Keystone Engineering and Surveying provides civil engineering and surveying services to private- and public-sector clients throughout Oklahoma. Our expertise includes residential and commercial development, roadway and bridge design, energy and utility engineering, hydrologic design, and road, bridge, pipeline, industrial, and other surveys. From concept to concrete, we deliver expert services and manage projects to run on time and within budget. Keystone is certified as a Woman-Owned Business by Oklahoma Department of Commerce and as a Disadvantaged Business Enterprise by Oklahoma Department of Transportation.