DOC Development, Inc. (DDI) is a national infrastructure services firm specializing in vertical transportation and accessibility solutions. Since 2001, we have supported healthcare systems, federal agencies, and commercial clients with elevator installation, modernization, and maintenance, along with stairlifts, ramps, and patient lift systems. Operating in 36 states, we deliver reliable, safety-focused execution in mission-critical environments. DDI is SBA 8(a) certified, ISO 9001:2015 compliant, and supports VA programs nationwide. We combine government-grade standards with responsive, hands-on service to meet complex project demands.
