Abraham Ferretería Industrial
- Industrial supply store featuring everything from power tools to woodworking and metalworking machinery.
- http://www.industrialabraham.com/index1.htm

National Engineering Inc.
- Sell and service of fire protection systems.
- http://www.PuertoRicoSuppliers.com/NationalEngineering

Cuadrado Alfombras
- Specializing in floors and carpets for hotels, hospitals, businesses, and individuals.
- http://www.cuadradoalfombras.com

La Changa Decor Block
- Manufacturers of decorative ornaments for your patio, columns, moldings, ornamental blocks, copins, statues, and other products.
- http://lachanga.net/

Steel and Pipes, Inc.
- Retailers and fabricators of structural steel, aluminum, galvanized steel, ornamental panels, accessories, railings and PVC fences.
- http://www.steelandpipes.com

Roberts & Schaefer Company
- Since 1903 we have designed and built hundreds of material handling systems, like this one in Guayama, to meet energy needs in Puerto Rico and around the world.
- http://www.r-s.com/projects/0G007R.htm

Danosa Caribbean, Inc.
- Roofing materials manufacturer for modified asphalt roof projects.
- http://www.danosapr.com/

Construction Inspectors
- Engineers provide inspections of new residences before you buy or construct.
- http://www.angelfire.com/co3/Inspectors/english.html

Atlas Electrical Service
- Company of electrical contractors providing residential and commercial services.
- http://www.prtc.net/~atlas1/

Bermúdez and Longo, S.E.
- Electrical and mechanical contractors providing services to industries and companies.
- http://www.bermudez-longo.com/

Plom Electric
- Distributors of electrical and plumbing products in Puerto Rico and the Caribbean.
- http://www.plomelectric.com/

Concretek
- Provides new approach and materials to concrete building and manufacturing.
- http://netdial.caribe.net/~concrtek/indexing.htm

Diversified Products and Development of Puerto Rico
- Group of companies dedicated to private housing developments through special partnerships and to the representation of American manufacturer's products.
- http://www.dpdpr.com

Puerto Rico Action and Quality Corporation
- Sales, representation and distributorship of commercial and industrial doors, materials handling equipment, storage and retrieval systems and residential garage doors.
- http://www.praqco.com/

Roger Electric Co.
- Stock and distribution of electrical supplies for construction projects.
- http://www.rogerelectric.com/

J.C. Supply Co. Inc.
- Wholesaler and retailer of specialty hardware equipment.
- http://www.laddersandstairs.com

Architectural Experts, Corp.
- Supplier, manufacturer and installer of skylight systems, storefronts and architectural metal systems.
- http://www.ArchitecturalExperts.com

Vassallo Industries
- Manufacturer and distributor of PVC pipes and accessories, related plastics products and resin furniture.
- http://www.vassalloindustries.com/

Industrial Electric Specialties, Inc.
- Product line of switches, connectors, enclosures, fuses and control panels. Distributors of Square D / Telemecanique, Yokogawa , Rittal, Grafoplast and Ferraz Shawmut products.
- http://www.icon-pr.com/ies/

Empresas Nido
- Distributors and manufacturers of building supplies and hardware products.
- http://www.ranido.com

Empresas Lausell
- Manufacturer of windows and doors, distributor of construction materials and plumbing fixtures offering on-line service for architects, contractors and builders.
- http://www.lausell.com/