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Databases Classified as Commercial

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	4D	1984	Relational	Commercial
	Access Acquired Company	1992	Relational	Commercial	Acquired Company
	ActorDB Abandoned Project	2014	Relational	Commercial	Abandoned Project
	Adabas	1971	Network	Commercial
	Adaptive Server Enterprise Acquired Company	1987	Relational	Commercial	Acquired Company
	Advantage Database Server xBase Acquired Company	1993	Relational	Commercial	xBase Acquired Company
	Aerospike NoSQL AI-Assisted	2009	Document / XML, Key/Value, Vector	Commercial	NoSQL AI-Assisted
	AGEDB Middleware AI-Assisted	2019	Graph	Commercial	Middleware AI-Assisted
	AgensGraph Forked Code Multi-Model Acquired Company	2013	Document / XML, Graph, Key/Value, Relational	Commercial	Forked Code Multi-Model Acquired Company
	Aito	2017	—	Commercial
	Akiban Acquired Company Abandoned Project	2009	—	Commercial	Acquired Company Abandoned Project
AL	AlchemyDB Acquired Company Abandoned Project	2010	Relational	Commercial	Acquired Company Abandoned Project
	Algebraix	2009	—	Commercial
AL	Allbase/SQL	—	—	Commercial
	AllegroGraph	2004	Triplestore / RDF	Commercial
	AlloyDB OLAP Forked Code OLTP	2022	Relational	Commercial	OLAP Forked Code OLTP
	Altibase OLTP	1999	Relational	Commercial	OLTP
	Altinity Forked Code AI-Assisted Hosting Service	2017	—	Commercial	Forked Code AI-Assisted Hosting Service
	Amisa Server Failed Company	2014	Document / XML	Commercial	Failed Company
	AncelusDB	1983	Entity-Relationship	Commercial
	AnnDB Nearest Neighbor Search	2020	Vector	Commercial	Nearest Neighbor Search
	AntDB Forked Code	—	Relational	Commercial	Forked Code
	Antfly	2026	—	Commercial
	AnzoGraph	2007	Graph	Commercial
	Apollo xBase	1999	—	Commercial	xBase
AP	Apollo	2014	Document / XML	Commercial
	Approach Acquired Company Abandoned Project	1991	Relational	Commercial	Acquired Company Abandoned Project
	ArangoDB Multi-Model AI-Assisted	2011	Document / XML, Graph, Key/Value	Commercial	Multi-Model AI-Assisted
	ArcadeDB Forked Code AI-Assisted	2021	Document / XML, Graph, Key/Value, Relational	Commercial	Forked Code AI-Assisted
	Arroyo Streaming	2023	—	Commercial	Streaming
	Aster Data OLAP Acquired Company	2005	Relational	Commercial	OLAP Acquired Company
	AtomicDB Failed Company	2011	Object-Oriented	Commercial	Failed Company
	Atoti OLAP	2005	Relational	Commercial	OLAP
	Aurora	2014	Relational	Commercial
	Aurora DSQL Serverless OLTP	2023	Relational	Commercial	Serverless OLTP
	AvionDB Abandoned Project Peer-to-Peer	2020	Document / XML	Commercial	Abandoned Project Peer-to-Peer
	Axibase Time-Series Failed Company	2004	—	Commercial	Time-Series Failed Company
	Azure HorizonDB	2026	—	Commercial
	Azure SQL Database	2009	Relational	Commercial
	BagelDB	2023	Vector	Commercial
	BangDB Multi-Model NoSQL	2015	Key/Value	Commercial	Multi-Model NoSQL
	Barrel DB DocDB	2025	—	Commercial
	Barrel DB Vector	2025	—	Commercial
	Basic	2023	Document / XML	Commercial
	BASIS	—	Relational	Commercial
	BemiDB Acquired Company	2024	—	Commercial	Acquired Company
	Berkeley DB Acquired Company OLTP DBM	1994	Document / XML, Key/Value	Commercial	Acquired Company OLTP DBM
	BigchainDB Abandoned Project Blockchain	2015	Document / XML, Key/Value	Commercial	Abandoned Project Blockchain
	BigQuery OLAP Serverless	2010	Document / XML	Commercial	OLAP Serverless
	BitYota Acquired Company	2011	Relational	Commercial	Acquired Company
	BlackRay Failed Company	2005	Relational	Commercial	Failed Company
	Blazegraph Acquired Company Abandoned Project	2006	Graph, Triplestore / RDF	Commercial	Acquired Company Abandoned Project
	BlazingSQL OLAP Abandoned Project Failed Company	2015	Relational	Commercial	OLAP Abandoned Project Failed Company
	BlobCity Failed Company	2015	Document / XML, Relational	Commercial	Failed Company
	Brytlyt OLAP Forked Code Acquired Company	2013	Relational	Commercial	OLAP Forked Code Acquired Company
	Btrieve Acquired Company	1982	Network	Commercial	Acquired Company
BU	Bunny Database	—	—	Commercial
	ByConity OLAP	2020	Relational	Commercial	OLAP
	Caché	1997	Array / Matrix	Commercial
	Cachegrand Cache	2018	Key/Value	Commercial	Cache
	CapyDB Nearest Neighbor Search	2024	Document / XML	Commercial	Nearest Neighbor Search
	Cedalio Blockchain	2022	Document / XML	Commercial	Blockchain
	CedarDB OLAP Forked Code OLTP	2023	Relational, Array / Matrix	Commercial	OLAP Forked Code OLTP
	CheetahDB	2018	Relational	Commercial
	Chroma Nearest Neighbor Search AI-Assisted	2022	Document / XML	Commercial	Nearest Neighbor Search AI-Assisted
	Chronicle Map AI-Assisted	2014	Key/Value	Commercial	AI-Assisted
	Chronix Time-Series Abandoned Project	2015	—	Commercial	Time-Series Abandoned Project
	Citus OLAP Acquired Company AI-Assisted	2010	Relational	Commercial	OLAP Acquired Company AI-Assisted
	ClearDB Acquired Company	2010	Relational	Commercial	Acquired Company
	ClickHouse OLAP AI-Assisted	2016	Relational	Commercial	OLAP AI-Assisted
	ClickHouse Cloud Hosting Service	2022	—	Commercial	Hosting Service
