Keystone Retaining Wall Systems, Inc., part of THE QUIKRETE Cos. LLC, is a company headquartered in the United States that manufactures concrete retaining wall systems.\nThe company says this about itself: The first segmental retaining wall company in the United States, Keystone Retaining Wall Systems® provides the preferred product solutions for the residential, commercial, institutional, retail and government markets. Keystone Retaining Wall Systems develops, markets and licenses concrete hardscape products to manufacturers across the globe. Keystone is a division of The QUIKRETE® Companies, which manufactures and distributes products from more than 200 facilities in the U.S., Canada, Puerto Rico and South America. Keystone Retaining Wall Systems is committed to helping engineers, architects, specifiers, contractors and homeowners bring projects to life.

Tensar International Corp. manufactures and supplies retaining walls, ground stabilization, and soil reinforcement solutions. Its products include Sierra slope retention system, Tensar temporary retaining wall system, Dimension and Prism foundation improvement system, ADD3 capacity improvement systems, Tensar georids, mining system, and Spectra rail railway improvement system. The company was founded in 1988 and is headquartered in Alpharetta, GA.

Watershed Solar Development LLC is a private company headquartered in Alpharetta, GA. The firm provides renewable energy solutions. Mike Ayers is currently the CEO of the company.\nThe company says this about itself: Watershed Solar is a renewable energy company offering PowerCap? patented solar technology that provides innovative landfill, brownfield and rooftop solar energy solutions integrated with ClosureTurf?, a patented engineered geosynthetic turf closure system owned by Watershed Geosynthetics. The company is headquartered in Alpharetta, Georgia.

Wenzhou Jigao Testing Instrument Co., Ltd., established on 2010-01-06, Business scope includes research and development,manufacture,Sales,repair,Install:Experimental testing equipment,automation equipment,Electrical equipment,Optical instruments and equipment,Textile special equipment(All the above items are not prohibited by national laws and regulations,limit,disuse,Projects that seriously pollute the environment and other projects requiring special approval);software development,Sales;Information system integration service;Data Processing and Storage Services;Technical service for instruments and equipment,technical consulting;Experimental Instrument Consumables(Free of Hazardous Chemicals)promotion of;Import and export,Technology Import and Export.

Board of Regents of The University of Oklahoma is a private company headquartered in Norman, OK, with domestic subsidiaries, specializing in radio broadcasting stations.

Officine Maccaferri SpA engages in the provision of engineered solutions to the construction, geotechnical, and mining industries. It specializes in gabion retaining structures, and also offers other engineered solutions including reinforced soil structures, coastal protection, soil stabilization, landfills, natural hazard mitigation, and river control works. The company was founded by Raffaele Maccaferri on May 3, 1879 and is headquartered in Zola Pedrosa, Italy.

CCCC Tianjin Harbor Engineering Research Institute Co., Ltd., established on 2002-01-21, Business scope includes foundation engineering construction,Experimental Study;Offshore engineering hydraulic model(physical model and digital model)Experimental Study;Experimental Research on Construction Technology and Equipment and Instruments of Port Engineering;electronic automation,Development and research of basic engineering construction technology and technical development of the above projects,Technical service and technical consultation;Engineering Investigation;hydraulic structures,building materials,Technology Development and Research of Steel Structure Anticorrosion;port engineering,Industrial Civil Engineering,Water conservancy project,Traffic Engineering Inspection and Evaluation;Equipment,Instrument sales;Steel structure anti-corrosion engineering construction;Technical development of geotechnical engineering monitoring instruments and automatic monitoring systems.(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments)

Tianjin Harbor Engineering Quality Inspection Center Co., Ltd., established on 2006-11-03, Business scope includes port engineering quality supervision and testing;building materials,building structure,Pile foundation and pile body,Foundation engineering quality,structure,Mechanical testing and testing;Mapping service.(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments)

Sicornete-Fios e Redes Lda., part of Sicor Sociedade Industrial de Cordoaria SA, is a Portuguese company located in S��o Pedro do Sul that wholesales baler twine.

