in Ellicott City, Maryland

Pennoni is an ENR Top 500 consulting engineering firm. Since our founding more than five decades ago, our clients trust Pennoni’s commitment to elevating the impact of projects on our communities…

ETC provides structural, architectural and mechanical engineering services in the Baltimore-DC area. Specializing in restoration of existing structures.

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Timmons Group is a multi-disciplined engineering and technology firm recognized for nearly twenty years as one of Engineering News Record’s Top 500 Design Firms in the country.

Versar environmental management and construction project management services provide exceptional value. Our active process management, efficient communication, and advanced quality control method…

Successfully Servicing public and private sector clients with our Civil Engineering and Surveying Expertise