| Calaf M.f. Central Mouserate - |
Mahuter |
PR |
| Central Coloso, Incorporated - |
Aguadilla |
PR |
| Central Igualdad, Incorporated - |
Mayaguez |
PR |
| Central Playa Grande - |
Vieques |
PR |
| Cerveria Corona - |
San Juan |
PR |
| D.e. Ford And Company - |
San Juan |
PR |
| Guanica Centrale - |
Ensenada |
PR |
| Mario Mercado E Hijos - |
Guayanilla |
PR |
| Plato Sugar Company - |
Aguadilla |
PR |
| S. Anell Maso - |
Aguadilla |
PR |
| Sucesion J. Serralles - |
Ponce |
PR |
| American Cyanamid Company - Dexon Plant - |
Manati |
PR |
| Gibson Caribe Inc - |
Luquillo |
PR |
| Brown Root Caribe - |
Guayanilla |
PR |
| Luvi Trucking - |
San Juan |
PR |
| Ponce Hotel - |
Ponce |
PR |
| U. S. Atomic Energy Commission - |
Ricon |
PR |
| Chevron Phillips Chemical Puerto Rico Core - |
Guayama |
PR |
| Carmen Centrale - |
San Juan |
PR |
| Central Coloso, Incorporated - |
San Juan |
PR |
| Central Juanita, Incorporated - |
Bayamon |
PR |
| Central Plazuela - |
Barceloneta |
PR |
| Cia Azucarera Eljempo - |
Humacao |
PR |
| Del Monte De Puerto Rico, Incorporated - |
San Juan |
PR |
| Guanica Centrale - |
Guanica |
PR |
| Mario Mercado E Hizos - |
Guayanilla |
PR |
| Ponce Electric Company - |
Ponce |
PR |
| Sabrinos De Ezquiaga - |
San Juan |
PR |
| Sucesores De Roses And Company - |
Arecibo |
PR |
| General Electric Co. Plating Facility - |
Palmer |
PR |
| Antes Edificio Cafeteres De Puer - |
Ponce |
PR |
| Caribbean Insulation Inc - |
San Juan |
PR |
| North Brothers - |
Guayama |
PR |
| Procon International S. A. - |
Santurce |
PR |
| U. S. Atomic Energy Commission - |
Rincon |
PR |
| Garcomin - |
San Juan |
PR |
| E.r. Squibb Sons Inc. - |
Humacao |
PR |
| Carmen Centrale - |
San Juan |
PR |
| Central Columbia - |
Maunabo |
PR |
| Central La Fayette - |
Arroyo |
PR |
| Central Pasto Viejo And United Porto Rico Sugar Company - |
Caquas |
PR |
| Cia Sucrerie Centl Coloso - |
Aguadilla |
PR |
| Durite Corporation, Limited - |
Arecibo |
PR |
| Guanica Mill - |
Ensenada |
PR |
| Marques And Company - |
Arecibo |
PR |
| Ponce Railway And Light Company - |
Ponce |
PR |
| San Juan And Rio Piedras Railroad - |
San Juan |
PR |
| Sucs. C. And J. Fantuzzi Central Lafayette - |
Arroyo |
PR |
| Palo Seco Power Station - |
Palo Seco |
PR |
| Armstrong Contracting Supply Corporation - |
Ponce |
PR |
| Carribbean Refining - |
San Juan |
PR |
| Ocf - |
San Juan |
PR |
| Puerto Rico Chemical Company - |
Arecibo |
PR |
| U.c.c.i. - |
Ponce |
PR |
| Garcomin - |
Ponce |
PR |
| Union Carbide Caribe Incorporated - |
Guayanilla |
PR |
| Carona Brewing Corporation - |
San Juan |
PR |
| Central Constancia - |
San Juan |
PR |
| Central Los Canas - |
Arecibo |
PR |
| Central Roig. - |
Humacao |
PR |
| Cia Sucrerie Cinternational Coloso - |
Agndilla |
PR |
| Eli Lilly Industries, Incorporated - |
Carolina |
PR |
| Gustavo Mourraille Central Porto Real - |
Vieques |
PR |
| Mayaguez Light And Ice Company - |
Mayaguez |
PR |
