NPSN is a trusted nationwide directory connecting attorneys, law firms, businesses, and individuals with verified process servers and private investigators. We make hiring reliable professionals easy by offering a top-ranked national directory for service of process and related services such as skip-tracing, record retrieval, e-filing, courier work, and private investigation. Whether you need qualified local experts or want to expand your reach as a process server, NPSN provides the network, tools, and support to help you succeed.