Donald E. Stone

The Dewberry Cos., Inc. provides architecture, engineering, and management and consulting services. Its services include architecture, asset management, building structures, transportation, emergency management, geospatial, interior design, resilience, and security technology. The company was founded by Sidney O. Dewberry in 1956 and is headquartered in Fairfax, VA.

Dewberry Consultants LLC offers architectural, engineering and consulting services. It serves government agencies, the military, corporations, industries, or educational institutions. The firm provides program development, interior design, cost estimating, scheduling, contract documentation and construction administration. The company was founded by Sidney O. Dewberry in 1956 and is headquartered in Fairfax, VA.

Bowyer-Singleton & Associates, Inc. provides professional planning, engineering, environmental, surveying and mapping services. The firm provides services to land developers, transportation agencies, governmental agencies, engineering firms, builders and property owners throughout the State of Florida. The company was founded in 1972 and is headquartered in Orlando, Fl.

O'Brien & Gere Inc. of North America provides construction, operations and project management services. The company is headquartered in Syracuse, NY.

Dewberry & Davis, Inc. provides architectural, engineering and consulting services. The firm's services include planning, engineering, architecture, program management, consulting, surveying, and mapping. The company was founded in 1956 and is headquartered in Fairfax, VA.

O'Brien & Gere Ltd. engages in the provision of engineering and environmental solutions. It offers manufacturing, energy, environment, and water solutions. The company was founded by William S. Gere, Earl F. O'Brien and Glenn D. Holmes in 1945 and is headquartered in Syracuse, NY.