* Driesenga and Associates, Inc . - Engineering consulting firm specializing in civil, geotechnical and environmental engineering, land surveying, and construction materials testing.
* Earth Moving Specialists - Providing heavy equipment earth moving, laser leveling, laser grading, sub division prep, site prep, trucking, road building and chip sealing. Serving the state of Arizona.
* Edward J. Frattaroli, Inc . - A professional service firm of engineers, planners, and surveyors based in Stamford, CT.
* Efird Corrosion International, Inc - Corrosion engineering and testing company providing research, education, training, failure analysis, and expert witness services.
* Emanuel E. Necula, Consulting Engineers, P.C . - The Firm provides professional engineering services, including: Civil engineering, planning and design for site, coastal, maritime and land improvements,harbors, docks and marinas, parking facilities, utility structures, pile work, soil stabilization, drainage and river maintenance projects.
* The Engineering Business, Ltd . - Off-shore engineering, design, and project management including seabed geotechnical engineering and subsea telecoms.
* Entreprises et Projets - International project management firm providing full range of construction services: construction and project management services, site management and works supervision - safety and health management - bidding - owner representation and project consulting.
* Exponent, Inc. - Consulting services for structural, earthquake, architectural, and geotechnical engineering, construction and building technology, geology, hydrology, and ground water.
* Frederick, Seibert and Associates - Provides civil engineering, surveying, landscape architecture, and land planning services .