| Portilla Corporation - |
San Juan |
PR |
| Santa Isabel Sugar Company - |
San Juan |
PR |
| Sugar Corporation Of Puerto Rico - |
Mercedita |
PR |
| Saline Water Conversion Corp. - |
Ponce |
PR |
| Felco Puerto Rico Inc - |
San Juan |
PR |
| Daniel F. Young Inc - |
Santurce |
PR |
| P. R. Water Resources Authority - San Juan Steam Power Plant - Units 9 10 - |
San Juan |
PR |
| Puerto Rico Medical Center - Central Building - |
Rio Piedras |
PR |
| U.c.c.i. - |
San Juan |
PR |
| J. M. G. Inc. - |
Suan Juan |
PR |
| Brown Root Caribe, Incorporated - |
Guayanilla |
PR |
| Cayey Sugar Company - |
San Juan |
PR |
| Central Corsica - |
Rincon |
PR |
| Central Los Canos - |
San Juan |
PR |
| Central Rufina - |
Graysville |
PR |
| Compagnie Des Sucreries De Porto Rico - |
Ponce |
PR |
| Esperanza Central Sugar Company - |
Naugabo |
PR |
| Ingenio Natividad - |
Sancti Spiritus |
PR |
| Mayaguez Light, Power And Ice Company, Incorporated - |
Mayaguez |
PR |
| Porto Rico International Corporation - |
Central Los Canos Arecibo |
PR |
| Sobrinos De Exyuiaga - |
San Juan |
PR |
| Union Carbide - |
Ponce |
PR |
| Us Navy Sewage Treatment Plant - |
Roosevelt Roads |
PR |
| Borinquen Insulation Co Inc - |
San Turce |
PR |
| Esso Standard Oil Co - |
Las Piedras |
PR |
| Puerto Rico Water Resources Authority - Aguirre Power Plant - Unit 1 - |
Salinas |
PR |
| S. M. H. Trading Co. - |
Arroyo |
PR |
| Union Carbide - |
Ponce |
PR |
| Burke Wilhelm - |
San German |
PR |
| Central Aguirre Sugar Company - |
San Juan |
PR |
| Central Cortada - |
Jogos |
PR |
| Central Machete Company - |
Central Machate, Guayama |
PR |
| Central San Cristobal - |
Maguabo |
PR |
| Compania Azucarera Del Camuy Camluy - |
Arecibo |
PR |
| Export C. And J. Fantauzzi - |
Arroyo |
PR |
| Jaime Federico Calaf Colazo - |
Manati |
PR |
| Mayaquez Light And Ice Company - |
Mayaguez |
PR |
| Porto Rico Railway, Light, And Power Company - |
Santuice |
PR |
| Sobrinos De Exyuiaga - |
Central Progresso |
PR |
| Utuado Sugar Company - |
Utuado |
PR |
| Caribe Desalting Plant - |
|
PR |
| Waterman Steamship Lines - |
San Turce |
PR |
| Fuller Austin Borinquen - |
Yabucoa |
PR |
| Puerto Rico Water Resources Authority - Aguirre Power Plant - Unit 1 - |
Salinas |
PR |
| Puerto Rico Water Resources Authority - San Juan Steam Plant - |
San Juan |
PR |
| Union Carbide Caribe Inc. - |
Penuelas |
PR |
| Central Igualdad - |
Mayaguez |
PR |
| Central Aguirre Sugar Company - |
Jobos |
PR |
| Central Cortada - |
Ponce |
PR |
| Central Mercedita, Incorporated - |
Ponce |
PR |
| Central San Vicente - |
San Juan |
PR |
| Compania Azucarera Del Toa - |
Toa Baja |
PR |
| Fajardo Sugar Company - |
Fajardo |
PR |
| Juncos Central Company - |
Humacao |
PR |
| Mcmurtrie Guiler Company - |
San Juan |
PR |
| Porto Rico Railway, Light, And Power Company, Santurce Power Plant - |
San Juan |
PR |
| Soc Anonina De Luz Electrica - |
San Juan |
PR |
| Yabucoa Sugar Company - |
San Juan |
PR |
