A full service Civil Engineering, Planning, and Surveying firm with qualified professionals to meet all of your needs. CLSI has a diverse staff of qualified professionals experienced in providing a wide variety of planning, engineering, surveying and environmental consulting services. This allows us to serve the needs of various private and public sector clients in Maryland and Pennsylvania. Our staff includes professional licensed Engineers and Surveyors and with intimate knowledge of their project assignments, from concept through to completion. The staff maintains a vested interest in successfully completing projects and communicating with our clients throughout the life of the project, saving our clients time and money. Located in Central Maryland, CLSI has easy access to all regional project sites as well as to State agencies. We have the staff and technical capability to consistently handle your projects with state-of-the-art technology and innovative approaches that are on the leading edge of the engineering and surveying profession.