EwingCole

Alexander Ewing started the practice in Philadelphia in 1961 with 30 people and brought in Stanley Cole in 1964. EwingCole is now an integrated architecture, engineering, interior design and planning firm working from six offices: Philadelphia, Pittsburgh, New York, Irvine, Raleigh and Charlotte. Its practice groups cover healthcare, higher education, science and technology, sports, entertainment, government, corporate and cultural work. The firm designed Citizens Bank Park, the Phillies’ ballpark that opened in South Philadelphia in 2004, and is the architect on the New York Giants’ training facility expansion announced in July 2026. Headquarters sit in the old Federal Reserve Bank Building on North 6th Street. Staff numbers in the low hundreds.

Ten addresses appear on EwingCole’s contact page: Philadelphia and Wayne in Pennsylvania, Baltimore, Atlanta, Charlotte and Raleigh, Fort Worth, Irvine and San Diego, and New York. The headcount listed there is more than 470 professionals. Jason Fierko is president and works from the Philadelphia office at 100 North 6th Street. Jared J. Loos, PE, AIA, chairman of the board and treasurer, is based in Wayne. David Gaudreau is managing principal in Baltimore and Mary Frazier holds the same title in New York, where the practice operates as WJL Architecture & Engineering D.P.C. doing business as EwingCole, at 330 Seventh Avenue. Regional directors cover Atlanta, Fort Worth and the two California offices.

Construction management sits in a separate company. ECBuild was formed in 2019 when its founding members joined with EwingCole, and it was set up around life sciences, education and healthcare clients. Its scope covers preconstruction estimating and scoping, procurement, construction-phase monitoring, construction management and project management, delivered through CM at Risk, lump sum, design-build and integrated project delivery. Aitor Sanchez-Prado, PE, is senior vice president; Loos also appears on the ECBuild team page.

Beyond the four core disciplines, EwingCole keeps several specialist groups in house: lighting design, process engineering, design research, sustainability and a digital media group. Practice areas listed on the site are civic, cultural, education, health and wellness, science and technology, and sports and entertainment. Recent published insights indicate where the technical attention is going: mass timber in biopharma facilities, responsible material selection, workplace design, and the interpretive work behind a project telling the story of Duluth’s Ojibwa people. The firm describes its process as integrated rather than sequential, with planners, architects, interior designers and engineers contributing in parallel instead of coordinating across separate offices.