Adaptec was a computer storage company and remains a brand for computer storage products. The company was an independent firm from 1981 to 2010, at which point it was acquired by PMC-Sierra, which itself was later acquired by Microsemi, which itself was later acquired by Microchip Technology.

ADATA Technology Co., Ltd. is a publicly listed (3260:TAI) fabless Taiwanese memory and storage manufacturer, founded in May 2001 by Simon Chen (陳立白). Its main product line consists of DRAM modules, USB Flash drives, hard disk drives, solid state drives, memory cards and mobile accessories. ADATA is also expanding into new areas, including robotics and electric powertrain systems. In addition to its main ADATA brand, the company also sells PC gaming hardware and accessories under its XPG brand.

Broadcom Inc. is an American designer, developer, manufacturer and global supplier of a wide range of semiconductor and infrastructure software products. Broadcom's product offerings serve the data center, networking, software, broadband, wireless, and storage and industrial markets.

Certance was a privately held company engaged in design and manufacture of computer tape drives.

Conner Peripherals was a company that manufactured hard drives for personal computers. Conner Peripherals was founded in 1985 by Seagate Technology co-founder and San Jose State University alumnus Finis Conner. In 1986, they merged with CoData, a Colorado start-up founded by MiniScribe founders Terry Johnson and John Squires. CoData was developing a new type of small hard disk that put the capacity of a 5.25-inch drive into the smaller 3.5-inch format. The CoData drive was the first Conner Peripherals product. The company was partially financed by Compaq, who was also a major customer for many years.

Compellent Technologies, Inc, founded in 2002, was a provider of enterprise computer data storage systems that automate data movement at the block level. The company was headquartered in Eden Prairie, Minnesota, USA. Compellent's chief product, Storage Center, is a storage area network (SAN) system that combines a standards-based hardware platform and a suite of virtualized storage management applications, including automated tiered storage, thin provisioning and replication. The company developed software and products aimed at mid-size enterprises and sold through a channel network of independent providers and resellers. It became part of Dell in February 2011.

Conner Peripherals was a company that manufactured hard drives for personal computers. Conner Peripherals was founded in 1985 by Seagate Technology co-founder and San Jose State University alumnus Finis Conner. In 1986, they merged with CoData, a Colorado start-up founded by MiniScribe founders Terry Johnson and John Squires. CoData was developing a new type of small hard disk that put the capacity of a 5.25-inch drive into the smaller 3.5-inch format. The CoData drive was the first Conner Peripherals product. The company was partially financed by Compaq, who was also a major customer for many years.

Datalight is a privately held software company specializing in power failsafe and high performance software for preserving data integrity in embedded systems. The company was founded in 1983 by Roy Sherrill, and is headquartered in Bothell, Washington. As of 2019 the company is a subsidiary of Tuxera.

Dataram is a manufacturer of computer memory and software products headquartered in Princeton, New Jersey. Dataram Memory was founded in 1967. It provided core memory for many early Digital Equipment computer systems. Dataram's products include memory and storage, and related technical products and services for desktops, laptops, workstations and servers. The company sells worldwide to OEMs, distributors, value-added resellers, embedded manufacturers, enterprise customers and end users. Dataram provides compatible server memory for companies including HP, IBM, Sun Microsystems, Oracle, Dell, Cisco, Lenovo, Intel and AMD. The company's manufacturing facility is in Montgomeryville, Pennsylvania, United States, and has sales offices in the United States, Europe, China, and Japan.

At least 223 companies have manufactured hard disk drives. Most of that industry has vanished through bankruptcy or mergers and acquisitions. None of the first four entrants continue in the industry today. Only three manufacturers have survived: Seagate, Toshiba and Western Digital (WD)—all of whom grew at least in part through mergers and acquisitions.

Dell Technologies Inc. is an American multinational technology company headquartered in Round Rock, Texas. It was formed as a result of the September 2016 merger of Dell and EMC Corporation.

Dysan was an American storage media manufacturing corporation, formed in 1973 in San Jose, California, by CEO and former president C. Norman Dion of San Jose, California. It was instrumental in the development of the 5.25" floppy disk, which appeared in 1976.

Epoch Systems Inc., founded in December 1986, was a hardware and software company providing Hierarchical Storage Management (HSM) file servers, and distributed storage management and data backup software. The company was founded by Ken Holberger, Chuck Holland, and Gregory Kenley. Holberger and Holland had worked together as part of the Eagle project described in The Soul of a New Machine. Kenley was a software engineer with expertise in operating systems and storage management. The company began in Marlboro MA and eventually moved to Westborough MA.

ExcelStor Technology was established in 2000 as a small hard disk drive manufacturer and has evolved into a contract manufacturer and a system integrator. ExcelStor bought the bankrupt Conner Technology PLC, its products and factory. It has a manufacturing plant in Shenzhen, China, and an R&D center in Longmont, Colorado, United States. The company is partly owned by Shenzhen Kaifa Technology, of which the major share holder is China Great Wall Computer Group Co.

Fusion-io, Inc. was a computer hardware and software systems company 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. Their ioDrive product was considered around 2011 to be one of the fastest storage devices on the market.

GlassBridge Enterprises, Inc., formerly Imation Corporation, is an American holding company. Through its subsidiary, Glassbridge focuses primarily on investment and asset management. Prior to the name change, Glassbridge had three core elements – traditional storage, secure and scalable storage and what the company calls “audio and video information” products.