	CloseVector Nearest Neighbor Search	2023	Document / XML, Vector	Commercial	Nearest Neighbor Search
	Cloudant Acquired Company OLTP NoSQL	2008	Document / XML	Commercial	Acquired Company OLTP NoSQL
	Cloudberry OLAP Forked Code Revival Project	2023	Relational	Commercial	OLAP Forked Code Revival Project
	Cloud BigTable	2005	Column Family / Wide-Column	Commercial
	Cloud Datastore NoSQL	2013	—	Commercial	NoSQL
	Cloud Firestore Serverless	2017	Document / XML	Commercial	Serverless
	Cloud Memorystore Cache Hosting Service	—	—	Commercial	Cache Hosting Service
CL	CloudSearch Search Engine	2012	Document / XML	Commercial	Search Engine
	Cloud Spanner NewSQL	2007	—	Commercial	NewSQL
	Clusterpoint Failed Company NoSQL	2006	Document / XML	Commercial	Failed Company NoSQL
	Clustrix NewSQL Acquired Company OLTP	2006	Relational	Commercial	NewSQL Acquired Company OLTP
	CnosDB Time-Series	2021	Relational	Commercial	Time-Series
	CockroachDB NewSQL OLTP AI-Assisted	2014	Relational	Commercial	NewSQL OLTP AI-Assisted
	Coherence Cache Acquired Company	2000	Object-Oriented	Commercial	Cache Acquired Company
	CompleteDB Abandoned Project OLTP	2012	Relational	Commercial	Abandoned Project OLTP
	ComputeDB OLAP Acquired Company Abandoned Project	2015	Relational	Commercial	OLAP Acquired Company Abandoned Project
	Concourse	2012	Document / XML	Commercial
	CornerStone Acquired Company	1985	Relational	Commercial	Acquired Company
	CortexDB Multi-Model NoSQL	2014	Document / XML, Key/Value	Commercial	Multi-Model NoSQL
	Cosmos DB	2015	Key/Value, Graph, Column Family / Wide-Column	Commercial
	Couchbase NoSQL	2010	Key/Value, Document / XML	Commercial	NoSQL
	CovenantSQL Abandoned Project Blockchain	2018	Relational	Commercial	Abandoned Project Blockchain
CQ	CQL++ Failed Company	1994	Relational	Commercial	Failed Company
	CrateDB	2014	—	Commercial
	CSQL Failed Company	2005	Relational	Commercial	Failed Company
	cubeSQL Acquired Company	2003	Relational	Commercial	Acquired Company
	D3 Acquired Company	1999	Relational	Commercial	Acquired Company
	Daffodil DB	2003	Relational	Commercial
	DaggerDB	2014	Relational	Commercial
	dashDB Hosting Service	2014	—	Commercial	Hosting Service
	Databend AI-Assisted	2020	Relational	Commercial	AI-Assisted
	DataEase Acquired Company OLTP	1981	Relational	Commercial	Acquired Company OLTP
	DATAllegro OLAP Acquired Company	2003	Relational	Commercial	OLAP Acquired Company
	Datameer	2009	—	Commercial
	Datascope	1996	Relational	Commercial
	DataStax	2010	—	Commercial
	Dataupia Failed Company	2005	Relational	Commercial	Failed Company
	Datomic Acquired Company	2012	Key/Value	Commercial	Acquired Company
	Db2	1983	Document / XML, Relational	Commercial
	DB4IoT	2016	Document / XML	Commercial
	db4o Acquired Company Abandoned Project	2000	Object-Oriented	Commercial	Acquired Company Abandoned Project
	DB9 Serverless OLTP	2026	Relational	Commercial	Serverless OLTP
	dBASE xBase	1979	Relational	Commercial	xBase
	DBIX	1996	—	Commercial
	DBMaker	1994	Relational	Commercial
DB	DBMS-20	—	Network	Commercial
DB	DBOMP	1968	Hierarchical	Commercial
	DeepDB Abandoned Project Failed Company	2010	Relational	Commercial	Abandoned Project Failed Company
	DefraDB Peer-to-Peer AI-Assisted	2019	Document / XML	Commercial	Peer-to-Peer AI-Assisted
	Delta Lake AI-Assisted	2019	Column Family / Wide-Column	Commercial	AI-Assisted
	DeviceSQL Streaming	1998	Relational	Commercial	Streaming
	DGraph Acquired Company AI-Assisted	2015	Graph	Commercial	Acquired Company AI-Assisted
	DittoBitto	2001	Relational	Commercial
	Djondb Abandoned Project	2012	Document / XML	Commercial	Abandoned Project
	DMSII	1972	Network	Commercial
	Dnaerys	—	—	Commercial
	DocumentDB	2019	Document / XML	Commercial
	DocumentDB Middleware NoSQL AI-Assisted	2023	Document / XML	Commercial	Middleware NoSQL AI-Assisted
	DolphinDB Time-Series	2018	Relational	Commercial	Time-Series
	Dragonfly Cache AI-Assisted	2021	Key/Value	Commercial	Cache AI-Assisted
	Dremio OLAP Query Engine Acquired Company Data Lake	2015	Relational	Commercial	OLAP Query Engine Acquired Company Data Lake
	Dydra	2010	Triplestore / RDF	Commercial
	DynamoDB OLTP NoSQL	2012	Document / XML, Key/Value	Commercial	OLTP NoSQL
	EasyDB Failed Company	2019	Document / XML	Commercial	Failed Company
	EcoDB Failed Company	2018	Document / XML	Commercial	Failed Company
	EdgelessDB Abandoned Project	2021	Relational	Commercial	Abandoned Project
	EffiProz Abandoned Project	—	Relational	Commercial	Abandoned Project
	ekoDB	2024	Document / XML	Commercial
	ElevateDB	2006	Relational	Commercial
	Elliptics Abandoned Project	2009	Key/Value	Commercial	Abandoned Project
	Eloquera	2008	Object-Oriented	Commercial
	Empress	1979	Relational	Commercial
EN	Encompass	1981	Relational	Commercial
	Endatabas OLAP Abandoned Project OLTP Immutable	2023	Document / XML, Relational	Commercial	OLAP Abandoned Project OLTP Immutable
	Endeca OLAP Acquired Company	1999	Document / XML	Commercial	OLAP Acquired Company
	Endee AI-Assisted	2026	—	Commercial	AI-Assisted
	Engram AI-Assisted	2026	Graph	Commercial	AI-Assisted
	Epsilla Nearest Neighbor Search	2023	Array / Matrix	Commercial	Nearest Neighbor Search
