| DARIEN COMMUNITY ASSOCIATION INCORPORATED | — | 0099938 | 1929-10-31 | Active | DARIEN |
| DEPTULA TRUCKING COMPANY, THE | — | 0013322 | 1929-12-27 | Revoked | |
| DEVOE REALTY COMPANY THE | — | 0083605 | 1929-08-23 | Revoked | |
| DILWORTH-CORNELL-QUEY POST,NO. 102 OF THE AMERICAN LEGION, DEPARTMENT OF CONNECTICUT, MANCHESTER, CO | — | 0062040 | 1929-12-26 | Active | MANCHESTER |
| DYER CEMETERY ASSOCIATION INCORPORATED THE | — | 0254229 | 1929-03-01 | Active | |
| EAST CEMETERY ASSOCIATION OF HARWINTON INCORPORATED THE | — | 0254231 | 1929-07-29 | Active | |
| EAST WOODSTOCK LIBRARY ASSOCIATION INC., THE | — | 0053981 | 1929-10-03 | Active | EAST WOODSTOCK |
| ELECTRIC BOAT COMPANY | — | 0085108 | 1929-01-10 | Merged | |
| ELLINGTON VOLUNTEER FIRE DEPARTMENT, INCORPORATED THE | — | 0054118 | 1929-06-19 | Active | ELLINGTON |
| ELMWOOD REALTY COMPANY, THE | — | 0015580 | 1929-12-12 | Dissolved | |
| ESTA'S INCORPORATED | — | 0016061 | 1929-06-28 | Dissolved | HARTFORD |
| FAIRFIELD LAND AND TITLE COMPANY THE | — | 0090206 | 1929-06-18 | Revoked | |
| FAULK-MARCOLINI POST 113 AMERICAN LEGION, INCORPORATED | — | 0062087 | 1929-07-01 | Active | OLD SAYBROOK |
| FEDERATED GARDEN CLUBS OF CONNECTICUT, INCORPORATED THE | — | 0054440 | 1929-09-25 | Active | WALLINGFORD |
| FERRY LANE REALTY CORPORATION THE | — | 0017063 | 1929-02-11 | Dissolved | WESTPORT |
| FIRST CONGREGATIONAL CHURCH OF PLAINFIELD THE | — | 0112212 | 1929-12-27 | Active | |
| FLAT ROCK CORPORATION, THE | — | 0017436 | 1929-10-29 | Active | RIDGEFIELD |
| FOXON COMMUNITY FIRE COMPANY, INC. THE | — | 0062091 | 1929-06-12 | Revoked | |
| FRANK MARTIN & SONS, INCORPORATED | — | 0018008 | 1929-01-15 | Dissolved | |
| GENERAL ELECTRIC DISTRIBUTING CORPORATION | — | 0085160 | 1929-09-16 | Merged | |
| GEORGETOWN VOLUNTEER FIRE COMPANY, THE | — | 0054715 | 1929-01-08 | Active | Redding |
| GESNER EQUIPMENT CORPORATION, THE | — | 0019320 | 1929-09-05 | Dissolved | NONE |
| GOOD WILL GRANGE, NO. 127, PATRONS OF HUSBANDRY, INCORPORATED | — | 0055291 | 1929-11-07 | Dissolved | HEBRON |
| GRAY-DICKINSON POST NO. 59, AMERICAN LEGION, INCORPORATED | — | 0055327 | 1929-07-16 | Active | WINDSOR |
| GREENWICH KENNEL CLUB, INCORPORATED, THE | — | 0055476 | 1929-07-16 | Active | Norwalk |
| GREENWICH POST, NO. 29, AMERICAN LEGION, INCORPORATED | — | 0055487 | 1929-07-16 | Active | |
| GRIGLUN,INCORPORATED | — | 0085343 | 1929-06-21 | Dissolved | NONE |
| GUYOTT COMPANY THE | — | 0085503 | 1929-01-23 | Merged | |
| H. KASDEN & SONS INC. | — | 0020753 | 1929-01-02 | Merged | |
| HAMDEN HALL SCHOOL, INCORPORATED, THE | — | 0055621 | 1929-06-06 | Active | HAMDEN |
| HARTFORD CLAMP COMPANY THE | — | 0088638 | 1929-08-22 | Revoked | |
| HARTFORD NEIGHBORHOOD CENTERS, INCORPORATED | — | 0134081 | 1929-12-20 | Active | Hartford |
| HATFIELD INSURANCE AGENCY INCORPORATED | — | 0021582 | 1929-05-24 | Active | Fairfield |
| HEARING IMPROVEMENT CENTER, INC | — | 0100094 | 1929-10-31 | Merged | |
| HEIRLOOM LABORATORIES, INC. | — | 0070462 | 1929-01-31 | Revoked | |
| HENRY G BENOWITZ, INCORPORATED | — | 0021851 | 1929-05-31 | Revoked | |
| HILLIARD-JONES-COOKSON POST NO. 66, INC. | — | 0099106 | 1929-07-10 | Active | Clinton |
| HOLO-KROME SCREW CORPORATION | — | 0085891 | 1929-04-30 | Merged | |
| HOLY CROSS CHURCH OF NEW MILFORD, CONN. | — | 0063711 | 1929-10-18 | Dissolved | |
| HOLY TRINITY GREEK CATHOLIC CHURCH, THE | — | 0063727 | 1929-04-27 | Active | |
| HOLY TRINITY ORTHODOX CHURCH OF DANBURY, CONNECTICUT, INC. | — | 0112414 | 1929-01-30 | Active | |
| HULL PRINTING COMPANY, INCORPORATED THE | — | 0022842 | 1929-02-18 | Revoked | |
| HUSSMANN CORPORATION | — | 0075440 | 1929-12-09 | Active | BRIDGETON |
| INDEPENDENT OIL COMPANY OF CONNECTICUT, INCORPORATED THE | — | 0090298 | 1929-07-22 | Merged | NONE |
| INDIAN MOUNTAIN SCHOOL, INCORPORATED, THE | — | 0056107 | 1929-01-21 | Active | LAKEVILLE |
| INDUSTRIAL FINANCE COMPANY | — | 0072508 | 1929-09-18 | Merged | |
| ITALIAN CALVARY CONGREGATIONAL CHURCH, THE | — | 0063780 | 1929-02-05 | Active | |
| ITALIAN SOCIETY OF DUCHESSA D'AOSTA, INCORPORATED, THE | — | 0056243 | 1929-02-25 | Dissolved | |
| JANE A. DELANO POST, NO. 7, THE AMERICAN LEGION, DEPARTMENT OF CONNECTICUT, INCORPORATED | — | 0094810 | 1929-03-19 | Dissolved | NONE |
| KHAKUM WOOD ASSOCIATION, INCORPORATED, THE | — | 0056425 | 1929-06-10 | Active | Fairfield |