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Arum DataEye Success
"db4o reduced time and cost of developing Arum DataEye by approximately 30% in comparison to using a traditional RDBMS and ORM, while remaining flexible and scalable."
– Christopher Brind
RSSOwl News Reader Success
"Kudos to the db4o team. We were really happy to find out that open source projects can integrate with db4o without extra cost"
– Benjamin Pasero
INDRA Sistemas Success
"We chose db4o as the core of our Real-time Data Base. db4o's speed allows the system
to process over 200,000 objects per second"
– Jose Miguel Rubio Sanchez
Success Story | PDF
"I would definitely endorse db4o's use due to its performance, both in terms of memory overhead and transactional latency; its scalability in terms of how many items you can put in the database; and its solid reliability"
– Bret Savage
BOSCH Sigpack Success
"Our biggest concern is shortening our commissioning time. The use of db4o on our
data-backend has helped us to achieve a time-saving effect of at least 10% on each
– Sebastian Hubrich
Press and Analysts' Voices
"A database 'Swiss Army knife' … Our concluding suggestion is simply this: when your next
Java application needs a database, pay a visit to www.db4o.com before you begin final
coding. The visit will be worth it."
Open source object database licenses, development and support
Versant sponsors the development, commercial licenses and support of db4o, the
open source object database. db4o helps innovators around the globe to build their
next generation of data-rich, 'smart' products.
Driven by the world's largest developer
community of its kind, with 100,000 registered Java and .NET developers and
counting, db4o offers the ultimate persistence solution to store objects of any
complexity natively, with only one line of code. Development managers at some of
the most innovative companies including Boeing, Bosch,
Seagate rely on db4o to bring differentiated products to market which propel them ahead of their competition.
The db4o database engine is available under two licenses: the open source, GPL license,
which enables easy download, evaluation, and use in GPL compliant projects; and
a commercial runtime license to embed and distribute db4o with commercial, non-GPL
In addition, Versant offers professional support and to its commercial customers with
the exclusive dDN Enterprise package, and partners with innovators around
the globe to build competitive industry
solutions according to specifications.
It is Versant's mission to give developers a choice when it comes to object persistence
and thus make their life a lot easier. To make db4o broadly available, Versant
leverages the benefits of a world connected through the Internet to create a culture
that is agile and collaborative, open and global -- unlike few other software companies.
We invite you to learn more about our company,
our flagship db4o product,
our customers' success - or simply
invite you to download db4o for
free under the GPL license and test for yourself.
are available for your review and are especially benefical for individuals who are
new to embeddable object database technology and seek criteria for evaluating OO