CalPortland is a cement, aggregates and ready-mixed concrete producer headquartered in Summerlin, Nevada, with operations across California, Arizona, Nevada, Oregon and Washington. The business traces to 1891 and has operated in its current corporate form since 1990 as a subsidiary of Japan’s Taiheiyo Cement Corporation. It runs cement plants, aggregate quarries, ready-mix plants and distribution terminals, and is a repeat recipient of ENERGY STAR plant awards. More than 350 of its Northern California ready-mix drivers, represented by Teamsters Locals 853, 665, 315 and 150, struck 15 plants in August 2026 and ratified a one-year contract on August 21. The company employs more than 500 people across the Western United States.
The operating footprint is wider than the Nevada headquarters suggests. CalPortland describes operations across Alaska, Washington, Oregon, California, Nevada, Arizona and British Columbia, and positions itself as the leading producer of cement, concrete, aggregates, asphalt and construction materials in the Western United States and Canada, with more than 130 years behind it.
The product line is broader than cement and ready-mix. On the cementitious side the company lists Portland Limestone Cement and plastic cement alongside its standard cements and supplementary cementitious materials, describing the SCMs as engineered to exceed industry standards for demanding construction environments. Beyond that sit concrete, aggregates and asphalt, plus construction services and a mobile projects group, the latter being the arm that goes to a job site rather than shipping to it.
Portland Limestone Cement is worth flagging for anyone specifying: it is the lower-clinker product most Western producers have moved to as the default general-use cement, and its appearance at the top of a published cement list rather than in a sustainability appendix says something about where the standard product now sits.
Sustainability is handled as operations rather than reporting. The published programme covers alternative fuels and carbon capture and carbon sink work, which is consistent with the company’s repeated ENERGY STAR plant recognition.
For specifiers and estimators the practical parts of the site are the facility locator, the product data sheets and a concrete calculator, all published rather than gated. On a materials order the binding question is usually distance from the nearest plant, and a locator answers it faster than a phone call.
The company’s stated commitment has not changed since 1891: produce superior materials, execute with integrity, and keep advancing the science behind sustainable construction. The phrase it has trademarked for the output, Quality Unsurpassed, has been attached to its cement-based products for most of that run.
