OrientDB

OrientDB is a multi-model database management system that supports graph, document, key-value, and object-oriented models within a single database. According to the vendor, it offers a flexible and scalable solution for managing complex data relationships. OrientDB is suitable for companies of all sizes, including small startups and large enterprises. It is commonly used by IT professionals, developers, data scientists, analysts, software companies, technology firms, as well as the financial services, e-commerce, and retail industries.