	EraDB Acquired Company	2019	Document / XML	Commercial	Acquired Company
	EsgynDB Failed Company	2015	Relational	Commercial	Failed Company
	Essbase OLAP Acquired Company	1992	Array / Matrix	Commercial	OLAP Acquired Company
	Essentia Failed Company	—	Object-Oriented, Relational	Commercial	Failed Company
	EventQL OLAP Abandoned Project	2014	Relational	Commercial	OLAP Abandoned Project
	EventSourcingDB Time-Series Immutable	2022	Document / XML	Commercial	Time-Series Immutable
	evitaDB AI-Assisted	2020	Document / XML	Commercial	AI-Assisted
	Exasol	2000	Relational	Commercial
	eXist-db NoSQL AI-Assisted	2000	Document / XML	Commercial	NoSQL AI-Assisted
	Exorbyte	2000	—	Commercial
	Express Acquired Company	1970	Array / Matrix	Commercial	Acquired Company
EX	Extensible Storage Engine	1994	Key/Value	Commercial
	eXtremeDB Cache Time-Series OLTP Middleware	2001	Column Family / Wide-Column, Entity-Relationship, Key/Value, Relational	Commercial	Cache Time-Series OLTP Middleware
	FairCom DB	1984	—	Commercial
	Falcon Abandoned Project	2006	—	Commercial	Abandoned Project
	FalkorDB AI-Assisted	2023	Graph	Commercial	AI-Assisted
	FASTER	2018	Key/Value	Commercial
	FastObjects Acquired Company	1993	Object-Oriented	Commercial	Acquired Company
	FatDB Cache Failed Company NoSQL	2012	Key/Value	Commercial	Cache Failed Company NoSQL
	FathomDB Acquired Company Hosting Service	2009	—	Commercial	Acquired Company Hosting Service
	FaunaDB Serverless Failed Company	2012	Document / XML, Graph, Key/Value, Relational	Commercial	Serverless Failed Company
	FeatureForm Acquired Company Nearest Neighbor Search	2020	Vector	Commercial	Acquired Company Nearest Neighbor Search
FI	FileDb Abandoned Project NoSQL	2011	Relational	Commercial	Abandoned Project NoSQL
	FileMaker Acquired Company	1985	Relational	Commercial	Acquired Company
	FinchDB	2015	Document / XML	Commercial
	Firebase Acquired Company NoSQL	2011	Document / XML	Commercial	Acquired Company NoSQL
	Firebolt OLAP Forked Code	2020	Relational	Commercial	OLAP Forked Code
	Fireproof Peer-to-Peer AI-Assisted	2022	Document / XML	Commercial	Peer-to-Peer AI-Assisted
	FirstSQL/J Failed Company	2001	Relational	Commercial	Failed Company
FL	FlashFiler Failed Company	1985	—	Commercial	Failed Company
	Fluree Blockchain AI-Assisted	2017	Document / XML, Graph, Triplestore / RDF, Relational	Commercial	Blockchain AI-Assisted
	FoxPro xBase	1984	Relational	Commercial	xBase
	FrontBase	1993	Relational	Commercial
	FusionDB Abandoned Project	2019	Document / XML	Commercial	Abandoned Project
	Gaia Abandoned Project Failed Company	2020	Object-Oriented	Commercial	Abandoned Project Failed Company
	Galaxybase	2013	Graph	Commercial
	GaussDB	2011	Relational	Commercial
	GBase	2010	—	Commercial
	Gel OLAP AI-Assisted	2018	Relational	Commercial	OLAP AI-Assisted
	GemStone/S	1986	Object-Oriented	Commercial
	Genesis DB Streaming	2025	Document / XML	Commercial	Streaming
	GenieDB Failed Company Hosting Service	2008	Relational	Commercial	Failed Company Hosting Service
	GeoSpock DB Failed Company	2013	Relational	Commercial	Failed Company
	GlareDB Abandoned Project Middleware AI-Assisted	2022	Relational	Commercial	Abandoned Project Middleware AI-Assisted
	GlobalsDB	2011	Array / Matrix	Commercial
	GoldenDB	—	—	Commercial
	Goldilocks	2010	Relational	Commercial
GO	Google F1	2013	Relational	Commercial
	GoshawkDB Abandoned Project	2015	Object-Oriented	Commercial	Abandoned Project
	GraphBase	—	Graph	Commercial
	GraphDB	2000	Triplestore / RDF	Commercial
	GrapheneDB Hosting Service	2012	Graph	Commercial	Hosting Service
GR	GraphLite	2025	—	Commercial
	GreatSQL	2020	Relational	Commercial
	Greenplum OLAP Forked Code Acquired Company	2003	Relational	Commercial	OLAP Forked Code Acquired Company
	GreptimeDB Time-Series AI-Assisted	2022	Relational	Commercial	Time-Series AI-Assisted
	GridDB	2011	Key/Value	Commercial
	GridGain	2007	Key/Value	Commercial
	Groonga AI-Assisted	2009	—	Commercial	AI-Assisted
	GT.M	1986	Key/Value	Commercial
	GUN Peer-to-Peer	2014	Graph	Commercial	Peer-to-Peer
	Hadapt OLAP Acquired Company Middleware	2009	Relational	Commercial	OLAP Acquired Company Middleware
	HANA	2010	Column Family / Wide-Column	Commercial
	HarperDB Serverless NoSQL	2017	Document / XML	Commercial	Serverless NoSQL
	Hazelcast Cache	2008	Key/Value	Commercial	Cache
	HeavyDB OLAP Acquired Company Abandoned Project	2013	Relational	Commercial	OLAP Acquired Company Abandoned Project
	Hekaton OLTP	2012	Relational	Commercial	OLTP
	Helium Failed Company	2017	Key/Value	Commercial	Failed Company
	HelixDB OLTP Nearest Neighbor Search AI-Assisted	2024	Graph, Vector	Commercial	OLTP Nearest Neighbor Search AI-Assisted
	HexaDB	2023	Relational	Commercial
	HFSQL	—	—	Commercial
	HighContext Serverless	2023	Key/Value	Commercial	Serverless
	HiRDB	1994	Document / XML, Relational	Commercial
HO	HorizonDB Geospatial	2025	Document / XML	Commercial	Geospatial
	hss.db	2009	Relational	Commercial
	HStreamDB Streaming	2020	Relational	Commercial	Streaming
	Hydra OLAP Abandoned Project Failed Company	2022	Relational	Commercial	OLAP Abandoned Project Failed Company
