| 1606 PONCE DE LEON AVENUE, INC. | — | 63484 | 1986-06-12 | Active | |
| 21 CORPORATION | — | 62849 | 1986-04-10 | Canceled | HATO REY |
| A S P ELECTRICAL INC. | — | 64270 | 1986-09-23 | Canceled | PONCE |
| A-PLUS REALTY INC. | — | 63827 | 1986-08-04 | Dissolved | GUAYNABO |
| A. REALTY CORPORATION | — | 63197 | 1986-05-07 | Active | GUAYNABO |
| A.J. OSTER CARIBE, INC. | — | 7194 | 1986-08-05 | Merged | |
| ABUNDANT LIFE FELLOWSHIP CHURCH, INC. | — | 16541 | 1986-08-18 | Active | CAROLINA |
| ACADEMIA DE DIRECTORES MEDICOS DE PUERTO RICO, INC. | — | 16891 | 1986-12-01 | Active | SAN JUAN |
| ACADEMIA JULIO TORRES RODRIGUEZ, INC. | — | 16022 | 1986-02-04 | Canceled | COROZAL |
| ACOSTA ADJUSTMENT, INC. | — | 63546 | 1986-06-01 | Dissolved | SAN JUAN |
| ACTION GROUP CORPORATION | — | 62414 | 1986-02-27 | Canceled | TOA ALTA |
| ACUEDUCTO RURAL DOÑA ELENA, INC. | — | 24686 | 1986-09-23 | Canceled | |
| ACUEDUCTOS BARRIO GUAYABOTA, YABUCOA, INC. | — | 16903 | 1986-12-04 | Active | YABUCOA |
| ADCO INTERIOR CONTRACTORS CORP. | — | 62534 | 1986-03-14 | Canceled | BAYAMON |
| ADVISORS INVESTMENT GROUP, INC. | — | 63284 | 1986-06-06 | Canceled | |
| AGRICOLA SANTA ISABEL, INC. | — | 63816 | 1986-08-05 | Dissolved | SAN JUAN |
| AGRO-FLORA INTERNACIONAL, INC. | — | 62900 | 1986-04-14 | Canceled | |
| AGUEYBANA RATTAN CORPORATION | — | 62521 | 1986-03-07 | Dissolved | GUAYNABO |
| AIRTO, INC. | — | 65129 | 1986-12-12 | Dissolved | SAN JUAN |
| AKITA CLUB OF PUERTO RICO, INC. | — | 16387 | 1986-05-30 | Dissolved | SAN JUAN |
| ALCAR, INC. | — | 64408 | 1986-10-06 | Canceled | HATO REY SAN JUAN |
| ALMACEN DE MATTRESS ARZOLA, INC. | — | 62310 | 1986-02-14 | Canceled | |
| ALNOR CORP. | — | 64403 | 1986-09-18 | Canceled | MAYAGUEZ |
| ALTOS DE LA FUENTE DEVELOPMENT CORPORATION | — | 63751 | 1986-07-22 | Active | SAN JUAN |
| ALUMINUM DOORS MANUFACTURING, INC. | — | 66069 | 1986-11-13 | Canceled | |
| ALV CONSTRUCTION CORPORATION | — | 64800 | 1986-11-10 | Dissolved | GUAYNABO |
| ALVAREZ BRACERO ASSOCIATES, INC. | — | 63376 | 1986-06-18 | Active | SAN JUAN |
| AMANDA WENTWORTH CARIBBEAN, INC. | — | 7279 | 1986-12-05 | Canceled | HORMIGUEROS |
| AMBAR MOTORS DE PUERTO RICO, INC. | — | 62159 | 1986-01-31 | Active | SAN JUAN |
| AMCOR HEALTHCARE PACKAGING DE PUERTO RICO, INC. | — | 7243 | 1986-10-08 | Active | Humacao |
| AMERICAN INTERNATIONAL AVIATION, INC. | — | 7154 | 1986-07-02 | Withdrawn | SAN JUAN |
| AMERICAN SOCIETY OF AGRICULTURAL ENGINEERS THE PUERTO RICO SECTION, INC. | — | 16668 | 1986-09-15 | Dissolved | JUANA DÍAZ |
| ANALOG & DIGITAL COMMUNICATIONS, INC. | — | 64310 | 1986-09-24 | Canceled | GUAYNABO |
| ANIBAL DIAZ CONSTRUCTION, INC. | — | 61951 | 1986-01-02 | Active | CUPEY ALTO SAN JUAN |
| ANTILLAS REFRIGERATION & DISCOUNT CENTER, INC. | — | 64427 | 1986-10-02 | Active | ARECIBO |
| ANTILLES MOTORS REBUILDERS, INC. | — | 63860 | 1986-07-23 | Active | SAN JUAN |
| ANTILLES SCHOOL OF TECHNICAL CAREERS INC. | — | 65157 | 1986-12-23 | Active | SANTURCE |
| ANTONIO ORTIZ ROQUE Y ASOCIADOS, INC. | — | 63694 | 1986-05-16 | Active | SAN JUAN |
| ANTONIO RESTAURANT, INC. | — | 63911 | 1986-05-14 | Active | SAN JUAN |
| APPLIED COMPUTER SERVICES, INC. | — | 7121 | 1986-05-28 | Withdrawn | SAN JUAN |
| ARCHITECTURAL DEVELOPMENT-ONE CORPORATION | — | 62458 | 1986-03-05 | Active | HATO REY |
| ARH MATERIAL SUPPLY, INC. | — | 63567 | 1986-07-03 | Dissolved | CAGUAS |
| ASAMBLEA DE DIOS DE CATAÑO, INC. | — | 16677 | 1986-09-29 | Active | CATAÑO |
| ASAMBLEA DE IGLESIAS RENOVACION CRISTIANA PENTECOSTAL, INC. | — | 16096 | 1986-03-13 | Active | BAYAMÓN |
| ASOCIACION AGRICOLA NUEVA ERA, INC. | — | 62640 | 1986-03-25 | Active | LAS MARIAS |
| ASOCIACION AMERICANA DE PERSONAS RETIRADAS CAPITULO DE MAYAGUEZ #3937, INC. | — | 16739 | 1986-10-23 | Canceled | MAYAGUEZ |
| ASOCIACION BENEFICA DE LA COMUNIDAD BARRIADA LLUVERAS INC. | — | 16100 | 1986-02-10 | Active | YAUCO |
| ASOCIACION DE ACUPUNTURA MEDICA DE PUERTO RICO, INC. | — | 16654 | 1986-09-10 | Active | SAN JUAN |
| ASOCIACION DE ARBITROS DE BALONCESTO DE PUERTO RICO, INC. | — | 16224 | 1986-03-13 | Active | RIO PIEDRAS |
| ASOCIACION DE BIBLIOTECARIOS ESCOLARES DE PUERTO RICO INC. | — | 16349 | 1986-05-23 | Canceled | SAN JUAN |