Pierce County Security, Inc. (PCS), also doing business as Pacific Coast Security, is a large company that still maintains a ... small company’s commitment to customer service. PCS has been in business since 1927 providing security services to Western Washington. On-Site Security Officers, Mobile Patrols, Specialized Services, Alarm Response, and Training are just a few of our services. As you use the links above you can fully examine PCS’s services, history, philosophy, and other subjects related to security. PCS can be part of your Security Solution. read more