| Squibb Sons Pharmaceutical Plant - |
|
PR |
| Gonzales Plant - |
Guanica |
PR |
| Garcia Commercial Inc - |
Ponce |
PR |
| Puerto Rico Water Resources Authority - Aguirre Power Plant - Unit 2 - |
Salinas |
PR |
| Puerto Rico Water Resources Authority - San Juan Steam Plant - Bldg. No. 292 - |
San Juan |
PR |
| Union Carbide Caribe Inc. - |
Ponce |
PR |
| Union Carbide Caribe, Incorporated - |
Guayanilla |
PR |
| Central Aguirre Sugar Company - |
San Juan |
PR |
| Central Cortada - |
Santa Isabel |
PR |
| Central Mercedita, Incorporated - |
Yabucoa |
PR |
| Central Santa Barbara Jayuya Development Company - |
Jayuya |
PR |
| Compania Azucarera El Ejemplo - |
Humacao |
PR |
| Fajardo Sugar Company - |
Central Canovanes |
PR |
| Juncos Central Company - |
Humacao |
PR |
| Melchior Armstrong And Dessau - |
San Juan |
PR |
| Puerto Rico Railway Light And Power Company - |
Santurce |
PR |
| Socied Cerveceria Antaillawa - |
Mayaguez |
PR |
| Yabucoa Sun Oil Company - |
San Juan |
PR |
| Puerto Rico Electric Power Authority (a/k/a Mayaguez Power Ice Co) - |
Mayaguez |
PR |
| Union Carbide Caribe Inc - |
Ponce |
PR |
| Garcia Commercial Inc - |
San Juan |
PR |
| Puerto Rico Water Resources Authority - Aguirre Power Plant - Unit 6 - |
Salinas |
PR |
| Puerto Rico Water Resources Authority - San Juan Steam Plant - Unit 7 - |
San Juan |
PR |
| Union Carbide Co - |
Ponce |
PR |
| Aguirre Corporation Of New York - |
Jobos |
PR |
| Central Aguirre Sugar Company - |
Aguirre |
PR |
| Central Cortadosanta - |
Isable |
PR |
| Central Mercedita, Incorporated - |
Mercedita |
PR |
| Central Santa Juana - |
Caguas |
PR |
| Compania Industrial - |
Yabucoa |
PR |
| Fajardo Sugar Company - |
Central Canovanos |
PR |
| Juncos Central Company - |
San Juan |
PR |
| Mohasco Industries, Incorporated, Plant - |
Mayaguez |
PR |
| Preston Division - |
Central Preston |
PR |
| Soller Sugar Company - |
Arecibo |
PR |
| Yabucoa Sun Oil Company - |
Yabucoa |
PR |
| Puerto Rico Water Resources Authority - Aguire Station - |
Ponce |
PR |
| Caribean Refining Co - |
San Juan |
PR |
| Garcia Commercial Inc - |
San Turce |
PR |
| Puerto Rico Water Resources Authority - Aguirre Power Plant - Unit 6 - |
Salinas |
PR |
| Puerto Rico Water Resources Authority - San Juan Steam Plant - Unit 10 - |
San Juan |
PR |
| Urb Tres Monjitas - |
Hato Rey |
PR |
| Andres Crosse - |
San Juan |
PR |
| Central Aguirre Sugar Company - |
Jobos |
PR |
| Central Defense - |
San Juan |
PR |
| Central Mercedita Refinery - |
Ponce |
PR |
| Central Victoria, Incorporated - |
San Juan |
PR |
| Compania Industrial Azucarera De Yabucoa - |
Yabocoa |
PR |
| Fayardo Sugar Company - |
Fajardo |
PR |
| Loiza Sugar Company - |
Loiza |
PR |
| Montreal Engineering Company - |
Santurce |
PR |
| Puerto Rico Development - |
San Juan |
PR |
| South Porto Rico Sugar Company - |
Guania Central Ensenda |
PR |
| Yugo Central Coloso - |
Aguadilla |
PR |
| Puerto Rico Water Resources Authority - South Coast Steam Plant - |
