Petremex
- Specialists in marine dredging and the production of aggregate, gravel and sand. [English/Spanish]
- http://www.petremex.com

Impamerica SA de CV
- Chihuahua-based company which designs and manufactures stone products, including cantera, travertine, marble, and cast stone. Describes products, finishes, and shipping requirements. [English/Spanish]
- http://www.impamerica.com

Cemex
- Worldwide producer of cement, ready-mix concrete and aggregates. Includes product and solution information, news and links to related sites.
- http://www.cemex.com/

Riho
- Manufacturer of gypsum ceiling tiles.
- http://riho.com.mx/

Dragas y Excavaciones
- Heavy machinery rental, including excavators, cranes, and draglines. Also does excavations and site preparation. Provides photos and specifications of equipment.
- http://naftaconnect.com/dragas/

Mexico Solar
- Offers design, installation, and maintenance of solar energy home heating and water heating devices.
- http://www.mexicosolar.com/

Constructora Quimica Industrial
- An independent company dedicated to providing engineering and manufacturing services for process equipment in the chemical, petrochemical, food and related industries.
- http://www.cqi.com.mx/

Grupo Garza Ponce
- Construction company building and planning projects for urbanization, industrial parks, office buildings, and commercial centers.
- http://www.grupogp.com.mx/