Neo4j

Developer(s)| Neo4j Inc.
Initial release| 2007; 19 years ago (2007)[1]
Written in| Java
Type| Graph database
License|

* Source code: GPLv3 and AGPLv3 with Commons Clause
* Binaries: Freemium registerware

Website| neo4j.com

Neo4j, Inc. is a global graph intelligence company that provides technology for analyzing and managing connected data.[2]

It is most known for creating the Neo4j Graph database, a graph database management system (GDBMS), which is implemented in Java and accessible from software written in other languages using the Cypher query language through a transactional HTTP endpoint, or through the binary "Bolt" protocol.[3][4][5][6]

The company contributed to the development of the Graph Query Language (GQL), an ISO-standardized query language for property graphs, and is a founding member of the GraphQL Foundation, an open-source initiative under the Linux Foundation.[7][8]

## Contents

* 1 History
* 2 Funding
* 3 Product launches and release history
* 4 Partnerships
* 5 Licensing and editions
* 6 Data structure
* 7 Criticisms
* 8 See also
* 9 References
* 10 External links

## History

Neo4j is developed by Neo4j, Inc., headquartered in San Mateo, California, United States, with locations in Sweden, Germany, the United Kingdom, France, Singapore, and Australia.

The company was founded in 2007 in Sweden as an open source project by Emil Eifrem, Johan Svensson, and Peter Neubauer, but the idea for the company dates back to a drawing Eifrem sketched on the back of his napkin during a flight in 2000.[9][2][10]

Neo4j was developed as an alternative to traditional tabular databases for use cases in which data relationships are central to the structure and querying of information.[11]

The name combines "Neo," meaning "new," with "4j," a naming convention in the Java community meaning "for Java."[12][13]

In 2011, the company relocated to Silicon Valley, while its engineering hub remained in Sweden.[2][10]

In 2016, the Neo4j graph database was used in the analysis of the Panama Papers, a data leak that exposed how wealthy individuals and organizations used offshore financial structures to manage and conceal assets.[14][15]

In 2017, NASA acknowledged Neo4j’s contribution to Project Orion for its use in retrieving missing data from the Apollo program.[16]

During the COVID-19 pandemic, Neo4j supported vaccine product development.[17]

## Funding

Neo4j raised $10.6 million in Series A Funding led by Fidelity Growth Partners Europe in 2011.[18] In November 2012, the company raised $11 million in Series B Funding led by Sunstone Capital.[19] In January 2015, Neo4j secured $20 million in Series C Funding led by Creandum and Dawn Capital.[20]

In November 2016, Neo4j secured $36 million in Series D Funding led by Greenbridge Partners Ltd.[21] In November 2018, Neo4j secured $80 million in Series E Funding led by One Peak Partners and Morgan Stanley Expansion Capital, with participation from other investors including Creandum, Eight Roads and Greenbridge Partners.[22] In June 2021, Neo4j announced $325 million in Series F funding, led by Eurazeo and GV (Alphabet’s venture capital arm), which valued the company at over $2 billion making the company one of the best funded database companies.[23][24]

In late 2024, the company began preparations for an initial public offering (IPO) on the Nasdaq stock exchange.[25]

By early 2025, the company announced it had surpassed $200 million in Annual Recurring Revenue (ARR).[26] In 2026, the company continues to maintain its position as the most widely deployed graph database, according to industry rankings, while remaining IPO-ready as market conditions for tech listings stabilize.[27]

## Product launches and release history

Neo4j released version 1.0 of its graph database in 2010, version 2.0 in 2013, version 3.0 in 2016, version 3.5 in 2018, aimed at AI and machine learning, and version 4.0 in 2020 with unlimited scaling, partitioning, also known as ‘sharding,’ and role-based access.[28][29][30][31] In 2022, version 5.0 of its graph database was released.[32]

Neo4j launched Ops Manager, a tool to monitor and manage global deployments in a unified dashboard in 2022, and vector search to its graph database in 2023, expanding contextual search for generative AI and large language models.[33][34]

In 2025, the company launched agentic AI enterprise offerings; Neo4j Aura Agent lets companies build, test, and deploy AI agents using their enterprise data, providing end-to-end automated orchestration and AIOps for graph-based knowledge retrieval.[35] Neo4j also launched Aura Graph Analytics for cloud data warehouses and data lake platforms, including Oracle, Microsoft SQL and OneLake, Databricks, Snowflake, and Google BigQuery.[36]

