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Oldcastle is the North American arm of CRH plc, a leading global building materials company. Our success has been founded on delivering high performance and growth through our people - our most important asset. Our range of businesses and worldwide locations, along with our growth aspirations, enables us to provide great career opportunities for our people to develop and succeed. With operations in 31 countries, we provide more opportunities to advance your career. Your future with us is an open road that stretches as far your career aspirations. Build an exciting career with us – the possibilities are endless!
Mainspring Energy is a company that develops and manufactures linear generators for local power generation. Their generators are fuel flexible, dispatchable, and can integrate with both renewables and the grid.
Automation Specialist Services is a company that specializes in building custom automation machinery for a variety of industries. They have a team of trusted industry veterans who have been designing and building machines for decades.
Beacon Roofing Supply, Inc. is one of the largest distributors of residential and non-residential roofing and complementary building products in North America. We currently consist of 13 regional companies in 42 states and 6 Canadian Provinces with over 270 locations and more than 3,000 employees. We are known throughout the building supply industry for having quality people, quality service and quality building products. Beacon’s mission is to be the leading North American supplier to commercial and residential roofing and exterior building contractors through a family of long-established regional suppliers and to add value to our contractor customers` businesses, to our employees` careers, to our investors` assets, and to our suppliers` products.