Description Founded in 1978 as a structural engineering firm in Klamath Falls, OR, ZCS has evolved to become a leading full-service design firm. Working for both private and public sector clients, we offer architecture, structural engineering, and civil engineering from our four locations throughout the state of Oregon. As a collaborative design firm we work collectively across disciplines and office locations efficiently servicing the entire state. From concept through project completion, we will draw upon our diverse experience and background to resolve challenging design and construction issues in a timely and cost-effective manner.