EXPERIENCE TRUST From expedited mail delivery to our time definite drop ship network, NPL expertly provides companies across the country with postal logistics services that help them remain competitive, increase market share, and boost profits. We passionately pursue growth and partnership with our clients through a culture of exceptional service and a commitment to excellence. A leading transportation and direct mail logistics company, National Parcel Logistics, Inc. (NPL) has been servicing the needs of printers and letter shops throughout the country since 1997. If you ship letters, flats, parcels, bound printed matter or periodicals we have a solution that can work for you.