Alliance Engineers

ConstructionVirginia, United States51-200 Employees

Alliance Engineers, based in Reston, Virginia, provides structural design and integrated mechanical, electrical, plumbing, and fire protection engineering for a wide range of building projects. Founded in 1995 as Alliance Structural Engineers, Inc., the firm has completed work across diverse sizes and materials, including wood frame, structural steel, cast-in-place concrete, masonry, and combinations of these. To broaden its capabilities, the company established Alliance MEP Engineers in the early 2010s to bring MEP design into a single practice.

Leadership has expanded with seasoned professionals such as Keith Leadbetter, who joined as Principal of MEP Operations in 2012. Headquartered in Reston with a satellite office in Gaithersburg, the firm is registered with NCEES and licensed in 15 states and the District of Columbia, reflecting its geographic reach and credentials. Its client base includes architects, developers, and general contractors seeking coordinated design for new construction, renovations, tenant improvements, and data centers, along with energy-related services like audits, energy modeling, commissioning, and peer review.

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