Fusion-io, Inc. was a computer hardware and software systems company (acquired by SanDisk Corporation in 2014) based in Cottonwood Heights, Utah, that designed and manufactured products using flash memory technology.

The Fusion ioMemory was marketed for applications such as databases, virtualization, cloud computing, big data.

[6] In March 2008, Fusion-io raised $19 million in a series A round of funding from a group of investors led by New Enterprise Associates.

[11] Fusion-io announced $47.5 million in a series B round of investment led by Lightspeed Venture Partners in April 2009.

[17] Fusion-io first filed for an initial public offering (IPO) in March 2011, with shares to be listed on the New York Stock Exchange with symbol FIO.

In June 2011, Fusion-io announced it increased the price of its IPO to put the company's total value at $1.4 billion.

[20] IO Turbine's main product was the ioTurbine hybrid array (caching to flash) software, which is virtualization-aware, particularly of VMware environments.

[21][22] In January 2012, Fusion-io achieved a record breaking billion IOPS from eight servers at the DEMO Enterprise event in San Francisco.

[26] In March 2013, Fusion-io acquired the Linux software defined storage firm ID7, developers of the SCST generic SCSI target layer.

[29][30] NexGen was located in Louisville, Colorado and had a product it called n5, which it announced in November 2011 and upgraded in July 2012.

This new block layer uses parallelism (and thus provides much higher performance) offered by SSDs using NVM Express.