Recently, Neo4j introduced Infinigraph, a scalable graph database architecture designed for operational, analytical and AI workloads at over 100 terabytes and billions of nodes.[37][38]

Release history  Release  | First release[39] | Latest minor version[40] | Latest release[40] | End of
Support Date[39]

|
|
|
|

1.0  | 2010-02-23  | 1.0  | N/A  | 2011-08-23
1.1  | 2010-07-30  | 1.1  | N/A  | 2012-01-30
1.2  | 2010-12-29  | 1.2  | N/A  | 2012-06-29
1.3  | 2011-04-12  | 1.3  | N/A  | 2012-09-12
1.4  | 2011-07-08  | 1.4  | N/A  | 2013-01-08
1.5  | 2011-11-09  | 1.5  | N/A  | 2013-03-09
1.6  | 2012-01-22  | 1.6  | N/A  | 2013-07-22
1.7  | 2012-04-18  | 1.7  | N/A  | 2013-10-18
1.8  | 2012-09-28  | 1.8  | N/A  | 2014-03-28
1.9  | 2013-05-21  | 1.9.9  | 2014-10-13  | 2014-11-21
2.0  | 2013-12-11  | 2.0.4  | 2014-07-08  | 2015-06-11
2.1  | 2014-05-29  | 2.1.8  | 2015-04-01  | 2015-11-29
2.2  | 2015-03-25  | 2.2.10  | 2016-06-16  | 2016-09-25
2.3  | 2015-10-21  | 2.3.12  | 2017-12-12  | 2017-04-21
3.0  | 2016-04-16  | 3.0.12  | 2017-10-03  | 2017-10-31
3.1  | 2016-12-13  | 3.1.9  | 2018-06-05  | 2018-06-13
3.2  | 2017-05-11  | 3.2.14  | 2019-02-26  | 2018-11-31
3.3  | 2017-10-24  | 3.3.9  | 2018-11-02  | 2019-04-28
3.4  | 2018-05-17  | 3.4.17  | 2019-11-19  | 2020-03-31
3.5  | 2018-11-29  | 3.5.35  | 2022-08-11  | 2022-05-27
4.0  | 2020-01-15  | 4.0.12  | 2021-07-06  | 2021-07-14
4.1  | 2020-06-23  | 4.1.12  | 2022-08-11  | 2021-12-22
4.2  | 2020-11-17  | 4.2.19  | 2022-08-11  | 2022-05-16
4.3  | 2021-06-17  | 4.3.23  | 2022-12-21  | 2022-12-16
4.4  | 2021-12-02  | 4.4.48  | 2026-02-06  | 2025-11-30
5.0  | 2022-10-06  | 5.0  | N/A  | 2022-10-24
5.1  | 2022-10-24  | 5.1  | N/A  | Release of 5.2
5.2  | 2022-11-21  | 5.2  | N/A  | Release of 5.3
5.3  | 2022-12-15  | 5.3  | N/A  | Release of 5.4
5.4  | 2023-01-26  | 5.4  | N/A  | Release of 5.5
5.5  | 2023-02-16  | 5.5  | N/A  | Release of 5.6
5.6  | 2023-03-24  | 5.6  | N/A  | Release of 5.7
5.7  | 2023-04-20  | 5.7  | N/A  | Release of 5.8
5.8  | 2023-05-16  | 5.8  | N/A  | Release of 5.9
5.9  | 2023-06-15  | 5.9  | N/A  | Release of 5.10
5.10  | 2023-07-19  | 5.10  | N/A  | Release of 5.11
5.11  | 2023-08-15  | 5.11  | N/A  | Release of 5.12
5.12  | 2023-09-14  | 5.12  | N/A  | Release of 5.13
5.13  | 2023-10-23  | 5.13  | N/A  | Release of 5.14
5.14  | 2023-11-24  | 5.14  | N/A  | Release of 5.15
5.15  | 2023-12-15  | 5.15  | N/A  | Release of 5.16
5.16  | 2024-01-22  | 5.16  | N/A  | Release of 5.17
5.17  | 2024-02-23  | 5.17  | N/A  | Release of 5.18
5.18  | 2024-03-13  | 5.18.1  | 2024-03-18  | Release of 5.19
5.19  | 2024-04-12  | 5.19  | N/A  | Release of 5.20
5.20  | 2024-05-23  | 5.20  | N/A  | Release of 5.21
5.21  | 2024-06-28  | 5.21.2  | 2024-07-09  | Release of 5.22
5.22.0  | 2024-07-25  | 5.22.0  | N/A  | Release of 5.23
5.23  | 2024-08-22  | 5.23  | N/A  | Release of 5.24
5.24  | 2024-09-27  | 5.24.2  | 2024-10-15  | Release of 5.25
5.25.1  | 2024-10-31  | 5.25.1  | N/A  | Release of 5.26
5.26 (LTS)  | 2024-12-09  | 5.26.26  | 2026-05-12  | 2028-06-06
2025.01  | 2025-02-06  | 2025.01.0  | N/A  | Release of 2025.02
2025.02  | 2025-02-27  | 2025.02.0  | N/A  | Release of 2025.03
2025.03  | 2025-03-27  | 2025.03.0  | N/A  | Release of 2025.04
2025.04  | 2025-04-30  | 2025.04  | N/A  | Release of 2025.05
2025.05  | 2025-06-03  | 2025.05  | N/A  | Release of 2025.06
2025.06  | 2025-07-02  | 2025.06.2  | 2025-07-14  | Release of 2025.07
2025.07  | 2025-07-31  | 2025.07.1  | 2025-08-05  | Release of 2025.08
2025.08  | 2025-08-27  | 2025.08.0  | N/A  | Release of 2025.09
2025.09  | 2025-09-29  | 2025.09.0  | N/A  | Release of 2025.10
2025.10  | 2025-10-30  | 2025.10.1  | 2025-10-30  | Release of 2025.11
2025.11  | 2025-12-19  | 2025.11.2  | N/A  | Release of 2025.12
2025.12  | 2026-01-16  | 2025.12.1  | N/A  | Release of 2026.01
2026.01  | 2026-02-04  | 2026.01.4  | 2026-02-10  | Release of 2026.02
2026.02  | 2026-03-06  | 2026.02.3  | 2026-03-20  | Release of 2026.03
2026.03  | 2026-04-02  | 2026.03.1  | N/A  | Release of 2026.04
2026.04  | 2026-04-23  | 2026.04.0  | N/A  | Release of 2026.05
2026.05  | 2026-05-28  | 2026.05.0  | N/A  | Release of 2026.06