Ponce |
PR |
| Puerto Rico Water Resources Authority - Aguirre Power Plant - Unit 1 - |
Salinas |
PR |
| Garco Export Co. - |
San Juan |
PR |
| Puerto Rico Water Resources Authority - Aguirre Power Plant - Unit 2 - |
Salinas |
PR |
| South Coast Steam Plant - |
Guayanilla |
PR |
| Urb Tres Monjitas - Fredrico Costa St. - |
Hato Rey |
PR |
| Antilles Brewing Company - |
Carolina |
PR |
| Central Aguirre Sugar Company - |
Jogos |
PR |
| Central Ejemplo Antonio Roig - |
Humacao |
PR |
| Central Mercedita, Incorporated - |
Ponce |
PR |
| Centrale Juanita - |
San Juan |
PR |
| Compania Industrial Azucarera De Yabucoa - |
Yabucoa |
PR |
| Finlay Brothers And Weymouth Trading Company - |
San Juan |
PR |
| Loiza Sugar Company - |
San Juan |
PR |
| Neptune Packing - |
Mayaguez |
PR |
| Puerto Rico Distilling Company - |
Arecibo |
PR |
| South Puerto Rico Sugar - |
Guanica |
PR |
| Baxter Travenol Labs. Inc. - |
Aibonito |
PR |
| Telares De Puerto Rico Inc. (a/k/a Star-kist Carbide) - |
Ponce |
PR |
| Alcoa Steamship Company - |
San Turce |
PR |
| Garco Export Company Inc - |
San Juan |
PR |
| Puerto Rico Water Resources Authority - Aguirre Power Plant - Unit 6 - |
Salinas |
PR |
| South Coast Steam Plant - Units 5 And 6 - |
Guayanilla |
PR |
| Urbanizacion Tres Monjitas - |
Hato Rey |
PR |
| Atlantic Industries, Incorporated - |
Mayaguez |
PR |
| Central Boca Chica - |
Juana Diaz |
PR |
| Central Eureka, Incorporated - |
Homigueras |
PR |
| Central Monserrate - |
Manati |
PR |
| Centrale Los Canos - |
Arecibo |
PR |
| Cooperativa Azucarera Los Canos - |
Arecibo |
PR |
| Fortuna Sugar Factory - |
Ponce |
PR |
| Machete Central Sugar Company - |
Guayama |
PR |
| New Corsica Central Corporation - |
Mayaguez |
PR |
| Puerto Rico Pulp And Paper Company - |
San Juan |
PR |
| South Puerto Rico Sugar Company - |
Ensenada |
PR |
| Arecibo Observatory - |
Arecibo |
PR |
| Puerto Rico Water Resources Authority - Palo Seco Station - |
San Juan |
PR |
| Alcoa Steamship Company - Plant No. 3120 - |
San Juan |
PR |
| Garco Export Inc - |
San Juan |
PR |
| Puerto Rico Water Resources Authority - Palo Seco Station - Unit 3 - |
Catano |
PR |
| South Coast Steam Plant - Unit 6 - |
Guayanilla |
PR |
| West India Shipping Co. - |
Lisas |
PR |
| Bacardi Corporation Of America - |
San Juan |
PR |
| Central Boca Chica - |
Ponce |
PR |
| Central Eureka, Incorporated - |
Mayaguez |
PR |
| Central Pasto Viejo And United Porto Rico Sugar Company - |
Caquas |
PR |
| Centrale Monserate - |
Manati |
PR |
| Corp Azucarera Sauri And Subtra Central Constanc Ia - |
Ponce |
PR |
| G. Amsinck Company - |
V Mourraille |
PR |
| Machete Central Sugar Company - |
Arroya |
PR |
| Nueva Compania Azucarera Gomez Mena - |
Central Mercedita |
PR |
| Puerto Rico Railway Light And Power Company - |
Santurce |
PR |
| South Puerto Rico Sugar Company, Trading Corporation - |
Ensenada |
PR |
| Cayey Waste Water Treatment Plant - |
Cayey |
