Oracle is a widely known company that develops software for database management systems (DBMS), server management, and others. Recently through acquisitions have expanded to other markets. Many CMMS use Oracle databases as the tool to manage the orders, equipment, and other databases required by the CMMS. For example, SAP R/3 runs using Oracle database products. Oracle acquired JD Edwards, which produces CMMS software applications.
I've used Oracle CMMS in my company for years, and it's quite reliable. They have a vast community and robust support system, which can be very helpful.
Oracle's integration capabilities with other systems are phenomenal. It makes data management across various platforms seamless.