Portland Center Stage at The Armory | 2,652 followers on LinkedIn. Portland Center Stage is the largest theater company in Portland, Oregon, and our mission is to create transcendent theatrical experiences and community programs that break down the barriers separating people. Established in 1988 as a branch of the Oregon Shakespeare Festival, the company became independent in 1994. PCS’s home is at The Armory, a historic building originally constructed in 1891.