Retiina is an engineering automation company that designs, manufactures, installs, and supports custom equipment for material handling and other demanding applications. Its systems pair machine vision and artificial-intelligence software with electromechanical engineering, including sortation and classification solutions built for specific customer facilities. In 2024, the company was named a USPS Supplier of the Year for its work integrating and installing Matrix Regional Sorters in Atlanta and Chicago, with installation continuing in Indianapolis.
USPS Supplier of the Year
Compliance program
Carter IntralogisticsCarter Intralogistics designs, fabricates, and assembles material-handling automation equipment at two U.S. locations. The company has worked with USPS since its founding more than 40 years ago and also provides systems integration and warehouse automation for businesses across several industries.FREDERICK, MD
Aegis SortationFounded in 2017 by Tony Young, Aegis Sortation is a Louisville-based OEM manufacturer and systems integrator that designs and builds automated material-handling and sortation systems for parcel, distribution, e-commerce, and manufacturing operations. Its U.S.-manufactured innovations include the compact TetraSort platform and Automated Smalls Bagging system, supported by custom engineering, integration, and lifecycle services. More than 20% of its workforce comprises military service members.MASON, OH
SI SystemsSI Systems designs and supplies material-handling and assembly automation equipment, with a history dating to 1958. The Easton, Pennsylvania company specializes in warehouse order-fulfillment automation and in-floor towline conveyance for sequential assembly operations; it also provides engineering design and lifecycle support for automation systems.EASTON, PA
Han-Tek, IncFounded in 1961, Honeoye Falls’ Han-Tek, Inc. designs, builds, installs, and supports engineered material-movement and factory-automation systems. Its in-house team carries projects from facility analysis and controls engineering through fabrication, commissioning, and service, with experience ranging from automated storage to specialized cranes for high-temperature metals work. Han-Tek says it has completed more than 1,500 installations across North America and evaluates technology around each operation rather than being tied to a single platform.HONEOYE FALLS, NY