	Hypertable Acquired Company Abandoned Project	2008	Column Family / Wide-Column	Commercial	Acquired Company Abandoned Project
	iBoxDB Serverless Mobile NoSQL	2014	Document / XML	Commercial	Serverless Mobile NoSQL
	IDMS	1973	Network	Commercial
	Illustra Acquired Company OLTP	1992	Relational	Commercial	Acquired Company OLTP
	Impala OLAP AI-Assisted	2013	Relational	Commercial	OLAP AI-Assisted
	IMS OLTP	1966	Hierarchical	Commercial	OLTP
	Indica	2014	—	Commercial
	InfiniDB OLAP Abandoned Project Failed Company	2000	Relational	Commercial	OLAP Abandoned Project Failed Company
	Infinispan Cache	2009	Key/Value	Commercial	Cache
	InfiniteGraph	2010	Graph	Commercial
	InfinityDB	2002	Key/Value, Graph, Array / Matrix, Hierarchical, Relational	Commercial
	Infino Query Engine Nearest Neighbor Search	—	Relational	Commercial	Query Engine Nearest Neighbor Search
	InfluxDB Time-Series AI-Assisted	2013	Column Family / Wide-Column	Commercial	Time-Series AI-Assisted
	Infobright OLAP Acquired Company	2005	Relational	Commercial	OLAP Acquired Company
	InfoFrame Abandoned Project	2013	Relational	Commercial	Abandoned Project
	Informix Acquired Company	1980	Relational	Commercial	Acquired Company
	Ingres Acquired Company	1974	Relational	Commercial	Acquired Company
	InMemory.Net	2014	Relational	Commercial
	Instant	—	—	Commercial
	InstantDB Failed Company	1997	Relational	Commercial	Failed Company
IN	Integrated Data Store	1964	Network	Commercial
	InterBase Acquired Company	1984	Relational	Commercial	Acquired Company
	IQ Acquired Company	1992	Relational	Commercial	Acquired Company
	IQrypt Failed Company	2015	Document / XML	Commercial	Failed Company
IR	IRIS	—	—	Commercial
	ITTIA DB Time-Series OLTP	2000	Relational	Commercial	Time-Series OLTP
	Jade	1996	Object-Oriented	Commercial
	JaguarDB Nearest Neighbor Search	2017	Array / Matrix, Key/Value	Commercial	Nearest Neighbor Search
	JasDB	2013	Document / XML	Commercial
	Jazz AI-Assisted	2026	Relational	Commercial	AI-Assisted
	jBASE Acquired Company	1989	Multi-Value	Commercial	Acquired Company
	JSONBin.io	2017	Document / XML	Commercial
	Just Logic/SQL	1994	Relational	Commercial
	JustOneDB Acquired Company	2010	Relational	Commercial	Acquired Company
	KantoDB OLTP	2025	Relational	Commercial	OLTP
	Kdb+ Acquired Company	1998	Relational	Commercial	Acquired Company
	Kerf	2014	—	Commercial
	KeyDB Acquired Company Abandoned Project NoSQL	2019	—	Commercial	Acquired Company Abandoned Project NoSQL
	Kinetica OLAP	2009	Relational	Commercial	OLAP
	Kingbase	1999	—	Commercial
	Kinto NoSQL AI-Assisted	2014	Document / XML	Commercial	NoSQL AI-Assisted
	KitaroDB	2012	Key/Value	Commercial
	Kognitio	—	—	Commercial
	ksqlDB Streaming AI-Assisted	2017	Key/Value, Relational	Commercial	Streaming AI-Assisted
	Kubl Acquired Company	1994	Relational	Commercial	Acquired Company
	KurrentDB Time-Series AI-Assisted	2012	Document / XML	Commercial	Time-Series AI-Assisted
	Kuzu Acquired Company Abandoned Project Nearest Neighbor Search	2020	Graph	Commercial	Acquired Company Abandoned Project Nearest Neighbor Search
	KVdb NoSQL	2018	Key/Value	Commercial	NoSQL
	Kvrocks NoSQL AI-Assisted	2019	Key/Value	Commercial	NoSQL AI-Assisted
	LazyDB	2020	Document / XML	Commercial
	LeanXcale OLAP OLTP	2010	Relational	Commercial	OLAP OLTP
	LevelDB MMAP	2011	Key/Value	Commercial	MMAP
	libSQL Forked Code OLTP	2022	Relational	Commercial	Forked Code OLTP
	Linter	1990	Relational	Commercial
	LMDB MMAP DBM AI-Assisted	2011	Key/Value	Commercial	MMAP DBM AI-Assisted
	lnx Search Engine	—	Document / XML	Commercial	Search Engine
	LogicBlox Acquired Company	—	—	Commercial	Acquired Company
	LucidDB OLAP Abandoned Project	2004	Relational	Commercial	OLAP Abandoned Project
	Machbase Time-Series	2017	Relational	Commercial	Time-Series
	MammothDB OLAP Acquired Company	2012	Relational	Commercial	OLAP Acquired Company
	Manticore Search Search Engine	2017	Relational	Commercial	Search Engine
	MapR-DB Acquired Company	2012	Column Family / Wide-Column	Commercial	Acquired Company
	MarkLogic Acquired Company	2001	Document / XML, Triplestore / RDF	Commercial	Acquired Company
	Marqo Search Engine AI-Assisted	2022	Document / XML, Vector	Commercial	Search Engine AI-Assisted
	Materialize Streaming AI-Assisted	2019	Relational	Commercial	Streaming AI-Assisted
	Matisse	1986	Document / XML	Commercial
	MatrixOne OLAP OLTP Streaming AI-Assisted	2021	Relational	Commercial	OLAP OLTP Streaming AI-Assisted
	MaxDB OLTP	1977	Relational	Commercial	OLTP
	Mckoi SQL Database Abandoned Project Failed Company	1998	Relational	Commercial	Abandoned Project Failed Company
MD	MDBMS	1998	Relational	Commercial
	Meilisearch Search Engine AI-Assisted	2018	Document / XML	Commercial	Search Engine AI-Assisted
	Memcached Cache	2003	Key/Value	Commercial	Cache
	Memgraph AI-Assisted	2016	Graph	Commercial	AI-Assisted
	Memstate Abandoned Project	2017	Object-Oriented	Commercial	Abandoned Project
	Mimer SQL	1974	Relational	Commercial
	Mimir Time-Series AI-Assisted	2016	Relational	Commercial	Time-Series AI-Assisted
	MLDB Acquired Company	2015	—	Commercial	Acquired Company
