Category
page 1Object-oriented database management systems
IBM AIX
Unix operating system from IBM
object database management system
database management system

Zope Object Database
Python object database management system
db4o
db4o (database for objects) was an embeddable open-source object database for Java and .NET developers. It was developed, commercially licensed and supported by Actian. In October 2014, Actian declined to continue to actively pursue and promote the commercial db4o product offering for new customers.
InterSystems Caché
commercial operational database management system from InterSystems
Gemstone
GemStone/S is computer software, an application framework that was first available for the programming language Smalltalk as an object database. It is proprietary commercial software.
InterSystems
InterSystems Corporation is a privately held vendor of software systems and technology for high-performance database management, rapid application developmentintegration, and healthcare information systems. The vendor's products include InterSystems IRIS Data Platform, Caché Database Management System (now largely superseded by IRIS), the InterSystems Ensemble integration platform (more recently marketed as HealthShare Health Connect), the HealthShare healthcare informatics platform and TrakCare healthcare information system, which is sold outside the United States.