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Williams Brothers Roofing & Siding Co Inc is a Dayton, OH-based company in the Energy and Utilities sector.
United Drilling specializes in drilling accurately-placed, guaranteed-plumb hydraulic cylinder holes for the elevator industry. Our state of the art equipment and extensive experience allow us to drill through any ground formation, indoors or outdoors
Cust-O-Fab Inc is a Sand Springs, OK-based company in the Energy and Utilities sector.
National Oilwell Varco (NYSE: NOV) is a worldwide leader in the design, manufacture and sale of equipment and components used in oil and gas drilling and production operations, and the provision of oilfield services to the oil and gas industry. Every day, more than 60,000 of the industry`s best minds put more than 150 years of experience to work to help our customers achieve lasting success. Our partnership with our customers has led to the innovation of some of the highest quality products on the market. Through our broad capabilities and vision, NOV`s family of companies is positioned and ready to serve the needs of this challenging, evolving industry. NOV has the technical expertise, advanced equipment and readily available support necessary for our customers` success.
As of 12 September 2013, DNV and GL have merged to form DNV GL. We now form the world’s largest ship and offshore classification society, the leading technical advisor to the global oil and gas industry, and a leading expert for the energy value chain including renewables and energy efficiency. We’ve also taken a position as one of the top three certification bodies in the world.