Established in 1971, Charles P. Johnson & Associates is a full-service civil engineering firm that provides land planning, engineering and surveying services to the public and private sectors. It is comprised of more than 100 employees, including licensed engineers, registered landscape architects and professional surveyors. The company operates various divisions, such as planning, engineering, surveying and environmental services. Charles P. Johnson & Associates develops geographic information system databases and products for effective management of real property and infrastructures. It handles the design and implementation of database managements systems, including stormwater management and inspections for local counties. The company additionally offers sediment and erosion control, construction plans and specification, site distance analysis and utility relocation services. Headquartered in Silver Spring, Md., Charles P. Johnson & Associates maintains a location in Fairfax, Va.