HOSPITAL FOUNDATION, INC. | 739113 | 1977-05-19 | Inactive | MADISON |
| MADISON COUNTY HOSPITAL HEALTH SYSTEMS, INC. | 767866 | 1983-04-07 | Active | MADISON |
| MADISON COUNTY LITTLE LEAGUE, INC. | 740080 | 1977-09-07 | Inactive | MADISON |
| MADISON COUNTY PROPERTIES, INC. | P93000030977 | 1993-04-28 | Inactive | MADISON |
| MADISON COUNTY PROPERTIES, LLC | L10000017174 | 2010-02-15 | Inactive | MADISON |