Advanced Drainage Systems (ADS) is focused on drainage products and services that deliver solutions for the most persistent and challenging water management problems. From safely pre-treating and managing stormwater runoff, to helping developers and property owners harvest rainwater, we fo...

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DAL-TECH Engineering, Inc., a Texas corporation, was founded in 1990 by Ms. Sedi Toumani, PE, and has been a full-service civil engineering and land surveying firm from its inception. Ms. Toumani has guided DALTECH through the years with unwavering principles and demands each member of our ...

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Terracon is a 100 percent employee-owned consulting engineering firm providing quality services to clients. Since 1965, Terracon has evolved into a successful multi-discipline firm specializing in environmental, facilities, geotechnical, and materials services. Over our history, Terracon h...

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Halff Associates is a unique regional consulting firm that has provided full-service engineering, architecture, and related services for decades. We are committed to continually investing in our employees, fostering a culture of collaboration, and delivering unwaveringly high-quality result...

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With engineering services dating back to 1919, Garver has nearly a century of service in providing clients with consulting expertise. Garver has 22 offices in nine states, and our headquarters are based in North Little Rock, Arkansas. We provide services for transportation, aviation, water,...

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Hayden Consultants is a Dallas-based engineering partner serving public agencies and private industry, specializing in civil and transportation engineering design services for projects in North Texas, statewide and in the surrounding states. Founded in 2000, Hayden Consultants has earned a...

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Alliance Geotechnical Group, Inc. (AGG) was established in 1999 "To add value to our Clients' Projects by providing Engineering Solutions in the areas in which we excel and develop relationships which encourage Clients to view AGG as their consultant of choice."Alliance Geotechnical Grou...

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AECOM is a global network of experts working with clients, communities and colleagues to develop and implement innovative solutions to the world’s most complex challenges. Delivering clean water and energy. Building iconic skyscrapers. Planning new cities. Restoring damaged environments...

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As your full-service professional geotechnical, environmental consulting and testing firm, we’re there for you during all stages of the project—from planning, to design and construction, to ongoing management and operations. Our mix of services provides the science you need for you...

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Henley-Johnston & Associates, Inc., a privately owned Texas Corporation, was established to provide consulting geotechnical engineering and geosciences services from Dallas, Texas, over 60 years ago and is a leader and innovator in this highly specialized field of civil engineering and geo...

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