MySQL AB

MySQL AB was a Swedish software company established in 1995 by David Axmark, Allan Larsson, and Michael Widenius. Its principal creation was MySQL, an open-source relational database management system that became a foundational component of web hosting, online publishing, enterprise applications, and the software stack commonly described as LAMP: Linux, Apache, MySQL, and PHP or Perl. The company’s importance came not only from the technical adoption of its database, but also from its attempt to build a sustainable commercial model around open-source software. MySQL originated from work by Widenius and colleagues on a lightweight database system and was released publicly in the mid-1990s. It emphasized speed, ease of use, broad platform support, and relatively low operating cost. Those characteristics helped it gain traction among web developers, hosting providers, small businesses, and later larger organizations. MySQL was distributed under the GNU General Public License while the company also offered commercial licenses, support, consulting, training, certification, and subscription-style enterprise services. This dual-licensing and services model allowed users to adopt the software freely while giving commercial customers access to proprietary terms and professional assistance. During the late 1990s and 2000s, MySQL became one of the most visible open-source database projects. The company expanded its international presence and built a business around the database server, related tools, support programs, and partner distribution. MySQL was particularly influential in internet infrastructure, where it was frequently paired with open-source operating systems, web servers, and programming languages. Its relatively accessible administration model and broad developer ecosystem also made it a common choice for content-management systems, online services, and application development. MySQL AB attracted substantial investment and entered the public markets through an initial public offering on the Stockholm Stock Exchange in 2008. Later that year, Sun Microsystems agreed to acquire the company for approximately US$1 billion. The transaction placed MySQL within Sun’s software portfolio alongside Java and other infrastructure technologies. Sun was itself acquired by Oracle Corporation in 2010, bringing MySQL into Oracle’s database and enterprise-software business. The acquisition ended MySQL AB as an independent company, but not the MySQL product. Oracle continued development and commercial distribution of MySQL, while the open-source project remained available under its established licensing framework. Some former MySQL developers and community members later created or supported alternative projects, including MariaDB, reflecting debates about governance, stewardship, and the future direction of an important open-source database under corporate ownership. MySQL remains a widely recognized database brand, although the original MySQL AB corporate entity is defunct as an independent business.

MySQL AB developed from the database work of Michael Widenius, David Axmark, and Allan Larsson in Sweden. The project was initially associated with a small Swedish software business and was designed to provide a fast, practical relational database for applications that needed an alternative to more expensive proprietary systems. MySQL was released as open-source software in the mid-1990s and gradually attracted a worldwide community of developers, hosting companies, system administrators, and application vendors. The company’s growth coincided with the expansion of the commercial internet. MySQL was frequently deployed with Linux, the Apache web server, and scripting languages such as PHP and Perl. This combination reduced the cost and complexity of building dynamic websites and helped make MySQL a standard component of early web infrastructure. Its technical reputation centered on speed, comparatively simple administration, portability, and suitability for read-intensive web applications. Over time, the product added broader SQL functionality, replication, clustering, improved transactional support, and better enterprise capabilities. MySQL AB pursued an open-source business model rather than relying solely on proprietary software licensing. The server was offered under the GNU General Public License, while commercial customers could obtain alternative licensing arrangements and professional services. The company also sold support, consulting, training, certification, and other services. This model enabled widespread unpaid or low-cost adoption while giving larger customers a route to formal support and commercial deployment. MySQL AB expanded beyond Sweden through international offices, partners, and a global developer ecosystem. In 2008, MySQL AB completed an initial public offering on the Stockholm Stock Exchange. The company’s independent public-company period was brief. Sun Microsystems announced an agreement to acquire MySQL AB in January 2008, and the transaction closed later that year. Sun described MySQL as strategically important to its open-source software portfolio and web-infrastructure strategy. The purchase was widely viewed as a major validation of open-source database software and placed MySQL alongside Sun’s Java, Solaris, and hardware businesses. Oracle’s acquisition of Sun Microsystems was completed in 2010 after regulatory review. As a result, MySQL became part of Oracle’s database portfolio. Oracle continued to develop, license, and support MySQL, but the change in ownership generated discussion about the independence of the project and the treatment of competing database technologies. Michael Widenius and other former MySQL developers promoted MariaDB, a fork intended to preserve compatibility while pursuing independent community and technical governance. MySQL AB no longer operates as an independent company. Its principal legacy is the MySQL database brand and the role it played in making open-source relational database software mainstream. MySQL continues as a maintained Oracle product and open-source project, while the original company is remembered as an important early example of a venture-backed commercial enterprise built around open-source infrastructure software.

