* Bohannan Huston - A civil engineering firm located in Albuquerque, NM. Engineers, planners, photogrammetrists, surveyors, software developers.
* BSC Consulting - Provides civil and structural engineering and design, urban planning and development, bridge planning and design, computer visualisation in Australia and Asia.
* Cardinal Engineering Corporation - Civil engineers, architects and surveyors.
* Cascade Science, Inc - A full service northern California civil engineering consulting firm serving municipal, industrial and development clients worldwide.
* C.H. Guernsey and Company - Provides engineering, architectural and consulting services to clients in Oklahoma and around the world.
* Chow Engineering - Provides civil, environmental, mechanical, and structural engineering and construction management services in both the public and private sectors.
* Citibuild mini piling - Citibuild mini piling operates througout the UK providing mini piled foundations and anchoring systems for domestic and commercial applications.
* Civil Dynamics, Inc . - A New Jersey engineering company specializing in dam designs, inspection and removal.