Open Door Technology Inc.

Open Door Technology, doing business as RUX, is a specialist provider of equipment rental, asset management, and business application software built on Microsoft Dynamics 365 Business Central. Founded in 1992, RUX focuses on single-platform ERP solutions and industry-specific apps that deliver end-to-end visibility from quote-to-cash, inventory and asset tracking, and field operations. The company serves equipment-intensive sectors including construction, manufacturing, energy and environmental services, facility and field services, and medical equipment providers. As a Microsoft Solutions Partner in Business Applications, RUX emphasizes secure, scalable implementations that stay current with Microsoft’s continuous innovation. Their offerings combine Business Central core ERP capabilities with tailored modules for rentals, maintenance, and financial operations, backed by services such as system integration, data migration, custom development, analytics, training and ongoing support. RUX positions itself as an industry-focused partner that applies decades of domain experience to accelerate go-live, drive operational visibility, and embed best-practice processes for complex equipment and service businesses.