Databases Supporting C# · Database of Databases


	Aerospike NoSQL AI-Assisted	2009	Document / XML, Key-Value, Vector	C#	NoSQL AI-Assisted
	AllegroGraph	2004	Triplestore / RDF	C#
	Apollo xBase	1999	—	C#	xBase
	ArangoDB Multi-Model AI-Assisted	2011	Document / XML, Graph, Key-Value	C#	Multi-Model AI-Assisted
BI	BinaryRage Abandoned	2012	Key-Value	C#	Abandoned
	BTDB OLTP	2010	Key-Value, Object-Oriented	C#	OLTP
	Caché	1997	Array / Matrix	C#
	Cassandra NoSQL AI-Assisted	2008	Key-Value, Column Family / Wide-Column	C#	NoSQL AI-Assisted
	ClickHouse OLAP AI-Assisted	2016	Relational	C#	OLAP AI-Assisted
	Cosmos DB	2015	Key-Value, Graph, Column Family / Wide-Column	C#
	Couchbase NoSQL	2010	Key-Value, Document / XML	C#	NoSQL
	CouchDB NoSQL	2005	Document / XML	C#	NoSQL
	DaggerDB	2014	Relational	C#
	DeveelDB Abandoned OLTP	2009	Relational	C#	Abandoned OLTP
	Drill OLAP AI-Assisted	2012	Column Family / Wide-Column	C#	OLAP AI-Assisted
	EffiProz Abandoned	—	Relational	C#	Abandoned
	EsgynDB Failed Company	2015	Relational	C#	Failed Company
	EventSourcingDB Time-Series Immutable	2022	Document / XML	C#	Time-Series Immutable
	evitaDB AI-Assisted	2020	Document / XML	C#	AI-Assisted
	eXtremeDB Cache Time-Series OLTP Middleware	2001	Key-Value, Entity-Relationship, Relational, Column Family / Wide-Column	C#	Cache Time-Series OLTP Middleware
	FASTER	2018	Key-Value	C#
	FatDB Cache Failed Company NoSQL	2012	Key-Value	C#	Cache Failed Company NoSQL
	FaunaDB Serverless Failed Company	2012	Document / XML, Graph, Key-Value, Relational	C#	Serverless Failed Company
FI	FileDb Abandoned NoSQL	2011	Relational	C#	Abandoned NoSQL
	Garnet Cache AI-Assisted	2021	Key-Value	C#	Cache AI-Assisted
	Geode Cache Forked Code OLTP NoSQL	2015	Key-Value	C#	Cache Forked Code OLTP NoSQL
	GlobalsDB	2011	Array / Matrix	C#
	hss.db	2009	Relational	C#
	iBoxDB Serverless Mobile NoSQL	2014	Document / XML	C#	Serverless Mobile NoSQL
	Ignite	2014	Key-Value	C#
	InfiniDB OLAP Abandoned Failed Company	2000	Relational	C#	OLAP Abandoned Failed Company
	Infinispan Cache	2009	Key-Value	C#	Cache
	Kdb+ Acquired Company	1998	Relational	C#	Acquired Company
	Kinetica OLAP	2009	Relational	C#	OLAP
	LesbianDB Abandoned	2022	Document / XML	C#	Abandoned
	Linter	1990	Relational	C#
	LiteDB AI-Assisted	2014	Document / XML	C#	AI-Assisted
	MarcelloDB Abandoned	2014	Object-Oriented	C#	Abandoned
	MariaDB AI-Assisted	2009	Relational	C#	AI-Assisted
	Matisse OLTP	1986	Document / XML, Object-Oriented	C#	OLTP
	Memgraph AI-Assisted	2016	Graph	C#	AI-Assisted
	Memstate Abandoned	2017	Object-Oriented	C#	Abandoned
	MongoDB NoSQL AI-Assisted	2009	Document / XML	C#	NoSQL AI-Assisted
	NDatabase	—	Object-Oriented	C#
	NexusDB OLTP	2003	Relational	C#	OLTP
	Ninja Database	—	Object-Oriented, Relational	C#
	NornicDB Nearest Neighbor AI-Assisted	2025	Graph	C#	Nearest Neighbor AI-Assisted
	NosDB Abandoned	2013	Document / XML	C#	Abandoned
	Objectivity/DB	1990	Object-Oriented	C#
	OceanBase	2010	Relational	C#
	ODABA	1994	Object-Oriented	C#
	Oracle Multi-Model	1977	Document / XML, Graph, Key-Value, Relational, Triplestore / RDF	C#	Multi-Model
	OrientDB Multi-Model Acquired Company NoSQL	2010	Document / XML, Graph, Key-Value, Object-Oriented	C#	Multi-Model Acquired Company NoSQL
	Perst Acquired Company	2003	Object-Oriented	C#	Acquired Company
	PinusDB Abandoned	2019	Relational	C#	Abandoned
	RaimaDB Time-Series	1984	Network, Relational	C#	Time-Series
	RaptorDB Abandoned	2012	Document / XML	C#	Abandoned
	Realm Acquired Company Abandoned Mobile	2011	Object-Oriented	C#	Acquired Company Abandoned Mobile
	RedisGraph Abandoned	2018	Graph	C#	Abandoned
RE	Relatude.DB	2025	Graph, Object-Oriented	C#
	RethinkDB Failed Company NoSQL	2009	Document / XML	C#	Failed Company NoSQL
	SapphireDb Abandoned	2018	Object-Oriented	C#	Abandoned
	Scylla NoSQL AI-Assisted	2014	Key-Value, Column Family / Wide-Column	C#	NoSQL AI-Assisted
	SequoiaDB	2011	Document / XML	C#
	Solr Search Engine NoSQL AI-Assisted	2004	Document / XML	C#	Search Engine NoSQL AI-Assisted
	Sparksee	2006	Graph, Object-Oriented	C#
	Splunk Acquired Company Search Engine	2002	Key-Value	C#	Acquired Company Search Engine
	Sqrrl Acquired Company NoSQL	2012	Graph, Key-Value	C#	Acquired Company NoSQL
	SSDB Abandoned	2013	Key-Value	C#	Abandoned
	StereoDB Abandoned OLTP	2023	Relational	C#	Abandoned OLTP
	SWC-DB Abandoned	2019	Column Family / Wide-Column, Key-Value	C#	Abandoned
	TDengine Time-Series AI-Assisted	2017	Relational	C#	Time-Series AI-Assisted
	TileDB NoSQL	2014	Array / Matrix	C#	NoSQL
	Vector OLAP Acquired Company	2009	Relational	C#	OLAP Acquired Company
	VelocityDB Abandoned	2011	Object-Oriented	C#	Abandoned
	Xapian Search Engine	2001	Document / XML	C#	Search Engine
	YugabyteDB Forked Code OLTP AI-Assisted	2016	Key-Value, Relational	C#	Forked Code OLTP AI-Assisted