| ADATH YESHURUN-MOGEN ABRAHAM CONGREGATION | — | D00524496 | 1900-01-01 | Suspended | |
| ADMIRAL-BUILDERS SAVINGS AND LOAN ASSOCIATION | — | D00281493 | 1900-01-01 | Merged | BALTIMORE |
| AGRICULTURAL AND MECHANICAL ASSOCIATION OF WASHINGTON COUNTY | — | D00252445 | 1900-01-01 | Dissolved | HAGERSTOWN |
| AISQUITH PRESBYTERIAN CHURCH | — | D01167667 | 1900-01-01 | Active | BALTIMORE CITY |
| ALBAUGH AND BABYLON GROCERY COMPANY OF CARROLL COUNTY | — | D00043356 | 1900-01-01 | Dissolved | WESTMINSTER |
| ALDERSGATE METHODIST CHURCH | — | D00043554 | 1900-01-01 | Merged | BALTIMORE CITY |
| AMERICAN TELEPHONE AND TELEGRAPH COMPANY OF BALTIMORE CITY | — | D02406726 | 1900-01-01 | Suspended | BALTIMORE CITY |
| AMERICAN TURNERS-BALTIMORE, INC | — | D00046052 | 1900-01-01 | Active | BALTIMORE |
| ANDREW CHAPEL UNITED METHODIST CHURCH | — | D00046516 | 1900-01-01 | Merged | BALTIMORE |
| ANGEL HILL CEMETERY COMPANY OF HARFORD COUNTY | — | D02574929 | 1900-01-01 | Active | HAVRE DE GRACE |
| ANN DEAN INSURANCE AGENCY, INC. | — | F01155670 | 1900-01-01 | Suspended | FAIRFAX |
| ANNAPOLIS FEDERAL SAVINGS BANK | — | F00262725 | 1900-01-01 | Suspended | |
| ANSHE EMUNAH MOSES MONTEFIORE HEBREW CONGREGATION | — | D00253393 | 1900-01-01 | Active | BALTIMORE |
| ARION GESANGVEREIN, INC | — | D00048231 | 1900-01-01 | Active | TOWSON |
| ASBURY UNITED METHODIST CHURCH OF ARNOLD, INCORPORATED | — | D00049213 | 1900-01-01 | Active | ARNOLD |
| ASBURY UNITED METHODIST CHURCH OF SALISBURY, MARYLAND | — | D00049254 | 1900-01-01 | Active | |
| ASHLAND PRESBYTERIAN CHURCH, INC | — | D07097686 | 1900-01-01 | Active | COCKEYSVILLE |
| ATLANTIC COAST LINE RAILROAD COMPANY | — | F00009548 | 1900-01-01 | Dissolved | BALTO. |
| ATLANTIC FINANCIAL FEDERAL CREDIT UNION | — | F00001289 | 1900-01-01 | Dissolved | BALTIMORE |
| ATLANTIC RICHFIELD COMPANY | — | F00016683 | 1900-01-01 | Merged | PHILADELPHIA |
| AUGSBURG LUTHERAN HOME OF MARYLAND, INC | — | D00050583 | 1900-01-01 | Active | FREDERICK |
| AUGUSTANNA EVANGELICAL LUTHERAN CHURCH | — | D00050609 | 1900-01-01 | Suspended | BALTIMORE |
| B'NAI ISRAEL CONGREGATION OF BALTIMORE, INC | — | D03396926 | 1900-01-01 | Active | BALTIMORE |
| B.P.S. INSURANCE & INVESTMENTS, INC. | — | D01887819 | 1900-01-01 | Suspended | WHEATON |
| BABCOCK PRESBYTERIAN CHURCH | — | D00051532 | 1900-01-01 | Active | BALTO |
| BALTIMORE BELT RAILROAD COMPANY | — | D00520288 | 1900-01-01 | Merged | JACKSONVILLE |
| BALTIMORE CEMETERY COMPANY | — | D00052357 | 1900-01-01 | Dissolved | BALTIMORE |
| BALTIMORE COUNTRY CLUB | Arts and entertainment | D00052712 | 1900-01-01 | Active | BALTIMORE |
| BALTIMORE FEDERAL FINANCIAL, F. S. A. | — | F00002097 | 1900-01-01 | Suspended | |
| BALTIMORE GENERAL DISPENSARY FOUNDATION, INC | — | D00053140 | 1900-01-01 | Active | BALTIMORE |
| BALTIMORE HEBREW CONGREGATION | — | D00053207 | 1900-01-01 | Active | BALTIMORE |
| BALTIMORE MONTHLY MEETING OF FRIENDS HOMEWOOD | — | D00254821 | 1900-01-01 | Active | BALTIMORE |
| BALTIMORE MONTHLY MEETING OF FRIENDS, STONY RUN | — | D00053439 | 1900-01-01 | Active | BALTIMORE |
| BALTIMORE PAINT & COLOR WORKS FEDERAL CREDIT UNION | — | F00261628 | 1900-01-01 | Merged | BALTIMORE |
| BALTIMORE WHOLESALE GROCERY COMPANY | — | D00054163 | 1900-01-01 | Dissolved | HANOVER |
| BANK OF DELMAR | — | D00038034 | 1900-01-01 | Merged | DELMAR |
| BAPTIST CHURCH EXTENSION SOCIETY OF MARYLAND | — | D00054478 | 1900-01-01 | Merged | BALTO |
| BAPTIST CONVENTION OF MARYLAND/DELAWARE, INC | — | D00054486 | 1900-01-01 | Active | CROWNSVILLE |
| BARNETT INTERNATIONAL CORPORATION | — | D01971589 | 1900-01-01 | Dissolved | COLUMBIA |
| BAYVIEW CEMETERY COMPANY OF HARFORD COUNTY | — | D03013042 | 1900-01-01 | Suspended | DARLINGTON |
| BEAVER CREEK CHRISTIAN CHURCH "DISCIPLES OF CHRIST | — | D00373167 | 1900-01-01 | Active | HAGERSTOWN |
| BEECHFIELD UNITED METHODIST CHURCH | — | D00061275 | 1900-01-01 | Suspended | BALTIMORE |
| BENEVOLA UNITED METHODIST CHURCH | — | D00944686 | 1900-01-01 | Active | BENEVOLA |
| BETHANY EVANGELICAL LUTHERAN CHURCH OF BALTIMORE CITY | — | D00554337 | 1900-01-01 | Dissolved | BALTO. CITY |
| BETHANY UNITED CHURCH OF CHRIST | — | D00063321 | 1900-01-01 | Suspended | |
| BETHEL AFRICAN METHODIST EPISCOPAL CHURCH OF CECIL COUNTY | — | D01543578 | 1900-01-01 | Suspended | ELKTON |
| BETHEL AFRICAN METHODIST EPISCOPAL CHURCH, INC | — | D00704551 | 1900-01-01 | Active | BALTIMORE CITY |
| BETHEL UNITED METHODIST CHURCH | — | D03331568 | 1900-01-01 | Suspended | A |
| BETHEL UNITED METHODIST CHURCH OF CHEWSVILLE | — | D07822919 | 1900-01-01 | Active | HAGERSTOWN |
| BETHESDA METHODIST CHURCH | — | D00063610 | 1900-01-01 | Suspended | |