As a leading mechanical/electrical engineer, a responsive partner, and a trusted consultant, Mueller Associates has supported many design projects in the regional corporate community. Our work includes engineering for new base buildings and renovations, interior fit-outs, administration buildings, data centers, high-tech laboratories, R&D facilities, manufacturing and assembly facilities, and warehouses and other support spaces.


Northrop Grumman

Mueller has engineered more than 950 projects for the defense industry giant

Quinn Evans Headquarters

LEED®-Gold studio space helps foster creativity and collaboration in QE’s Washington, DC office

Mueller Associates Office

Our new office features advanced technology and expansive presentation and training space