Shanxi Jiaoke Highway Survey and Design Institute Co., Ltd., established on 1998-08-14, The business scope includes various roads in the transportation and highway industry,the bridge,Investigation of tunnel and ancillary works,design;construction project:Comprehensive survey of various construction projects;road industry,Municipal industry,Construction Industry Design and Engineering Consulting.Consultation on large-scale bridge construction supervision on high-grade highways;the highway,the bridge,Technology Development and Technology Promotion of Tunnel;Government Procurement Agent;Bidding agency:Engineering construction and equipment,Bidding agency for material procurement.(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments)

CCCC First Harbor Engineering Co., Ltd. engages in the business of port construction services. The firm covers marine works for ports, shipyards and navigational structures, construction of roads, bridges, airports and light railways, railways and subways, installation of large-size complete equipment and plants, construction of industrial and civil buildings and other medium and large size construction projects. The company was founded on November 12, 1945 and is headquartered in Tianjin, China.

Tencate Geosynthetics France combines textile technology with chemical process technology for development and production of functional materials, modules and systems. The company is headquartered in Nijverdal, Italy.

AMCOL International engages in the development and application of minerals, technology products, and services to various industrial and consumer markets. The company’s performance materials segment mines, processes, and distributes bentonite and bentonite-related products, chromite, and leonardite for use in various markets, including metal casting, pet care, laundry care, and drilling industries. This segment offers blended mineral binders and organic additives. The company provides performance materials for metalcasting, household and personal care, specialty materials, and basic minerals. They also provide construction technologies such as lining, remediation, building materials, and drilling products. The Energy Services segment of the firm is creating new ways to improve cost-efficient energy production that offers a wide range of technologies, products, and services for all phases of oil and gas production throughout the world. The transportation segment is a strategic resource in supporting customers with domestic rail, trucking, and ocean transportation services around the world. AMCOL International is a U.S.-based company that was founded in 1927.

Huesker Synthetic GmbH engages in the development and manufacture of textiles for technical applications. Its products are used in earthworks and foundations, roads and pavements, environmental and hydraulic engineering, mining, as well as agriculture. The company was founded in 1973 and is headquartered in Gescher, Germany.

Tricon Precast Ltd. provides walling and bridge systems. It offers precast concrete solutions such as precast bridge systems, precast wall systems, precast products, and engineering services. The company was founded in 1987 and is headquartered in Houston, TX.

Kinectrics, Inc. provides power generation and other related engineering services. It offers arc hazard and asset management services for transmission and distribution, cable testing, and contaminated assessment of power transformers. The company was founded in 1912 and is headquartered in Toronto, Canada.

AFITEX SAS manufactures and markets synthetic materials for the construction industry. It offers solutions to drainage, earth retaining, and lining systems. The firm also transforms basic textiles into geo-composite products. Its products include protecterre, coverdrain, and alveoter. The company was founded by Yves Durkheim in 1992 and is headquartered in Champhol, France.

CCCC Fourth Aviation Engineering Research Institute Co., Ltd., established on 1988-07-04, Business scope includes engineering and technology research and experimental development;Natural science research and experimental development;Building Material Inspection Services;Public facility safety monitoring service;Basic geological survey;Geological Exploration Technical Services;Engineering Technology Consulting Services;Engineering survey and design;engineering drilling;Building Material Design,consultation service;New material technology promotion service;Commodity retail trade(Except for licensed and approved products);Commodity wholesale trade(Except for licensed and approved products);Environmental protection technology promotion service;Energy-saving technology promotion service;construction work,Civil Engineering Technical Services;Manufacturing of electronic measuring instruments;Municipal public works construction;Water conservancy and inland port engineering construction;Port and shipping facilities engineering construction;Landscape and green space facilities engineering construction;Foreign contracted engineering business;Ocean Engineering Construction;Professional contracting of foundation and foundation engineering;Anti-corrosion professional construction of hydraulic metal structure;Special professional engineering professional contracting;Construction of engineering environmental protection facilities;Earthworks Services;Engineering drainage construction services;Construction labor subcontracting;Foundation Pit Support Services;building structure reinforcement;Building structure waterproofing;software development;Geological disaster management service;railway,the way,Tunnel and Bridge Engineering Construction;Engineering Project Management Services;Engineering general contracting service;General contracting of engineering construction;road maintenance;housing construction;Manufacturing of lightweight building materials;building materials,Decoration materials wholesale;production mortar;Manufacture of waterproof building materials;paint manufacturing(Monitor Chemicals,Excluding hazardous chemicals);paint wholesale;Additive Manufacturing for Concrete;adhesive manufacturing(Monitor Chemicals,Excluding hazardous chemicals);Wholesale of chemical products(Excluding hazardous chemicals);