| WCWarner Chilcot Company | Fajardo | — | ◐ LIKELY ACTIVE |
| APAuro PR Inc | Caguas | 1–19 | ◐ LIKELY ACTIVE |
| BLBiotule LLC | Aguirre | — | ◐ LIKELY ACTIVE |
| LPLas Piedras (Puerto Rico) Facility | Las Piedras | 100–499 | ◐ LIKELY ACTIVE |
| LILeodi International INC. | San Juan | — | ◐ LIKELY ACTIVE |
Lets Burble INC | San Juan | — | ◐ LIKELY ACTIVE |
| MGMesser Gas Puerto Rico INC | Catano | — | ▲ REPORTED CLOSED |
| PLPratian LLC | Santa Isabel | — | ▲ REPORTED CLOSED |
| UMUniversal Manufacturing LLC | Vega Alta | — | ◐ LIKELY ACTIVE |
| BBBull Bond Mfg | Caguas | — | ◐ LIKELY ACTIVE |
| FCFrenda CORP | Trujillo Alto | 1–19 | ◐ LIKELY ACTIVE |
| ABAbbvie Biotechnology LTD | Barceloneta | 500+ | ◐ LIKELY ACTIVE |
| APAmo Puerto Rico Manufacturing INC. | Anasco | — | ◐ LIKELY ACTIVE |
| BDBecton Dickinson Caribe LTD | Cayey | 100–499 | ◐ LIKELY ACTIVE |
| ELEthicon, LLC | San Lorenzo | — | ◐ LIKELY ACTIVE |
| GDGoya de Puerto Rico, Inc. | Bayamon | — | ◐ LIKELY ACTIVE |
| IPIpr Pharmaceuticals INC. | Canovanas | 100–499 | ◐ LIKELY ACTIVE |
| JOJanssen Ortho LLC | Gurabo | 500+ | ◐ LIKELY ACTIVE |
| JOJanssen Ortho LLC Ortho Pharmaceutical Div | Manati | — | ◐ LIKELY ACTIVE |
| MPMaster Paints & Chemical Corporation | Guayanilla | — | ◐ LIKELY ACTIVE |
| MHMcneil Healthcare LLC | Las Piedras | — | ◐ LIKELY ACTIVE |
| MGMesser Gas Puerto Rico INC - Cataño | Catano | — | ◐ LIKELY ACTIVE |
| PPPfizer Pharmaceuticals LLC (vb) | Vega Baja | — | ◐ LIKELY ACTIVE |
| SPSchering-plough Products LLC | Las Piedras | — | ◐ LIKELY ACTIVE |
| SJSt Jude Medical Puerto Rico LLC | Caguas | 100–499 | ◐ LIKELY ACTIVE |
| ALAbbvie LTD | Barceloneta | — | ◐ LIKELY ACTIVE |
| AAAmbience Architectural Coatings, INC. | Vega Alta | — | ◐ LIKELY ACTIVE |
| CCCaribbean Chemical Industries CORP. | Penuelas | — | ◐ LIKELY ACTIVE |
| EMEcolab Manufacturing INC | Bayamon | — | ◐ LIKELY ACTIVE |
| ELEx Lax Puerto Rico INC | Humacao | 20–99 | ◐ LIKELY ACTIVE |
| IAInter American Resins Corporation | Vega Baja | — | ◐ LIKELY ACTIVE |
| LDLilly Del Caribe Pr-ii - Lilly Del Caribe Pr-ii | Carolina | — | ◐ LIKELY ACTIVE |
| MAMaga Agricultural LLC | Camuy | — | ◐ LIKELY ACTIVE |
| MPMaster Paints & Chemicals CORP | Guayanilla | — | ◐ LIKELY ACTIVE |
| MLMc Labs LLC | San Juan | — | ◐ LIKELY ACTIVE |
| MIMsd International Gmbh (pr Branch) LLC. | Arecibo | — | ◐ LIKELY ACTIVE |
| ODOmega & Delta CO INC | Carolina | — | ◐ LIKELY ACTIVE |
| POPharmalogic of Puerto Rico, INC. | San Juan | 20–99 | ◐ LIKELY ACTIVE |
| SSSartorius Stedim Filters INC | Yauco | — | ◐ LIKELY ACTIVE |
| TYTintas y Toners del Caribe, Inc | Caguas | — | ◐ LIKELY ACTIVE |
| ZMZimmer Manufacturing B V | Mercedita | 100–499 | ◐ LIKELY ACTIVE |
| AHAbbott Healthcare LTD | Barceloneta | — | ◇ UNVERIFIED |
| APAkzonobel Paints Puerto Rico INC (ici Paints Puerto Rico Inc) | Carolina | — | ◇ UNVERIFIED |
| APApp Pharmaceuticals Manufacturing, LLC | Barceloneta | — | ◇ UNVERIFIED |
| BABasf Agrochemicals Products Bv | Caguas | — | ◇ UNVERIFIED |
| BCBlu Caribe | Dorado | 100–499 | ◇ UNVERIFIED |
Bristol-myers Squibb Manufacturing CO | Barceloneta | — | ◇ UNVERIFIED |
| CHCardinal Health | Humacao | — | ◇ UNVERIFIED |
| CPColgate Palmolive of Puerto Rico INC | Guayama | — | ◇ UNVERIFIED |
| CLCordis LLC | San German | — | ◇ UNVERIFIED |