Pickering, Corts & Summerson, Inc. (PCS) is a full-service, professional civil engineering firm headquartered in Newtown, Buc ... ks County, PA. PCS maintains award-winning practices in civil engineering, land surveying, transportation engineering and planning, and bridge and underwater inspection. PCS is an employee-owned firm with a unique family culture that is carried over to our client relationships. Our value-added approach to business is why our clients have come to rely on PCS to find practical solutions that are environmentally sensitive, cost effective, and sustainable. read more