MO	Model 204 Acquired Company	1965	Entity-Attribute-Value	Commercial	Acquired Company
	ModeShape Abandoned Project	2008	Object-Oriented	Commercial	Abandoned Project
	Mondrian OLAP Acquired Company	2002	Relational	Commercial	OLAP Acquired Company
	MonetDB OLAP MMAP	2002	Column Family / Wide-Column	Commercial	OLAP MMAP
	MongoDB NoSQL AI-Assisted	2009	Document / XML	Commercial	NoSQL AI-Assisted
	Mongrel Serverless Failed Company	2021	Key/Value	Commercial	Serverless Failed Company
	MonographDB	2021	Relational	Commercial
	MotherDuck Hosting Service	2022	Relational	Commercial	Hosting Service
	mSQL	1994	Relational	Commercial
	mvBase Acquired Company	—	Multi-Value	Commercial	Acquired Company
	MyScaleDB OLAP Forked Code Failed Company AI-Assisted	2021	Relational	Commercial	OLAP Forked Code Failed Company AI-Assisted
	NamiDB NoSQL	2026	Graph	Commercial	NoSQL
	NavDB Abandoned Project	2017	Key/Value, Relational	Commercial	Abandoned Project
	NCache Cache	2015	Key/Value	Commercial	Cache
	NDatabase	—	Object-Oriented	Commercial
ND	NDB Cluster Acquired Company OLTP	—	Key/Value	Commercial	Acquired Company OLTP
	NEO	2005	Document / XML	Commercial
	Neo4j NoSQL AI-Assisted	2007	Graph	Commercial	NoSQL AI-Assisted
	Neon Serverless Forked Code Acquired Company OLTP	2021	Relational	Commercial	Serverless Forked Code Acquired Company OLTP
NE	Neoview Abandoned Project	2007	Relational	Commercial	Abandoned Project
	Neptune	2018	Graph, Triplestore / RDF	Commercial
	Netezza OLAP Acquired Company	1999	Relational	Commercial	OLAP Acquired Company
	Netlify Database Serverless Hosting Service	2024	Relational	Commercial	Serverless Hosting Service
	Neug AI-Assisted	2026	Graph	Commercial	AI-Assisted
	NeuroDB	2020	Graph	Commercial
	NexusDB	2003	Relational	Commercial
	Nile OLTP	2022	Relational	Commercial	OLTP
	Ninja Database	—	Object-Oriented, Relational	Commercial
	NodeDB Multi-Model Nearest Neighbor Search AI-Assisted	2026	Vector, Graph, Array / Matrix, Document / XML, Relational	Commercial	Multi-Model Nearest Neighbor Search AI-Assisted
	NonStop SQL Acquired Company OLTP	1987	Relational	Commercial	Acquired Company OLTP
	NosDB Abandoned Project	2013	Document / XML	Commercial	Abandoned Project
	NoSQL Object Database	1988	Object-Oriented	Commercial
	NucliaDB Nearest Neighbor Search Search Engine	2021	Vector	Commercial	Nearest Neighbor Search Search Engine
	NuoDB NewSQL Acquired Company	2010	Relational	Commercial	NewSQL Acquired Company
	O2 Failed Company	1990	Object-Oriented	Commercial	Failed Company
	ObjectBox Time-Series Nearest Neighbor Search MMAP Mobile NoSQL	2016	Object-Oriented	Commercial	Time-Series Nearest Neighbor Search MMAP Mobile NoSQL
	ObjectDatabase++	2003	Object-Oriented	Commercial
	ObjectDB	2010	Object-Oriented	Commercial
	Objectivity/DB	1990	Object-Oriented	Commercial
	ObjectStore Acquired Company	1988	Object-Oriented	Commercial	Acquired Company
	ObsessionDB OLAP Hosting Service	2024	Relational	Commercial	OLAP Hosting Service
	OceanBase	2010	Relational	Commercial
	Ocient	2016	Relational	Commercial
	ODABA	1994	Object-Oriented	Commercial
	OlegDB MMAP NoSQL	2014	Key/Value	Commercial	MMAP NoSQL
	OnceDB Cache Abandoned Project Failed Company	2016	Document / XML	Commercial	Cache Abandoned Project Failed Company
	OneDB	2020	Relational	Commercial
	OpenBase SQL Failed Company	1991	Relational	Commercial	Failed Company
	OpenEdge OLTP	1984	Relational	Commercial	OLTP
OP	open-gpdb OLAP Forked Code	2024	Relational	Commercial	OLAP Forked Code
	OpenQM Acquired Company	1993	Multi-Value	Commercial	Acquired Company
	OpenSearch Forked Code Search Engine AI-Assisted	2021	Document / XML	Commercial	Forked Code Search Engine AI-Assisted
	OpenViking AI-Assisted	2026	—	Commercial	AI-Assisted
	Oracle NoSQL NoSQL	2011	Key/Value	Commercial	NoSQL
	Oracle RDBMS	1977	Key/Value, Graph, Triplestore / RDF, Document / XML, Relational	Commercial
	OrientDB Multi-Model Acquired Company NoSQL	2010	Document / XML, Graph, Key/Value, Object-Oriented	Commercial	Multi-Model Acquired Company NoSQL
	OrigoDB Abandoned Project	2011	Key/Value, Graph, Object-Oriented, Document / XML, Relational	Commercial	Abandoned Project
	OrioleDB Acquired Company AI-Assisted	2021	Relational	Commercial	Acquired Company AI-Assisted
OS	OSIsoft PI	—	—	Commercial
	OushuDB	2016	Relational	Commercial
	Ovrimos Failed Company	1996	—	Commercial	Failed Company
	Oxia AI-Assisted	2021	Key/Value	Commercial	AI-Assisted
	Oxla OLAP Acquired Company	2020	Relational	Commercial	OLAP Acquired Company
	PancakeDB	2021	—	Commercial
	ParAccel OLAP Acquired Company	2006	Relational	Commercial	OLAP Acquired Company
	ParadeDB OLAP Nearest Neighbor Search Search Engine AI-Assisted	2023	Relational	Commercial	OLAP Nearest Neighbor Search Search Engine AI-Assisted
	Paradox Acquired Company	1985	Relational	Commercial	Acquired Company
	ParStream OLAP Acquired Company Abandoned Project	2010	Relational	Commercial	OLAP Acquired Company Abandoned Project
	Percona Server Forked Code	2006	Relational	Commercial	Forked Code
	Pervasive PSQL Acquired Company	1996	Key/Value, Relational	Commercial	Acquired Company
