About Event Store

Event Store Ltd is a company that develops EventStoreDB, a stream database built for Event Sourcing, and offers consultancy and support services worldwide for businesses looking to implement Event Sourcing within their systems architecture.

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  • 2012

    Greg Young releases Event Store (now called EventStoreDB)

    • Open-source database for Event Sourcing
    • Commercial Support
  • 2013

    Event Store v2.0.0 released

    • Added authentication and security
    • Support for environment variables and config files
    • Better AtomPub compliance
  • 2014

    Event Store v3.0.0 released

    • Support for high availability clustering
    • Added in-memory and embedded modes
    • New admin user-interface (UI)
  • 2017

    Event Store v4.0.0 released

    • Projections improved and now a supported feature
    • Custom Javascript projections now support ECMASCRIPT 6 & 7
    • Direct IO now supported in the transaction engine
  • 2019

    Event Store v5.0.0 released

    • Increased server stability
    • Performance optimizations to projections
    • Significantly improved write/read speeds and idle CPU usage on Linux

    Team growth

    • Leadership team formed
    • Development and support teams expanded
  • 2020

    EventStoreDB 20.6 released

    • Changed name to EventStoreDB
    • Move to .NET Core
    • New gRPC clients for Java, C#, Node, Go, and Rust
    • Added support for server-side filtering

    Investment and expansion

    • Hiring of back office teams
    • Continued expansion of development and support teams

Our story

EventStoreDB was first developed back in 2011 by Greg Young, a pioneer of CQRS and Event Sourcing. This was done in a joint effort with BathASU, a pharmaceutical compounding company based in Bath, UK. At the time BathASU had a strong business case for adopting Event Sourcing and hired Greg to help them build a new system. Rather than build “yet another event store”, as Greg had done on many previous occasions, an open-source project was started and the resulting Event Store database was made available in 2012.

Due to demand, Event Store began offering a commercial support option and slowly grew a strong customer base of organizations such as Walmart/Jet.com, Xero Accounting Systems, UK NHS (National Health Service), checkout.com, and CERN. Since that time, EventStoreDB has been deployed in thousands of production clusters, running mission-critical, high value, web-scale workloads around the world.

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  • Products & services

    Event Store develops the open-source Event Sourcing database, EventStoreDB, and provides a range of commercial products and services that are ideal for businesses looking to build event-sourced systems.

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  • Press room

    In our press room, you can find press releases, a media kit, and the press contact from Event Store Ltd, the company behind EventStoreDB, the leading solution for event persistence within event-sourced applications.

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  • Careers

    We're always on the lookout for talented individuals to come and work for Event Store. Apply for one of our current vacancies or send us your CV to be considered for future roles.

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  • Ouro

    Chief Morale Officer

  • Dave Remy


  • Daniel Warren

    VP of Sales & Marketing

  • Greg Young


  • James Geall

    VP of Engineering

  • Chris Condron

    Technical Fellow

  • Mat McLoughlin

    Head of Product

  • Zachary Schneider

    Head of Cloud

  • Hayley Campbell


  • Avish Cheetaram

    Developer & Support

  • Shaan Nobee

    Developer & Support

  • Lokhesh Ujhoodha

    Support Manager & Developer

  • Arwin Neil Baichoo


  • João Bragança


  • Dan Crosby

    Digital Marketing Manager

  • Helen Fullerton

    HR & Operations Manager

  • Yorick Laupa


  • Max Pouncy


  • Alexey Zimarev

    Developer Advocate

  • Margaret Elliot

    Customer Success Manager

  • Rebecca Garland

    Sales Coordinator

  • Stephanie Gill

    Content Manager

  • Kyran Wastnage

    BI/Finance Management Trainee

  • George Payne

    Front End Developer

  • Dan Leech

    Product Designer

  • Jon Bradford


  • Rich Knight