ADEx is an online legal document due-diligence platform that uses MongoDB as its database management system, leveraging its flexibility and scalability to handle large volumes of data. The company's tech stack includes Java-based Play and Spring frameworks for the back-end, Angular for the front end, Electron for the desktop app, Python Flask applications for predictions, and TensorFlow and Keras for deep learning models. ADEx has partnered with large companies such as Salesforce, Box, and Colliers International, hosting over 7 million contracts and storing their data in MongoDB. The company's CTO, Apoorv Khandelwal, credits MongoDB's flexibility and community support for its adoption, and praises the platform's ease of use, auto-scaling, and automated backups, which have simplified database management and scaling.