	picoSQL Abandoned Project	1995	Relational	Commercial	Abandoned Project
	PieCloudDB OLAP	2021	Relational	Commercial	OLAP
	Pilosa Abandoned Project	2017	Vector	Commercial	Abandoned Project
	Pinecone Nearest Neighbor Search Search Engine	2019	Vector	Commercial	Nearest Neighbor Search Search Engine
	PipelineDB Acquired Company Abandoned Project Streaming	2013	Relational	Commercial	Acquired Company Abandoned Project Streaming
	PlanetScale Forked Code OLTP	2018	Relational	Commercial	Forked Code OLTP
	PointBase Acquired Company	1998	Relational	Commercial	Acquired Company
	PolarDB	2017	Relational	Commercial
	Polars Query Engine AI-Assisted	2020	—	Commercial	Query Engine AI-Assisted
	Polybase Blockchain	2022	Document / XML	Commercial	Blockchain
	Polyhedra Acquired Company	1994	Relational	Commercial	Acquired Company
	Polypheny	2017	Document / XML, Graph, Relational	Commercial
	PrimeBase OLTP	1990	Relational	Commercial	OLTP
	Proton Streaming AI-Assisted	2021	Relational	Commercial	Streaming AI-Assisted
	ProtonBase OLAP	2021	Document / XML, Relational	Commercial	OLAP
	ProvenDB Acquired Company Blockchain Middleware	2018	Document / XML	Commercial	Acquired Company Blockchain Middleware
	P*TIME Acquired Company OLTP	2000	Relational	Commercial	Acquired Company OLTP
	Qdrant Nearest Neighbor Search Search Engine MMAP AI-Assisted	2020	Vector	Commercial	Nearest Neighbor Search Search Engine MMAP AI-Assisted
	qikkDB OLAP Abandoned Project Failed Company	2019	Relational	Commercial	OLAP Abandoned Project Failed Company
	Qizx Acquired Company	2004	Document / XML	Commercial	Acquired Company
	QLDB Abandoned Project Blockchain	2018	Document / XML	Commercial	Abandoned Project Blockchain
	Quadcap Embeddable Database Failed Company	1999	Relational	Commercial	Failed Company
	Quadrable Abandoned Project	2020	Key/Value	Commercial	Abandoned Project
	quasardb	2008	Key/Value	Commercial
	QuestDB Time-Series AI-Assisted	2014	Relational	Commercial	Time-Series AI-Assisted
QU	Quickbase	—	—	Commercial
	Quickwit Acquired Company Search Engine AI-Assisted	2021	Document / XML	Commercial	Acquired Company Search Engine AI-Assisted
	RadonDB Abandoned Project Failed Company	2018	Relational	Commercial	Abandoned Project Failed Company
	RaimaDB Time-Series	1984	Network, Relational	Commercial	Time-Series
	RainStor Acquired Company	2004	Relational	Commercial	Acquired Company
	RapidsDB OLAP Middleware	2014	—	Commercial	OLAP Middleware
	RaptorDB Forked Code	2024	Relational	Commercial	Forked Code
	Rasdaman	1989	Array / Matrix	Commercial
	RavenDB MMAP NoSQL AI-Assisted	2009	Document / XML, Key/Value	Commercial	MMAP NoSQL AI-Assisted
	R:BASE	1981	Relational	Commercial
	/rdb Abandoned Project	1984	Relational	Commercial	Abandoned Project
	Rdb/VMS Acquired Company	1984	Relational	Commercial	Acquired Company
	RDFox	—	Triplestore / RDF	Commercial
	ReadySet Cache Middleware AI-Assisted	2020	Relational	Commercial	Cache Middleware AI-Assisted
	Reality Acquired Company	1973	—	Commercial	Acquired Company
	Realm Acquired Company Abandoned Project Mobile	2011	Object-Oriented	Commercial	Acquired Company Abandoned Project Mobile
	Red Brick OLAP Acquired Company	1990	Relational	Commercial	OLAP Acquired Company
	RedDatabase Forked Code	2006	Relational	Commercial	Forked Code
	Redis Cache OLTP AI-Assisted	2009	Key/Value	Commercial	Cache OLTP AI-Assisted
	RedisGraph	2018	Graph	Commercial
	RediSQL Abandoned Project	2016	Relational	Commercial	Abandoned Project
	Redshift OLAP Serverless	2012	Relational	Commercial	OLAP Serverless
	ReductStore Time-Series AI-Assisted	2021	Key/Value	Commercial	Time-Series AI-Assisted
	Regatta OLAP OLTP	2020	Relational	Commercial	OLAP OLTP
	ReifyDB OLTP	2025	Relational	Commercial	OLTP
	RelationalAI	2018	Graph, Relational	Commercial
	Relational Database Service Hosting Service	2009	—	Commercial	Hosting Service
	Resin Cache Cache Middleware	1998	Key/Value	Commercial	Cache Middleware
	Riak Abandoned Project Failed Company NoSQL	2010	Key/Value	Commercial	Abandoned Project Failed Company NoSQL
	RisingWave Streaming AI-Assisted	2021	Relational	Commercial	Streaming AI-Assisted
	Rockall-DB	—	—	Commercial
	Rockset OLAP Acquired Company	2016	Relational	Commercial	OLAP Acquired Company
	ROMA Abandoned Project	2009	Key/Value	Commercial	Abandoned Project
	Rosebase Failed Company	1992	Relational	Commercial	Failed Company
	RudraDB Nearest Neighbor Search	2025	Document / XML, Vector	Commercial	Nearest Neighbor Search
	Sadas Engine	—	Relational	Commercial
	ScalarDB	—	—	Commercial
	ScaleBase Acquired Company	2009	—	Commercial	Acquired Company
	ScaleDB Failed Company	2005	—	Commercial	Failed Company
	ScaleOut StateServer	2005	Key/Value	Commercial
	ScalienDB Abandoned Project Failed Company	2010	Key/Value	Commercial	Abandoned Project Failed Company
	SchemafreeSQL	2012	Document / XML	Commercial
	SchoonerSQL Acquired Company OLTP	2007	Relational	Commercial	Acquired Company OLTP
	SciDB OLAP	2008	Array / Matrix	Commercial	OLAP
	ScimoreDB	2005	Relational	Commercial
	ScopeDB	2024	Relational	Commercial
