Top 5 NAND Flash Memory Manufacturers in the World as of 2025

Who Are: The Top 5 NAND Flash Memory Manufacturers in the World as of 2025

First off, it’s important to know that NAND flash memory powers everything from smartphones and laptops to massive data centers and cloud storage systems. In 2025, just five companies control over 90% of the global NAND market which is a testament to the complexity, capital, and innovation needed to produce these essential chips.

In the order of global market share, let us take a closer look at the top five NAND manufacturers and with a quick dive into their company history.

At #1 we have Samsung Electronics (South Korea) with a 31% Market Share

Samsung has been the undisputed king of NAND flash for over a decade and the set the standard for quality. With cutting-edge V-NAND (Vertical NAND) architecture and some of the most advanced semiconductor fabs in the world, Samsung is still the leader of performance and capacity.

Samsung at a glance

Founded in 1938 as a trading company, Samsung entered the electronics industry in the late 1960s. By the 1980s, it was investing heavily in semiconductors, laying the groundwork for its current dominance.

At #2 we have SK hynix (also South Korea ) with a 18% Market Share

SK hynix is a newer name in the industry but rapidly grew in the NAND space, especially after acquiring Intel’s NAND business in 2021. SK hynix created the “Solidigm” business division to represent the enterprise and data center SSD business sector.

SK hynix at a glance

Originally part of Hyundai Group, SK hynix started in 1983 and grew into a major DRAM producer. Its NAND growth was supercharged by Intel’s exit, and their purchase of it, making Hynix a global heavyweight almost overnight. Money does talk!

Coming in at #3 Kioxia (Japan) which has a 17% Market Share

Kioxia is better known as Toshiba Memory from before the change in 2019. Kioxia is credited with inventing NAND flash in the 1980s but unfortunately has not been able to capture the “high quality” component which Samsung has achieved. Toshiba…we mean, Kioxia continues to lead innovation with joint manufacturing ventures alongside Western Digital in Japan.

About Kioxia

Toshiba, founded in 1875, spun off its memory division in 2017, which was renamed Kioxia in 2019. Despite the name change, it maintains deep roots in flash memory innovation.

In a solid #4 spot Western Digital (USA) captures 15% of Market Share

Western Digital may be best known for its hard drives, but its SanDisk acquisition in 2016 catapulted it into the NAND flash big leagues. In partnership with Kioxia, WD continues to produce high-quality NAND for consumer and enterprise use.

About Western Digital

Founded in 1970, Western Digital began as a calculator chip maker before pivoting to storage. It evolved with the market, transitioning from hard drives to solid state drives (SSDs) with strategic acquisitions like SanDisk. Western Digital is based out of San Jose California

Rounding things out, #5 Micron Technology (USA)with an 11% Market Share

Micron is the only U.S. based memory manufacturer with strong capabilities in both DRAM and NAND. Micron has made big strides in 3D NAND technology and offering competitive solutions for PCs, smartphones, and data centers. Micron has earned a strong reputation for high quality memory equal to the “leader” of Samsung.

About Micron

Micron was founded in 1978 in Boise, Idaho. It began as a DRAM producer and expanded into NAND flash in the early 2000s, later forming (and eventually dissolving) a joint venture with Intel.

In 2025, the global NAND flash memory market is highly consolidated, with just five companies controlling roughly 92% of total output. Whether you’re saving selfies on your phone or storing enterprise data in the cloud, chances are your information is riding on memory made by one of these giants.

The estimates for this market will reach $117 billion by 2030. This is a signal that NAND flash memory will continue to be a key roll in technology products and mostly driven by increased demand for smartphones, solid-state drives (SSDs), and data center storage solutions.