This is a Request for Information (RFI) to identify potential non-commercial sources for developing a second repair source for the ESU, with a focus on small businesses. The work involves manufacturing and repair, requiring the contractor to furnish all components, equipment, and services at their own or a subcontractor's facility. The government notes that the original manufacturer, Abaco Inc., is currently the only known source with the necessary technical data and capabilities. Interested sources must have facilities and personnel cleared to handle information up to the Secret level. The NAICS code is 334511 with a 1250-employee size standard.