	ScratchDB OLAP Middleware	2023	Document / XML	Commercial	OLAP Middleware
	Scylla NoSQL AI-Assisted	2014	Key/Value, Column Family / Wide-Column	Commercial	NoSQL AI-Assisted
	Seafowl OLAP Acquired Company	2022	Relational	Commercial	OLAP Acquired Company
	SearchBlox Search Engine	2003	Document / XML	Commercial	Search Engine
	SeekDB AI-Assisted	2025	—	Commercial	AI-Assisted
	SequoiaDB	2011	Document / XML	Commercial
	SereneDB OLAP OLTP Search Engine AI-Assisted	2024	Relational	Commercial	OLAP OLTP Search Engine AI-Assisted
	ShannonBase	2024	Relational, Vector	Commercial
	ShareBase Acquired Company	1979	—	Commercial	Acquired Company
SH	Shore-MT Forked Code OLTP	2007	Object-Oriented	Commercial	Forked Code OLTP
	Siaqodb Abandoned Project Failed Company NoSQL	—	Document / XML	Commercial	Abandoned Project Failed Company NoSQL
	SimpleDB NoSQL	2007	Key/Value	Commercial	NoSQL
	SingleStore OLAP NewSQL Acquired Company OLTP	2011	Document / XML, Key/Value, Multi-Value, Object-Oriented, Relational, Vector	Commercial	OLAP NewSQL Acquired Company OLTP
	Siodb Abandoned Project	2018	Relational	Commercial	Abandoned Project
	SiriDB Time-Series	2016	—	Commercial	Time-Series
	SKDB OLTP AI-Assisted	2022	Relational	Commercial	OLTP AI-Assisted
	SlicingDice Failed Company	2015	—	Commercial	Failed Company
	SlyceIO	2023	Document / XML	Commercial
	Sneller	2022	Document / XML	Commercial
	Snowflake OLAP	2013	Document / XML, Relational	Commercial	OLAP
	SochDB AI-Assisted	2026	Graph, Relational, Vector	Commercial	AI-Assisted
	SolarSystemDB Serverless Failed Company	2024	—	Commercial	Serverless Failed Company
	solidDB Acquired Company OLTP	1992	Relational	Commercial	Acquired Company OLTP
	sones GraphDB Abandoned Project Failed Company	2007	Graph	Commercial	Abandoned Project Failed Company
	SpaceTime	2020	Relational	Commercial
	SpacetimeDB OLTP AI-Assisted	2023	Relational	Commercial	OLTP AI-Assisted
	SparkleDB OLTP	2013	Graph	Commercial	OLTP
	Sparksee	2006	Graph, Object-Oriented	Commercial
	Speedb Forked Code Acquired Company	2020	Key/Value	Commercial	Forked Code Acquired Company
	Sphinx Search Engine	2001	Document / XML	Commercial	Search Engine
	SpiceDB Middleware AI-Assisted	2021	Object-Oriented	Commercial	Middleware AI-Assisted
	Splice Machine Abandoned Project Failed Company	2012	—	Commercial	Abandoned Project Failed Company
	Splunk Acquired Company Search Engine	2002	Key/Value	Commercial	Acquired Company Search Engine
	SpreadsheetDB Failed Company	2017	Document / XML	Commercial	Failed Company
	SQL Anywhere Acquired Company	1992	Relational	Commercial	Acquired Company
	SQLBase Acquired Company	1984	Relational	Commercial	Acquired Company
SQ	SQL/DS	1981	Relational	Commercial
	SQLflex	—	Relational	Commercial
	SQLite OLTP	2000	Relational	Commercial	OLTP
	SQLite.Cloud OLTP Hosting Service	2020	Relational	Commercial	OLTP Hosting Service
	SQL Server	1988	Relational	Commercial
	SQream OLAP	2010	Relational	Commercial	OLAP
	Sqrrl Acquired Company NoSQL	2012	Graph, Key/Value	Commercial	Acquired Company NoSQL
SQ	Squirreling Query Engine Web Browser AI-Assisted	2025	Relational	Commercial	Query Engine Web Browser AI-Assisted
	SRCH² Abandoned Project	2010	—	Commercial	Abandoned Project
	Starcounter	2006	—	Commercial
	Stardog	2005	Triplestore / RDF	Commercial
	StarRocks OLAP AI-Assisted	2021	Relational, Column Family / Wide-Column	Commercial	OLAP AI-Assisted
	StoneDB OLAP Failed Company	2022	Relational	Commercial	OLAP Failed Company
	StormDB Acquired Company	2012	Relational	Commercial	Acquired Company
	Streambase Acquired Company Streaming	2003	—	Commercial	Acquired Company Streaming
	StrixDB	—	Triplestore / RDF	Commercial
	Strozzi NoSQL	1989	Relational	Commercial
	STSdb Failed Company	2008	Key/Value	Commercial	Failed Company
	Supabase OLTP AI-Assisted Hosting Service	2020	—	Commercial	OLTP AI-Assisted Hosting Service
	Superbase	1983	Relational	Commercial
	Supra Server SQL Acquired Company OLTP	1989	Relational	Commercial	Acquired Company OLTP
	SurrealDB Serverless Multi-Model AI-Assisted	2016	Document / XML, Graph, Relational	Commercial	Serverless Multi-Model AI-Assisted
	Swarm64 OLAP Acquired Company	2013	Relational	Commercial	OLAP Acquired Company
	SwayDB Abandoned Project	2018	Key/Value	Commercial	Abandoned Project
	SWC-DB Abandoned Project	2019	Column Family / Wide-Column, Key/Value	Commercial	Abandoned Project
	Swytch Cache	2023	Key/Value	Commercial	Cache
	SynapCores	2026	—	Commercial
	Tablespace	2024	—	Commercial
	Tamino	2000	Document / XML	Commercial
	Tanzu GemFire Cache Acquired Company NoSQL	2002	Key/Value	Commercial	Cache Acquired Company NoSQL
	Tarantool	2008	Key/Value	Commercial
	TayzGrid	—	Object-Oriented	Commercial
	Tdbengine	1985	Relational	Commercial
	TDengine Time-Series AI-Assisted	2017	Relational	Commercial	Time-Series AI-Assisted
	TDSQL	2012	Key/Value, Document / XML, Relational	Commercial
	TensorBase OLAP Abandoned Project Failed Company	2020	Relational	Commercial	OLAP Abandoned Project Failed Company
TE	Tera Abandoned Project	2014	Column Family / Wide-Column	Commercial	Abandoned Project
	Teradata	1979	Document / XML, Graph, Relational	Commercial
