NPI is a minority-owned business in the Dallas/Fort Worth area designing leading-edge letter and parcel sorters for over 40 y ... ears, with machines installed worldwide. We set the standard for affordable, high quality, low maintenance machines. Our team of experts work together to design, build, and service automated letter and parcel sorters, while offering the most compact designs in the industry. Our exclusive patented technology is configurable into a modular design allowing you to save on labor, floor space, and cost. Our sorters are equipped with the most advanced, user-friendly software to help streamline automation. We improve automation through continuous innovation and current market analysis. read more