1. 2010Oracle acquired Sun Microsystems

   Oracle completed its acquisition of Sun, bringing MySQL into Oracle’s software portfolio.

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2. 2009MariaDB was introduced

   Former MySQL developers began the MariaDB project as a separately governed fork of MySQL.

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3. 2008MySQL AB became publicly traded

   MySQL AB completed an initial public offering in Sweden.

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4. 2008Sun Microsystems acquired MySQL AB

   Sun Microsystems completed its acquisition of MySQL AB in a transaction announced at approximately US$1 billion.

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5. 2001Mårten Mickos became chief executive

   Mårten Mickos led MySQL AB during its major international expansion and commercial growth.

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6. 1995MySQL AB was founded

   David Axmark, Allan Larsson, and Michael Widenius established the Swedish company associated with development and commercialization of MySQL.

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7. 1995MySQL was first released

   The MySQL relational database began public distribution as an open-source database project.

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An open-source, developer-friendly relational database positioned around performance, accessibility, portability, and lower adoption costs, with commercial revenue generated through licensing, support, consulting, training, and enterprise services.

• MySQL DatabaseRelational database management system1995

  MySQL Database was MySQL AB’s principal product and the source of the company’s name. It is an open-source relational database management system used to store, query, and manage structured application data. The product became especially prominent in web applications because of its performance, broad operating-system support, accessible administration, and integration with common programming languages and web platforms. MySQL was distributed under the GNU General Public License, with commercial licensing and professional services available for customers requiring alternative terms or formal support.

• MySQL Enterprise offeringsCommercial database support and services

  MySQL AB’s commercial offering surrounded the database server with support, consulting, training, certification, and enterprise-oriented services. These offerings were intended for organizations that needed assistance with deployment, administration, performance, availability, security, and production support. The model allowed MySQL AB to monetize an open-source core without restricting general community access to the software.

• 2009Former developers pursued an independent MySQL-compatible forkStrategy

  The change in corporate ownership created concerns among some developers about the long-term independence and governance of MySQL.

  What changed. Michael Widenius and other contributors launched and promoted MariaDB as a separately governed, MySQL-compatible database project.

  Aftermath. MariaDB developed into an independent database ecosystem and became an alternative used by some Linux distributions, organizations, and application operators.

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• 2008MySQL AB accepted Sun Microsystems’ acquisition offerM&A

  MySQL AB had become a major open-source database company and had recently entered the public markets. Sun Microsystems sought to strengthen its open-source and web-infrastructure portfolio.

  What changed. MySQL AB agreed to be acquired by Sun Microsystems in a transaction publicly valued at approximately US$1 billion, including assumed options.

  Aftermath. MySQL became part of Sun’s software portfolio and later passed to Oracle when Oracle completed its acquisition of Sun in 2010.

  Announced transaction value. Approximately US$1 billion including assumed options (2008)

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• 2010Oracle completed its acquisition of Sun Microsystems

  Oracle’s acquisition of Sun transferred ownership and stewardship of MySQL to Oracle, ending MySQL AB’s independent corporate existence.

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• 2009MariaDB was launched by former MySQL developers

  Michael Widenius and other contributors initiated MariaDB as a community-developed fork and compatible alternative to MySQL.

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• 2008MySQL AB completed its initial public offering

  MySQL AB became a publicly traded company in Sweden before later being acquired by Sun Microsystems.

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• 2008Sun Microsystems agreed to acquire MySQL AB

  Sun announced an agreement to acquire MySQL AB in a transaction valued at approximately US$1 billion, including assumed options.

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1. MySQL
2. MySQL 8.0 Reference Manual: What Is MySQL?
3. Sun Microsystems to Acquire MySQL
4. Oracle Completes Acquisition of Sun Microsystems
5. MariaDB Documentation
6. Mårten Mickos became chief executive
7. MySQL AB completed its initial public offering