{{{2}}}

## Partnerships

In March 2024, Neo4j and Microsoft announced a collaboration to integrate graph database capabilities into Azure AI services, including Fabric and Azure OpenAI. The integration lets users build knowledge graphs, supporting AI use cases such as GraphRAG.[41]

In June 2024, Neo4j integrated with Snowflake to enable graph analytics and machine learning directly within the Snowflake AI Data Cloud, allowing users access to 65 graph algorithms using SQL.[42][43]

## Licensing and editions

Neo4j has multiple editions for both its self-managed and fully managed offerings.

As an ACID-compliant transactional database with native graph storage and processing,[44] Neo4j graph database is available in three editions: Community Edition, Enterprise Edition, and Infinigraph Edition. Community Edition is free and open source software under the GNU General Public License version 3 (GPLv3).[45]

The Enterprise and Infinigraph Editions are distributed under a closed-source commercial license and includes additional features related to scalability, performance, operability, and security.[46][47]

The previous licensing of Enterprise Edition was dual-licensed: GPL v3 (with parts of the code under AGPLv3 with Commons Clause), allowing for clustering, hot backups, and monitoring.

Neo4j AuraDB is available in four tiers: Free, Professional, Business Critical, and Virtual Dedicated Cloud.[45]

## Data structure

The data elements Neo4j stores in its graph database are nodes, edges which connect nodes to one another, and attributes of nodes and edges. Nodes and edges can be labelled. Labels can be used to narrow searches. As of version 2.0, indexing was added to Cypher with the introduction of schemas.[48] Previously, indexes were supported separately from Cypher.[49]

## Criticisms

Database researcher Andy Pavlo from Carnegie Mellon University has questioned graph databases' decision to abandon the longstanding relational model in favor of a custom model.[50] Researchers from CWI benchmarked a modified version of DuckDB against Neo4j on graph-related workloads and found that, despite being an extension of a relational database running SQL, their implementation outperforms Neo4j in a few specific tasks.[51]

