CalPortland Company is a major diversified building materials and construction solutions provider to the Western United States and Canada. Since 1891, we have reliably provided quality innovative and efficient solutions to your greatest construction challenges with our expertise in cement production and distribution, ready mixed concrete, construction aggregates, asphalt, construction services and other building materials. Our products provide solutions everywhere; in buildings for shelter; roads and bridges that transport and link us; systems that provide electricity, water, gas and waste treatment; and other necessary infrastructure like hospitals, schools, railways and airports. We are creating solid foundations through the use of sustainable materials and renewable technologies.

Sonag Company is a general contracting and construction enterprise that offers a variety of services including masonry, carpentry, and demolition. The firm works on private and public sector projects that range from civil, commercial, and health care structures to industrial and residential projects. The minority-owned company operates from offices in Madison, Milwaukee, and Tomah, Wisconsin and in Mascoutah, Illinois. President and CEO Brian Ganos owns the firm.

Ducon Technologies provides custom equipment for refineries, mining and incineration operations, cement works, power boiler operations, and paper mills, among others, to help control atmospheric pollutants, and to monitor emissions, thereby helping its customers with their compliance to EPA and local environmental regulations. The company's equipment offerings include activated carbon absorbers, electrostatic precipitators, flue gas desulphurization equipment, gas absorption towers, incineration systems, and particulate scrubbers. Ducon Technologies claims to serve all FORTUNE 500 companies.

McDermott International, Inc., through its subsidiaries, operates as an engineering and construction company worldwide. It operates in three segments: Offshore Oil and Gas Construction, Government Operations, and Power Generation Systems. The Offshore Oil and Gas Construction segment engages in the front-end design and detailed engineering, fabrication, and installation of offshore drilling and production facilities; and installation of marine pipelines and subsea production systems. It also provides project management and procurement services. In addition, this segment operates a fleet of marine vessels used in offshore construction and various fabrication facilities. The Government Operations segment manufactures and supplies critical nuclear components, fuels, and assemblies for government and commercial uses, as well as provides various services, including uranium processing, environmental site restoration services, and management and operating services for various U.S. Government-owned facilities primarily within the nuclear weapons complex of the U.S. Department of Energy. It also supplies research reactor fuel elements for colleges, universities, and national laboratories; offers uranium-based products used for medical isotopes; and converts or downblends high-enriched uranium into low-enriched fuel for use in commercial reactors to generate electricity, as well as provides heavy fabrications for industrial use, including components for defense applications. The Power Generation Systems segment supplies fossil-fired boilers, commercial nuclear steam generators and components, environmental equipment and components, and related services. It designs, engineers, manufactures, constructs and services utility and industrial power generation systems, including boilers used to generate steam in electric power plants, pulp and paper making, chemical and process applications, and other industrial uses. The company was founded in 1923 and is based in Houston, Texas.

Starfire Lumber produces planed and rough Douglas fir lumber products from its western Oregon cutting mill. The company operates sales networks in the Pacific Rim, Europe, the Middle East, Africa, and Australia. Starfire Lumber, formerly an old cedar mill, was incorporated in 1983 by Francis Engle, the company's former chairman. The Engle family continues to control the company.

Smith-Midland Corporation and its subsidiaries develop, manufacture, license, sell, and install precast concrete products for the general contractors in the construction, farming, and utilities industries, as well as federal, state, and local transportation authorities in the Mid-Atlantic, northeastern, and Midwestern regions of the United States. Its products include Easi-Set Slenderwall lightweight construction panels, which are prefabricated lightweight exterior cladding systems used for constructing the exterior walls of buildings; Easi-Set Sierra Wall that provides sound and sight barrier used around residential, industrial, and commercial properties and alongside highways; and Easi-Set J-J Hooks Highway Safety Barrier, a safety barrier for use on roadways to separate lanes of traffic. Smith-Midland Corporationalso offers Easi-Span expandable precast building; Easi-Set Precast building, a transportable, prefabricated, single-story, and concrete building for use in housing communication operations, traffic control systems, mechanical and electrical stations, inventory or supply storage, and restroom facilities or kiosks; and Easi-Set Utility Vault used for house equipment, such as cable, telephone or traffic signal equipment, and for underground storage. In addition, Smith-Midland Corporation provides Softsound soundwall panels, which are used to absorb highway noise; Beach Prisms, a shoreline erosion control product; and H2Out, a secondary drainage and street level leak detection product for panelized exterior cladding. Further, licenses its proprietary products to precast concrete manufacturers in the United States, Canada, Belgium, New Zealand, Australia, Mexico, Spain, and Chile. Smith-Midland Corporation was formerly known as Smith Cattleguard Company and changed its name to Smith-Midland Corporation in 1985. Smith-Midland Corporation was founded in 1960 and is based in Midland, Virginia.

Skanska UK, the British subsidiary of Sweden-based global contractor Skanska AB, provides a wide range of engineering and construction services. The group specializes in private finance initiative (PFI) projects, and offers services in the building, civil engineering, mechanical and electrical, engineering design, and residential sectors. Skanska UK also offers specialty contracting services such as telecom network installations, piling and foundation work, and steel decking. The division has participated in such notable United Kingdom projects as the Channel Tunnel Rail Link, the remodeling of the Ministry of Defence headquarters in London, and new facilities for the Scottish Prison Service.

Polkinghorn Group Architects provides architectural services for commercial, educational, and institutional projects. In addition to its work on high schools, colleges, churches, and libraries, Polkinghorn has a particular focus on health care facility design. The firm has worked on more than 350 projects mainly in Texas and Louisiana totaling nearly $1 billion. Completed projects include Austin Community College, Texas Orthopedics Surgery Center, Sunset Canyon Veterinary Clinic, and Holy Spirit Episcopal Church. Polkinghorn Group Architects was established in 1972.

Martinez + Cutri Corporation Architects, the firm specializes in designing environments. Besides educational facilities, its portfolio includes convention centers, mixed-use urban centers, luxury hotels, waterfront resorts, high-rise and multi-family residential developments, and industrial projects. Founded in 1980 by Joseph Martinez and Anthony Cutri, the firm offers architectural services, such as site analysis and selection, site planning and design development, cost estimation, interior design, community planning, and urban and regional design. Since its inception, Martinez + Cutri has designed more than 200 projects.

American Infrastructure provides balance and structure. Through subsidiaries Allan A. Myers and American Infrastructure-Virginia, the firm provides heavy civil construction services for projects in the Mid-Atlantic. It builds and reconstructs highways, water treatment plants, medical facilities, and shopping centers, and offers site development for homebuilders. Its Independence Construction Materials (ICM) subsidiary supplies aggregates, asphalt, and ready-mixed concrete to its construction companies. The family-run business was established in 1939 as Allan A. Myers and Son, a local hauling company in the suburbs of Philadelphia.

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