| BETHESDA UNITED METHODIST CHURCH OF BROWNINGSVILLE, MONTGOMERY COUNTY MARYLAND | — | D00256032 | 1900-01-01 | Active | |
| BETHESDA UNITED METHODIST CHURCH OF SALISBURY, MARYLAND | — | D00063628 | 1900-01-01 | Active | SALISBURY |
| BLUE RIDGE INSURANCE COMPANY | — | D00064782 | 1900-01-01 | Suspended | COLUMBIA |
| BOARD OF BENEFICENCE OF ST. JOHN'S INDEPENDENT METHODIST PROTESTANT CHURCH, IN THE CITY OF BALTIMORE | — | D00826008 | 1900-01-01 | Suspended | BALTIMORE |
| BOARD OF TRUSTEES OF THE ROCKVILLE PRESBYTERIAN CHURCH OF MONTGOMERY COUNTY | — | D07190846 | 1900-01-01 | Active | ROCKVILLE |
| BOHEMIAN AMERICAN SAVINGS AND LOAN ASSOCIATION, INC. | — | D00008144 | 1900-01-01 | Merged | |
| BORDEN MINING COMPANY | — | D00065763 | 1900-01-01 | Active | CUMBERLAND |
| BORING VOLUNTEER FIRE COMPANY, INC | — | D00065797 | 1900-01-01 | Merged | BORING |
| BROADWAY METHODIST CHURCH | — | D00067264 | 1900-01-01 | Suspended | BALTO. |
| BROOKLYN BIBLE CHAPEL | — | D00596445 | 1900-01-01 | Active | BROOKLYN |
| BROOKLYN UNITED METHODIST CHURCH | — | D00067553 | 1900-01-01 | Merged | BALTIMORE |
| BROOKVIEW CEMETERY CO. OF CECIL COUNTY | — | D00067728 | 1900-01-01 | Suspended | RISING SUN |
| BROWNINGSVILLE CORNET BAND INCORPORATED | — | D18038257 | 1900-01-01 | Active | GERMANTOWN |
| BUSH CREEK CHURCH OF THE BRETHERN OF MONROVIA, FREDERICK COUNTY, MARYLAND, INCORPORATED | — | D02280626 | 1900-01-01 | Active | MONROVIA |
| CABIN JOHN UNITED METHODIST CHURCH | — | D00116780 | 1900-01-01 | Active | CABIN JOHN |
| CALVARY UNITED METHODIST CHURCH | — | D00069815 | 1900-01-01 | Active | FREDERICK |
| CALVARY UNITED METHODIST CHURCH OF BALTIMORE CITY | — | D00069732 | 1900-01-01 | Suspended | BALTO. |
| CALVERT HALL COLLEGE OF BALTIMORE CITY | — | D00222588 | 1900-01-01 | Active | BALTIMORE |
| CALVERT SCHOOL, INCORPORATED | Educational services | D00060665 | 1900-01-01 | Active | BALTIMORE |
| CAMBRIDGE LODGE NO. 66 OF THE ANCIENT FREE AND ACCEPTED MASONS OF THE STATE OF MARYLAND | — | D00827188 | 1900-01-01 | Active | A |
| CAMELOT FREIGHT BROKERAGE, INC. | — | D01968593 | 1900-01-01 | Suspended | COLUMBIA |
| CAREY MACHINERY AND SUPPLY COMPANY, INC. | — | D00060798 | 1900-12-24 | Dissolved | BALTIMORE |
| CARING HANDS OF EMMITSBURG, INCORPORATED | — | D07066673 | 1900-01-01 | Suspended | EMMITSBURG |
| CARMELITE SISTERS OF BALTIMORE | — | D07609969 | 1900-01-01 | Active | BALTIMORE |
| CAROLINE SAVINGS & LOAN ASSOCIATION | — | D00281584 | 1900-01-01 | Dissolved | BALTIMORE CITY |
| CARROLL COUNTY BANK AND TRUST COMPANY | — | D00356972 | 1900-01-01 | Merged | WESTMINSTER |
| CARROLLTON BANK | — | D00038133 | 1900-04-10 | Suspended | COLUMBIA |
| CATOCTIN EPISCOPAL PARISH, A MARYLAND RELIGIOUS CORPORATION | — | D00807909 | 1900-01-01 | Active | THURMONT |
| CATONSVILLE OPERATING ASSOCIATION, INC. | — | D00056143 | 1900-01-01 | Suspended | CATONSVILLE |
| CATONSVILLE PRESBYTERIAN CHURCH | — | D00056150 | 1900-01-01 | Active | CATONSVILLE |
| CATONSVILLE UNITED METHODIST CHURCH | — | D00056135 | 1900-01-01 | Active | CATONSVILLE |
| CEDARVILLE ASSEMBLY OF GOD | — | D00231019 | 1900-01-01 | Active | |
| CENTRABANK | — | D01404367 | 1900-01-01 | Merged | BALTIMORE |
| CENTRAL PRESBYTERIAN CHURCH OF THE CITY OF BALTIMORE | — | D00057125 | 1900-01-01 | Active | BALTIMORE COUNTY, TOWSON |
| CENTRE ENCAMPMENT 31, INDEPENDENT ORDER OF ODD FELLOWS, INC | — | D00415380 | 1900-01-01 | Suspended | ELLICOTT CITY |
| CENTRE LODGE NO.40, INDEPENDENT ORDER OF ODD FELLOWS | — | D00415398 | 1900-01-01 | Active | ELLICOTT CITY |
| CENTRE STREET UNITED METHODIST CHURCH | — | D00223412 | 1900-01-01 | Suspended | CUMBERLAND |
| CHAPPELL ENTERPRISES, INC. | — | F00019307 | 1900-01-01 | Suspended | BLADENSBERG |
| CHARITABLE MARINE SOCIETY OF BALTIMORE INC | — | D01092576 | 1900-01-01 | Active | PHOENIX |
| CHARITY LODGE NO. 58 KNIGHTS OF PYTHIAS OF WESTMINSTER, CARROLL COUNTY | — | D00503441 | 1900-01-01 | Suspended | WESTMINSTER |
| CHESAPEAKE COMPANY, INCORPORATED | — | D00058917 | 1900-01-01 | Dissolved | PRINCE FREDERICK |
| CHESAPEAKE CONFERENCE ASSOCIATION OF SEVENTH DAY ADVENTISTS | — | F00261339 | 1900-12-03 | Active | COLUMBIA |
| CHESTNUT GROVE PRESBYTERIAN CHURCH OF BALTIMORE COUNTY | — | D00059667 | 1900-12-04 | Active | PHOENIX |
| CHILDREN'S FRESH AIR SOCIETY, INC. | — | D00223990 | 1900-01-01 | Suspended | BALTIMORE CITY |
| CHIZUK AMUNO CONGREGATION | — | D00116616 | 1900-01-01 | Active | BALTIMORE |
| CHRIST CHURCH FOUNDATION, INC. | — | D00439299 | 1900-01-01 | Suspended | W OWINHGS MILLS |
| CHRIST EVANGELICAL LUTHERAN CHURCH OF GRANTSVILLE | — | D00116707 | 1900-01-01 | Suspended | GRANTSVILLE |
| CHRIST LUTHERAN CHURCH OF BALTIMORE CITY, MARYLAND | — | D02304822 | 1900-01-01 | Active | BALTIMORE |
| CHRIST METHODIST CHURCH OF BALTIMORE COUNTY | — | D02304830 | 1900-01-01 | Active | HALETHORPE |
| CHRIST REFORMED CHURCH | — | D00116814 | 1900-01-01 | Active | CAVETOWN |