Neo4j sued PureThink, for utilizing a power created under the terms of the GNU AGPL, to remove a restrictive Commons clause that Neo4j had added to the AGPL license.[52][53] The United States District Court for the Northern District of California made a decision on 2024-07-22 to impose $597,000 in actual damages on PureThink, having previously decided that PureThink had violated the DMCA by removing the Commons Clause from Neo4j's AGPL license, and that it had violated trademark law by continuing to use the name Neo4j in selling to government agencies.[54]

## See also

* ISO-GQL
* Cypher (query language)

## References

1. ↑ Neubauer, Peter [@peterneubauer] (17 Feb 2010). "@sarkkine #Neo4j was developed as part of a CMS SaaS 2000-2007, became released OSS 2007 when Neo Technology spun out.". https://twitter.com/peterneubauer/status/9248821667.
2. ↑ 2.0 2.1 2.2 Wiggers, Kyle (2024-11-19). "Database startup Neo4j embraces AI to supercharge growth" (in en-US). https://techcrunch.com/2024/11/19/database-startup-neo4j-embraces-ai-to-supercharge-growth/.
3. ↑ "Bolt Protocol". http://boltprotocol.org/.
4. ↑ Todd Hoff (June 13, 2009). "Neo4j - a Graph Database that Kicks Buttox". High Scalability. Possibility Outpost. http://highscalability.com/neo4j-graph-database-kicks-buttox.
5. ↑ Gavin Terrill (June 5, 2008). "Neo4j - an Embedded, Network Database". InfoQ. C4Media Inc. http://www.infoq.com/news/2008/06/neo4j.
6. ↑ "5.1. Transactional Cypher HTTP endpoint". http://neo4j.com/docs/developer-manual/current/http-api/#http-api-transactional.
7. ↑ "ISO/IEC 39075:2024" (in en). https://www.iso.org/standard/76120.html.
8. ↑ "GraphQL Foundation, JDF Join Forces to Advance Open Standards" (in en-US). 2019-03-15. https://www.opensourceforu.com/2019/03/graphql-foundation-jdf-join-forces-to-drive-open-source-and-open-standards/.
9. ↑ Miller, Ron (2018-09-20). "AI could help push Neo4j graph database growth | TechCrunch" (in en-US). TechCrunch. https://techcrunch.com/2018/09/20/ai-could-help-push-neo4j-graph-database-growth/.
10. ↑ 10.0 10.1 ""Something much broader than compensation drives us."—Emil Eifrem, Neo4j Founder — Interview | HackerNoon" (in en). https://hackernoon.com/something-much-broader-than-compensation-drives-us-emil-eifrem-neo4j-founder-interview-168278957077.
11. ↑ "Neo4j - an overview | ScienceDirect Topics". https://www.sciencedirect.com/topics/computer-science/neo4j.
12. ↑ Dr. Jim Webber (June 8, 2020). "A Personal History of Neo4j". Neo4j. YouTube. https://www.youtube.com/watch?v=YB723cp9jgM.
13. ↑ "Emil Eifrem's Vision for Neo4j Leadership - Most Loved Workplace®" (in en-US). https://mostlovedworkplace.com/podcast/transforming-tech-leadership-emil-eifrems-vision-for-neo4j/.
14. ↑ "How ICIJ deals with massive data leaks like the Panama Papers and Paradise Papers - ICIJ" (in en-US). 2018-07-03. https://www.icij.org/inside-icij/2018/07/how-icij-deals-with-massive-data-leaks-like-the-panama-papers-and-paradise-papers/.
15. ↑ Srivastava, Sakshi; Singh, Anil Kumar (2018-12-22). "Graph Based Analysis of Panama Papers". 2018 Fifth International Conference on Parallel, Distributed and Grid Computing (PDGC). pp. 822–827. doi:10.1109/PDGC.2018.8745785. ISBN 978-1-7281-0646-5.
16. ↑ "Neo4j and NASA: When graph database technology really is rocket science" (in en). https://www.zdnet.com/article/neo4j-and-nasa-where-graph-databases-technology-really-is-rocket-science/.
