# Fusion I/O

> Fusion-io pioneered PCIe flash storage for data centers (customers included Facebook and Apple) before its 2011 NYSE IPO and 2014 SanDisk acquisition.

## Why it is interesting

Steve Wozniak as chief scientist helped sell flash-at-the-server to hyperscalers — the company defined the early PCIe SSD category before storage incumbents caught up.

## Profile

- **Stage:** acquired
- **Status:** acquired
- **Industries:** generalist-tech
- **Coverage:** full
- **Last updated:** 2026-07-24

## Key facts

- Series C (Apr 2010): $45M led by Meritech; NEA, Lightspeed, a16z participated (TechCrunch)
- IPO (Jun 2011): NYSE: FIO at $19/share
- Exit (2014): Acquired by SanDisk

## Investors in our directory

- https://venturecapitaltracker.com/fund/andreessen-horowitz
- https://venturecapitaltracker.com/fund/new-enterprise-associates
- https://venturecapitaltracker.com/fund/lightspeed-venture-partners-nyc
- https://venturecapitaltracker.com/fund/norwest-venture-partners

## Related articles

- https://venturecapitaltracker.com/2026-a16z-hot-portfolio-companies

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Source: https://venturecapitaltracker.com/startup/fusion-i-o