360 Architecture was an American architectural practice acquired by HOK in 2015. The firm provided services for a range of project types including corporate headquarters and commercial office buildings, sports arenas, stadiums and ballparks, municipal facilities, single- and multi-family residential and mixed-use entertainment districts. The firm was headquartered in Kansas City, Missouri, with offices in Columbus Ohio; and San Francisco, California. , the firm had a staff of 200 professionals.