17. ↑ Simms, Andrew M.; Kanakia, Anshul; Sipra, Muhammad; Dutta, Bhaskar; Southall, Noel (2024-01-04). "A patient safety knowledge graph supporting vaccine product development" (in en). BMC Medical Informatics and Decision Making 24 (1): 10. doi:10.1186/s12911-023-02409-8. ISSN 1472-6947. PMID 38178113.
18. ↑ Rao, Leena (2011-09-21). "NoSQL Database Company Neo Technology Raises $10.6 Million" (in en-US). https://techcrunch.com/2011/09/20/nosql-database-company-neo-technology-raises-10-6-million/.
19. ↑ Finley, Klint (2012-11-02). "Graph Database Company Neo Technology Raises $11 Million Series B" (in en-US). https://techcrunch.com/2012/11/02/graph-database-company-neo-technology-raises-11-million-series-b/.
20. ↑ Miller, Ron (2015-01-15). "Neo Technology Bags $20M As Graph Databases Get Hot" (in en-US). https://techcrunch.com/2015/01/15/neo-technology-bags-20m-as-graph-databases-gets-hot/.
21. ↑ "Neo Technology closes $36 million in funding as graph database adoption soars" (in en-us). SiliconANGLE. http://siliconangle.com/blog/2016/11/10/neo-technology-closes-36-million-in-funding-as-graph-database-adoption-soars/.
22. ↑ "Graph database platform Neo4j locks in $80 mln Series E" (in en-us). PE Hub Wire. https://www.pehub.com/2018/11/graph-database-platform-neo4j-locks-in-80-mln-series-e/#.
23. ↑ "The biggest investment in database history, the biggest social network ever, and other graph stories from Neo4j" (in en). https://www.zdnet.com/article/the-biggest-investment-in-database-history-the-biggest-social-network-ever-and-other-graph-stories-from-neo4j/.
24. ↑ Crichton, Danny (2021-06-17). "Neo4j raises $325M as graph-based data analysis takes hold in enterprise" (in en-US). https://techcrunch.com/2021/06/17/neo4j-series-f/.
25. ↑ "Payment Firm Neo4j Follows Klarna Path and Readies for US Listing" (in en). Bloomberg.com. https://www.bloomberg.com/news/articles/2024-11-19/unicorn-neo4j-follows-klarna-path-and-readies-for-us-listing.
26. ↑ Watson, Melania. "Neo4j surpasses USD $200m ARR, eyes further AI growth" (in en). https://itbrief.com.au/story/neo4j-surpasses-usd-200m-arr-eyes-further-ai-growth.
27. ↑ "DB-Engines Ranking" (in en). https://db-engines.com/en/ranking/graph+dbms.
28. ↑ "In a bid to make graph databases more accessible, Neo4j gets a revamp" (in en-US). 2017-10-24. https://siliconangle.com/2017/10/24/neo4j-revamped-bid-make-graph-databases-accessible/.
29. ↑ "Neo4j 2.0 A Dream Graph Database". https://www.i-programmer.info/news/84-database/6712-neo4j-20-a-dream-graph-database.html.
30. ↑ Woodie, Alex (April 26, 2016). "Neo4j Pushes Graph DB Limits Past a Quadrillion Nodes". https://www.hpcwire.com/bigdatawire/2016/04/26/neo4j-pushes-graph-db-limits-past-quadrillion-nodes/.
31. ↑ Miller, Ron (2020-02-04). "Neo4j 4.0 graph database platform brings unlimited scaling" (in en-US). https://techcrunch.com/2020/02/04/neo4j-4-0-graph-database-platform-brings-unlimited-scaling/.
32. ↑ "Neo4j boasts of speed and scalability improvements in new version of its graph database" (in en-US). 2022-11-09. https://siliconangle.com/2022/11/09/neo4j-boasts-speed-scalability-improvements-new-version-graph-database/.
33. ↑ Russell, John (2022-11-11). "Neo4j Releases the Next Generation of Its Graph Database" (in en-US). https://www.hpcwire.com/bigdatawire/2022/11/10/neo4j-releases-the-next-generation-of-its-graph-database/.