PR |
| Puerto Rico Water Resources Authority - San Juan Steam Plant - |
San Juan |
PR |
| American Union Transport - |
Guayanilla |
PR |
| Garcomin - |
San Juan |
PR |
| Puerto Rico Water Resources Authority - San Juan Steam Plant - Unit 7 - |
San Juan |
PR |
| South Coast Steam Plant - Unit 6 - |
Guayanilla |
PR |
| South Coast Steam Plant - |
Guayanilla |
PR |
| Bacardi Corporation Of America - |
San Juan |
PR |
| Central Cambalache - |
Arecibo |
PR |
| Central Eureka Plantation - |
Mayaguez |
PR |
| Central Pasto Viejo, Incorporated - |
San Juan |
PR |
| Cervecera India - |
Anasco |
PR |
| Czarnikow Rionda Company, Incorporated - |
San Juan |
PR |
| George I. Finlay - |
San Juan |
PR |
| Manati Sugar Company - |
Manati |
PR |
| Peurto Rico Water Resources Authority - |
San Juan |
PR |
| Puerto Rico Water Resources - |
Santurce |
PR |
| South Puerto Rico Sugar Company, Trading Corporation - |
Guanica |
PR |
| Baxter Travenol Labs. Inc. - |
Culebra |
PR |
| Sun Oil Company - |
Yabucoa |
PR |
| Borinquen Insulation Co Inc. - |
Santurce |
PR |
| Garcomin - Garcia Commercial Inc - |
San Juan |
PR |
| Pan Atlantic Steamship Company - |
Ponce |
PR |
| South Coast Steam Plant - Unit 6 - |
Guayanilla |
PR |
| Borinquen Insulation Co., Inc. - |
San Juan |
PR |
| Barcelo Marques Company - |
Camuy |
PR |
| Central Camuy - |
San Juan |
PR |
| Central Fortuna - |
Porto |
PR |
| Central Peurto Real - |
Vieques |
PR |
| Cerveceria India - |
Mayaguez |
PR |
| Czarnikow Rionda Company, Incorporated - |
Yabucoa |
PR |
| Guanica Centrale - |
Ensenada |
PR |
| Manati Sugar Company - |
Manati |
PR |
| Pfizer Pharmaceuticals, Incorporated - |
Barceloneta |
PR |
| Rico Chemical Corporation - |
Ponce |
PR |
| Sr. Don Manuel Leon Parra - |
Ponce |
PR |
| Travenol Laboratories - |
Culebra |
PR |
| Puerto Rico Dry Dock - |
Parada Santurce |
PR |
| Brown Root Caribe - |
Guayanilla |
PR |
| Jmg Inc. - |
San Juan |
PR |
| Phillips Puerto Rico Core Inc - |
Guayama |
PR |
| South Coast Steam Plant - Units 5 And 6 - |
Guayanilla |
PR |
| Borinquen Insulation Co., Inc. - |
Santurce |
PR |
| Barcelo Marques Company - |
Arecibo |
PR |
| Central Coloso, Incorporated - |
Aguadilla |
PR |
| Central Igualdad, Incorporated - |
San Juan |
PR |
| Central Playa Grande - |
Vieques |
PR |
| Cerveceria Real - |
Mayaguez |
PR |
| D.e. Ford And Company - |
Central Aguirre |
PR |
| Guanica Centrale - |
Ensenada |
PR |
| Marcus Mason And Company - |
Arecibo |
PR |
| Pittsburgh Plate And Glass Industries - |
Guayanilla |
PR |
| Riera, Toro And Von Twistern, Incorporated - |
Central Coloso |
PR |
| Sucesion J. Serralles - |
Central Mercedita |
PR |
| Isabel Segunda Water System Pipeline - |
Isabel Segunda |
PR |
| Puerto Rico Olefins Company - |
Renuelas |
PR |
| Brown Root Caribe - |
Guayanilla |
PR |
| Juan Maria Garcia Inc - |
San Juan |
PR |
| Plata Sugar - |
San Juan |
PR |
| Sun Oil Company - |
Yabucoa |
PR |
| Brown Root Caribe - |
Guayanilla |
PR |
