| SASuper Asphalt Pavement CORP #1 | Guaynabo | PR | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| SASuper Asphalt Pavement, Plant 2 | Canovanas | PR | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| TPTapi Puerto Rico INC | Guayama | PR | Chemical Manufacturing325412 | — | ◇ UNVERIFIED |
| TGTech Group De Puerto Rico, INC. | Cidra | PR | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| TKThermo King De Puerto Rico | Ciales | PR | Machinery Manufacturing333415 | — | ◇ UNVERIFIED |
| TFTonka Footwear CO INC | Humacao | PR | Leather and Allied Product Manufacturing316219 | — | ◇ UNVERIFIED |
| URUcar Resinas Caribe INC. | Bayamon | PR | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| VHVelazquez Hydraulic Services | Rio Piedras | PR | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| WCWarner Chilcott Company LLC | Fajardo | PR | Chemical Manufacturing325412 | — | ◇ UNVERIFIED |
| WLWyeth-ayerst Lederle | Carolina | PR | Chemical Manufacturing325412 | — | ◇ UNVERIFIED |
| 3H3 H Corporation | San Juan | PR | Textile Mills313110 | — | ◐ LIKELY ACTIVE |
| 3G3rd Generation Enterprise, INC. | Carolina | PR | Beverage and Tobacco Product Manufacturing312140 | — | ◐ LIKELY ACTIVE |
| AAA & a Group INC | Barranquitas | PR | Beverage and Tobacco Product Manufacturing312140 | — | ◐ LIKELY ACTIVE |
| AIABB Installation Products Caribe | Vega Baja | PR | Electrical Equipment, Appliance & Component Manufacturing335991 | 100-499 | ◐ LIKELY ACTIVE |
| AAAbbVie - APL | Barceloneta | PR | Chemical Manufacturing325412 | 100-499 | ◐ LIKELY ACTIVE |
| ADAluminios De America LLC | Cabo Rojo | PR | Nonmetallic Mineral Product Manufacturing327215 | — | ▲ REPORTED CLOSED |
| ADAluminios De Pr | Punta Santiago | PR | Primary Metal Manufacturing331318 | 100-499 | ◐ LIKELY ACTIVE |
| AFAmcor Flexibles Healthcare North America | Carolina | PR | Plastics and Rubber Products Manufacturing326112 | 100-499 | ◐ LIKELY ACTIVE |
| AAnasco | Anasco | PR | Miscellaneous Manufacturing339112 | 20-99 | ◐ LIKELY ACTIVE |
| ALAnro LLC | Toa Baja | PR | Fabricated Metal Product Manufacturing332321 | — | ◐ LIKELY ACTIVE |
| ASArchie's Sangria INC. | Ponce | PR | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| ASArchie's Sangria INC. | Ponce | PR | Beverage and Tobacco Product Manufacturing312140 | — | ◐ LIKELY ACTIVE |
| AMArdent Mills Guaynabo | Guaynabo | PR | Food Manufacturing311211 | 100-499 | ◐ LIKELY ACTIVE |
| ASAsphalt Solutions Hatillo, LLC | San Juan | PR | Petroleum and Coal Products Manufacturing324121 | — | ◐ LIKELY ACTIVE |
| ASAsphalt Solutions Toa Alta, LLC | Toa Alta | PR | Petroleum and Coal Products Manufacturing324121 | — | ◐ LIKELY ACTIVE |
| AIAstro Industrial Supply, INC. | San Juan | PR | Fabricated Metal Product Manufacturing332618 | — | ◐ LIKELY ACTIVE |
| APAstro Pak Corporation - Puerto Rico | Bayamon | PR | Fabricated Metal Product Manufacturing332813 | 1-19 | ◐ LIKELY ACTIVE |
| AIAurora Industries LLC | Camuy | PR | Apparel Manufacturing315990 | — | ◐ LIKELY ACTIVE |
| AIAurora Industries LLC | Orocovis | PR | Apparel Manufacturing315990 | — | ◐ LIKELY ACTIVE |
| AFAurorita Food & Spirits | Guaynabo | PR | Beverage and Tobacco Product Manufacturing312140 | — | ◐ LIKELY ACTIVE |
| ABAV Barceloneta | Barceloneta | PR | Miscellaneous Manufacturing339112 | 500+ | ◐ LIKELY ACTIVE |
| AAymojito | Aibonito | PR | Beverage and Tobacco Product Manufacturing312140 | — | ◐ LIKELY ACTIVE |
| BHBallester Hermanos Inc. | Dorado | PR | — | — | ◐ LIKELY ACTIVE |
| BHBallester Hermanos, Inc. | Catano | PR | — | — | ◐ LIKELY ACTIVE |
| B2Bar 2 Go | Ponce | PR | Beverage and Tobacco Product Manufacturing312140 | — | ◐ LIKELY ACTIVE |
| BABASF Agricultural Products de PR | Manati | PR | Chemical Manufacturing325320 | 100-499 | ◐ LIKELY ACTIVE |
| BGBaxter Guayama | Guayama | PR | Chemical Manufacturing325412 | 100-499 | ◐ LIKELY ACTIVE |
| BHBaxter Healthcare | Aibonito | PR | Miscellaneous Manufacturing339112 | 500+ | ◐ LIKELY ACTIVE |
| BLBearco, LLC | Cidra | PR | Beverage and Tobacco Product Manufacturing312140 | — | ◐ LIKELY ACTIVE |
| BLBearco, LLC | Cidra | PR | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| BBBetter Blinds INC | Caguas | PR | Furniture and Related Product Manufacturing337920 | — | ◐ LIKELY ACTIVE |
| BYBlanco Y Riera, INC | San Juan | PR | Textile Mills313310 | — | ◐ LIKELY ACTIVE |
| BABodega Andreu-sole | Ensenada | PR | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| BEBodegas Espanolas Argentinas CORP | Canovanas | PR | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| BEBodegas Espanolas Argentinas CORP | Canovanas | PR | Beverage and Tobacco Product Manufacturing312140 | — | ◐ LIKELY ACTIVE |
| BIBoehringer Ingelheim Animal Health Puerto Rico LLC | Barceloneta | PR | Chemical Manufacturing325412 | 100-499 | ◐ LIKELY ACTIVE |
| BPBravo Promotional Media LLC | Vega Baja | PR | Textile Product Mills314999 | — | ◐ LIKELY ACTIVE |
Bristol-Myers Squibb - Puerto Rico Guaynabo | Guaynabo | PR | Chemical Manufacturing325412 | 20-99 | ◐ LIKELY ACTIVE |
| BCBway Cidra | Cidra | PR | Plastics and Rubber Products Manufacturing326199 | 20-99 | ◐ LIKELY ACTIVE |
| BGBy George, Inc. | Trujillo Alto | PR | Food Manufacturing311612 | — | ◐ LIKELY ACTIVE |