34. ↑ Kerner, Sean Michael (2023-08-22). "Neo4j brings vectors to graph database". https://venturebeat.com/ai/neo4j-brings-vectors-to-graph-database.
35. ↑ "Neo4j Invests $100M in GenAI, Launches New Agentic AI Offerings" (in en-US). https://vmblog.com/news/neo4j-invests-100m-in-genai-launches-new-agentic-ai-offerings/.
36. ↑ "Neo4j goes serverless, bringing graph analytics to any data source" (in en-US). 2025-05-07. https://siliconangle.com/2025/05/07/neo4j-goes-serverless-bringing-graph-analytics-data-source/.
37. ↑ "Neo4j unifies real-time transactions and graph analytics at scale" (in en-US). 2025-09-04. https://siliconangle.com/2025/09/04/neo4j-unifies-real-time-transactions-graph-analytics-scale/.
38. ↑ SiliconANGLE theCUBE (2025-09-04). Sudhir Hasbe, Neo4j | theCUBE + NYSE Wired: Mixture of Experts. Retrieved 2026-05-19 - via YouTube.
39. ↑ 39.0 39.1 "Neo4j Supported Versions" (in en). https://neo4j.com/developer/kb/neo4j-supported-versions/.
40. ↑ 40.0 40.1 "Release Notes Archive" (in en). https://neo4j.com/release-notes/.
41. ↑ "Neo4j, Microsoft add graph features to Azure AI services" (in en-US). 2024-03-26. https://siliconangle.com/2024/03/26/neo4j-microsoft-add-graph-features-azure-ai-services/.
42. ↑ Savvas, Antony (2024-06-07). "Neo4j graph analytics integrated with Snowflake’s AI cloud" (in en-US). https://www.blocksandfiles.com/ai-ml/2024/06/07/neo4j-graph-analytics-integrated-with-snowflakes-ai-cloud/1617004.
43. ↑ "Neo4j integrates dozens of graph analytics functions with data in Snowflake" (in en-US). 2024-06-04. https://siliconangle.com/2024/06/04/neo4j-integrates-dozens-graph-analytics-functions-data-snowflake/.
44. ↑ Neo Technology. "Neo4j Graph Database". http://neo4j.com/product/.
45. ↑ 45.0 45.1 neo4j/neo4j, Neo4j, 2026-05-26, https://github.com/neo4j/neo4j, retrieved 2026-05-26
46. ↑ Philip Rathle (November 15, 2018). "Simplicity Wins: We're Shifting to an Open Core Licensing Model for Neo4j Enterprise Edition". https://neo4j.com/blog/open-core-licensing-model-neo4j-enterprise-edition/.
47. ↑ Emil Eifrem (April 13, 2011). "Graph Databases, Licensing and MySQL". http://blogs.neotechnology.com/emil/2011/04/graph-databases-licensing-and-mysql.html.
48. ↑ "The Neo4j Manual v2.1.5". http://neo4j.com/docs/2.1.5/query-schema-index.html.
49. ↑ "The Neo4j Manual v1.8.3". http://neo4j.com/docs/1.8.3/indexing.html.
50. ↑ Pavlo, Andy (2023-03-08). "Abandoning relational DB model like 'reinventing the wheel'". https://www.theregister.com/2023/03/08/great_graph_debate_wednesday/.
51. ↑ D.L.J, Daniël; Singh, Tavneet; Szárnyas, Gábor; Boncz, Peter (2023-01-08). DuckPGQ: Efficient property graph queries in an analytical RDBMS. https://ir.cwi.nl/pub/32773. Retrieved 2024-02-21.
52. ↑ Kuhn, Bradley M. (March 30, 2022). "An Erroneous Preliminary Injunction Granted in Neo4j v. PureThink". https://sfconservancy.org/blog/2022/mar/30/neo4j-v-purethink-open-source-affero-gpl/.
53. ↑ "SFC's Policy Fellow Files Expert Report in Neo4j v. PureThink; Case about the "further restrictions" removal provision of the AGPLv3 continues after counterclaim filing". February 9, 2023. https://sfconservancy.org/news/2023/feb/09/kuhn-neo4j-purethink-expert-report/.
54. ↑ "NEO4J, INC., et al., Plaintiffs, v. PURETHINK, LLC, et al., Defendants.: Findings of Fact and Conclusions of Law". 2024-07-22. https://storage.courtlistener.com/recap/gov.uscourts.cand.335295/gov.uscourts.cand.335295.248.0_26.pdf.

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