	TerminusDB AI-Assisted	2019	Document / XML, Graph, Triplestore / RDF	Commercial	AI-Assisted
	Tesora Acquired Company Middleware	2010	Relational	Commercial	Acquired Company Middleware
	Theseus OLAP Failed Company	2022	Relational	Commercial	OLAP Failed Company
	ThinkSQL Abandoned Project	2000	Relational	Commercial	Abandoned Project
	Tibero OLTP	2003	Relational	Commercial	OLTP
	TiDB NewSQL AI-Assisted	2015	Key/Value	Commercial	NewSQL AI-Assisted
	TigerGraph	2012	Graph	Commercial
	TileDB NoSQL	2014	Array / Matrix	Commercial	NoSQL
	TimescaleDB Time-Series AI-Assisted	2017	Relational	Commercial	Time-Series AI-Assisted
	TimesTen Acquired Company OLTP	1996	Relational	Commercial	Acquired Company OLTP
	Timestream	2018	Relational	Commercial
	Tinybird	2019	—	Commercial
	TokuDB Acquired Company Abandoned Project	2009	Relational	Commercial	Acquired Company Abandoned Project
	TokuMX Forked Code Acquired Company Abandoned Project	2013	Document / XML	Commercial	Forked Code Acquired Company Abandoned Project
	TonicDB OLTP	2025	Key/Value	Commercial	OLTP
	TopK Nearest Neighbor Search Search Engine AI-Assisted	2024	Document / XML	Commercial	Nearest Neighbor Search Search Engine AI-Assisted
TO	TOTAL	—	—	Commercial
	TrailDB Abandoned Project	2014	Relational	Commercial	Abandoned Project
	Transbase	1987	Relational	Commercial
	TreodeDB Abandoned Project	2012	Key/Value	Commercial	Abandoned Project
	Truviso Acquired Company Streaming	2006	Relational	Commercial	Acquired Company Streaming
TU	TurboImage	1972	—	Commercial
	turbopuffer Serverless Nearest Neighbor Search	2023	Vector	Commercial	Serverless Nearest Neighbor Search
	Turso OLTP AI-Assisted	2023	Relational	Commercial	OLTP AI-Assisted
	TypeDB AI-Assisted	2016	Entity-Relationship, Graph	Commercial	AI-Assisted
	UDS/SQL	—	Network	Commercial
	Ultipa OLAP OLTP NoSQL	2019	Graph	Commercial	OLAP OLTP NoSQL
	Ultralite	1999	Relational	Commercial
	Unbounded Failed Company	2020	Document / XML	Commercial	Failed Company
	UniSQL Acquired Company	1991	Relational	Commercial	Acquired Company
UN	UniVerse Acquired Company	1990	—	Commercial	Acquired Company
	UnQLite OLTP NoSQL	—	Document / XML, Key/Value	Commercial	OLTP NoSQL
	UnumDB Abandoned Project Failed Company	2015	Document / XML, Graph, Key/Value, Array / Matrix	Commercial	Abandoned Project Failed Company
	upscaledb OLAP Abandoned Project	2007	Key/Value	Commercial	OLAP Abandoned Project
	Valentina Database OLTP	1998	Relational	Commercial	OLTP
	Vector OLAP Acquired Company	2009	Relational	Commercial	OLAP Acquired Company
	VectorDB Abandoned Project Nearest Neighbor Search	2023	Document / XML, Vector	Commercial	Abandoned Project Nearest Neighbor Search
	Vedis Abandoned Project	2014	Key/Value	Commercial	Abandoned Project
	VelocityDB Abandoned Project	2011	Object-Oriented	Commercial	Abandoned Project
	VeloxDB OLTP	2022	Object-Oriented	Commercial	OLTP
	Vertica OLAP Forked Code Acquired Company	2005	Relational	Commercial	OLAP Forked Code Acquired Company
	vFabric SQLFire	—	—	Commercial
	VillageSQL Forked Code OLTP Revival Project AI-Assisted	2025	Relational	Commercial	Forked Code OLTP Revival Project AI-Assisted
	Virtuoso	1998	Relational	Commercial
	VistaDB	2009	—	Commercial
	Visual FoxPro xBase	1992	Relational	Commercial	xBase
	Vitesse DB OLAP	2014	Relational	Commercial	OLAP
	VoltDB NewSQL	2009	Relational	Commercial	NewSQL
VU	VulcanDB Failed Company	2012	Object-Oriented	Commercial	Failed Company
	WakandaDB Failed Company	1996	Document / XML	Commercial	Failed Company
	WarehousePG Forked Code AI-Assisted	2025	Relational	Commercial	Forked Code AI-Assisted
	Warp 10 Time-Series	2013	—	Commercial	Time-Series
	Weaviate Nearest Neighbor Search Search Engine MMAP AI-Assisted	2016	Vector	Commercial	Nearest Neighbor Search Search Engine MMAP AI-Assisted
WE	WebSphere eXtreme Scale	—	Object-Oriented	Commercial
	WiredTiger Acquired Company AI-Assisted	2008	Key/Value	Commercial	Acquired Company AI-Assisted
	XAP	2000	Key/Value	Commercial
	Xapian Search Engine	2001	Document / XML	Commercial	Search Engine
XD	XDB Enterprise Server Acquired Company	1998	Relational	Commercial	Acquired Company
	Xeround Failed Company Hosting Service	2005	Relational	Commercial	Failed Company Hosting Service
	XTDB AI-Assisted	2018	Document / XML	Commercial	AI-Assisted
	XtremeData OLAP	2003	Relational	Commercial	OLAP
	Yaacomo OLAP Failed Company	2008	Relational	Commercial	OLAP Failed Company
	Yanza Time-Series Failed Company	2008	Document / XML	Commercial	Time-Series Failed Company
	YDB NewSQL OLTP AI-Assisted	2014	Relational	Commercial	NewSQL OLTP AI-Assisted
	Yellowbrick OLAP	2014	Relational	Commercial	OLAP
	YottaDB NoSQL	2001	Key/Value	Commercial	NoSQL
	YTsaurus AI-Assisted	2010	—	Commercial	AI-Assisted
	YugabyteDB Forked Code OLTP AI-Assisted	2016	Key/Value, Relational	Commercial	Forked Code OLTP AI-Assisted
	zeeSQL	—	—	Commercial
	ZeroDB Abandoned Project	2015	Document / XML	Commercial	Abandoned Project
	ZippyDB Cache Serverless Failed Company	2014	Key/Value	Commercial	Cache Serverless Failed Company
	Zvec	—	—	Commercial