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RETTEW, ranked by Engineering News-Record magazine as one of the top design firms in the U.S., provides a wide range of environmental, engineering, surveying, planning, and related consulting services. Since 1969, RETTEW has grown from a single, four-person firm to more than 350 dedicated professionals, including engineers, planners, surveyors, landscape architects, and environmental scientists who collaborate to provide integrated answers to the challenges our clients face. We control costs and accelerate schedules by offering complete in-house solutions to your projects. Featuring multiple service families, which comprise more than 100 different services, RETTEW efficiently manages projects with those key results in mind.
Ability Engineering Technology, Inc., AET, is a multi-disciplined engineering, design and manufacturing company located south of Chicago.
Yearout Energy, now an Energy Systems Group (ESG) company, remains committed to delivering practical, custom energy solutions that enhance operational efficiency, reduce carbon footprints, and improve infrastructure resiliency. As part of Energy Systems Group, we specialize in energy performance contracting, design-build construction, and utility management serving the public and private sectors nationwide. Our clients include colleges and universities, K-12 education, healthcare, local and state government, commercial organizations, and hospitality. We continue to forge strong partnerships, offering unmatched expertise, hands-on service, and ongoing support to create meaningful, lasting outcomes for the built environment.
Mid South Roof Systems is a commercial roofing contractor that specializes in large scale flat roofing solutions for commercial applications such as big box retail, distribution centers, and manufacturing facilities nationwide.
SOCOTEC USA is a prominent testing, inspection, certification, and consulting firm that supports clients throughout the project lifecycle. As part of the SOCOTEC Group, a leader in the TIC industry, SOCOTEC USA operates with a strong national presence and offers expertise across various sectors. The company employs over 650 professionals across more than 25 offices in the United States, providing tailored solutions to meet the unique needs of each location and industry. The services offered by SOCOTEC USA include specialized consulting and inspection for building envelopes, energy efficiency solutions, compliance advice for building codes, and project advisory services. They also provide life safety consulting, dispute resolution, financial analysis, and comprehensive testing and inspection services. SOCOTEC USA has been involved in several high-profile projects, such as One World Trade Center and Miami-Dade International Airport, showcasing its capability in managing complex infrastructure and construction challenges. The company is recognized for its positive work environment, having achieved the Great Place to Work certification.