The Hewlett Packard Enterprise Company (HPE) is an American multinational enterprise information technology company based in San Jose, California, founded on November 1, 2015, as part of the splitting of the Hewlett-Packard company. HPE is a business-focused organization with two divisions: Enterprise Group, which works in servers, storage, networking, consulting and support, and Financial Services. On October 31, HPE reported FY2019 annual revenue of $29.135 billion, down 5.57% from the prior year period.

Hitachi-LG Data Storage, a joint venture between Hitachi and LG, is a manufacturer of DVD and Blu-ray optical disk drives for desktop and notebook computers. Founded in late 2000, the company began operation in January 2001, and shipped its first product in the summer of that year. In 2006, HLDS began developing Blu-ray Disc drives. The company claims that it has led the disk drive industry in market share since its founding, with a 20% share for fiscal year 2001, 29% for fiscal year 2012, and 60% for fiscal year 2016. From 2015 to 2017, the company began to manufacture wireless chargers, sensors and head mounted displays for virtual reality, as ODD sales dwindled.

IBM Cloud Object Storage is a service offered by IBM for storing and accessing unstructured data. The object storage service can be deployed on-premise, as part of IBM Cloud Platform offerings, or in hybrid form. The offering can store any type of object which allows for uses like data archiving and backup, web and mobile applications, and as scalable, persistent storage for analytics. Interaction with Cloud Object Storage is based on Rest APIs.

Intel Corporation is an American multinational corporation and technology company headquartered in Santa Clara, California, in Silicon Valley. It is the world's largest and highest-valued semiconductor chip manufacturer on the basis of revenue, and is the developer of the x86 series of microprocessors, the processors found in most personal computers (PCs). Intel ranked No. 46 in the 2018 Fortune 500 list of the largest United States corporations by total revenue. Intel is incorporated in Delaware.

IntelliFlash is a brand of DataDirect Networks (DDN) based in San Jose that manufactures flash storage arrays. The company, then known as Tegile Systems, was acquired by Western Digital in 2017 and by DDN in September 2019.

LaCie is an American- French computer hardware company specializing in external hard drives, RAID arrays, optical drives, Flash Drives, and computer monitors. The company markets several lines of hard drives with a capacity of up to many terabytes of data, with a choice of interfaces. LaCie also has a series of mobile bus-powered hard drives.

LayerWalker Technology, Inc. is a fabless integrated circuit design company that announced a network storage system on a chip (SoC). Their products targeted digital home, small business and consumer electronics markets.

Lite-On is a Taiwanese Company that primarily manufactures consumer electronics, including LEDs, semiconductors, computer chassis, monitors, motherboards, optical disc drives, and other electronic components. The Lite-On group also consists of some non-electronic companies like a finance arm and a cultural company.

LSI Corporation was an American company based in San Jose, California which designed semiconductors and software that accelerate storage and networking in data centers, mobile networks and client computing.

Maynard Electronics was an American company based in Lake Mary, Florida that produced magnetic tape data storage related products.

Micron Technology, Inc. is an American producer of computer memory and computer data storage including dynamic random-access memory, flash memory, and USB flash drives. It is headquartered in Boise, Idaho. Its consumer products are marketed under the brands Crucial and Ballistix. Micron and Intel together created IM Flash Technologies, which produces NAND flash memory. It owned Lexar between 2006 and 2017.
Micropolis Corporation was a disk drive company located in Chatsworth, California and founded in 1976. Micropolis initially manufactured high capacity hard-sectored 5.25-inch floppy drives and controllers, later manufacturing hard drives using SCSI and ESDI interfaces.

MiniScribe was a manufacturer of disk storage products, founded in Longmont, Colorado in 1980. MiniScribe designed and sold stepper motor-based hard disk drives with a large amount of onboard logic for the time. They eventually moved into higher-profile voice coil motor designs, and won major contracts with IBM. They were a relatively well-known brand through the early 1980s.

NetApp, Inc. is an American hybrid cloud data services and data management company headquartered in Sunnyvale, California. It has ranked in the Fortune 500 since 2012. Founded in 1992 with an IPO in 1995, NetApp offers hybrid cloud data services for management of applications and data across cloud and on-premises environments.

Nexenta Systems, Inc. is a company that markets computer software for data storage and backup, headquartered in San Jose, California. Nexenta develops the products NexentaStor, NexentaCloud, NexentaFusion, and NexentaEdge.

HPE Nimble Storage is a predictive flash storage technology developed by Nimble Storage that was based in San Jose, California founded in early 2008. Nimble Storage produced hardware and software products for data storage, specifically data storage arrays that use the iSCSI and Fibre Channel protocols and includes data backup and data protection features. Nimble is a subsidiary of Hewlett Packard Enterprise.

Ocarina Networks was a technology company selling a hardware/software solution designed to reduce data footprints with file-aware storage optimization. A subsidiary of Dell, their flagship product, the Ocarina Appliance/Reader, released in April 2008, uses patented data compression techniques incorporating such methods as record linkage and context-based lossless data compression. The product includes the hardware-appliance-based compressor, the Ocarina Optimizer and a real-time decompressor, the software-based Ocarina Reader.

OpenIO has been founded in 2015 by Laurent Denel (CEO), Jean-François Smigielski (CTO) and five other co-founders, to offer an object storage solution for building hyper-scalable IT infrastructures for a wide range of applications. They have leveraged open source software, developed since 2006, which is based on a grid technology that enables dynamic behaviors and supports heterogenous hardware. In October 2017 OpenIO completed a $5 million funding round. In July 2020 OpenIO has been acquired by OVH.

Optiarc is a brand of optical disc drives and solid-state drives. It is owned by a US-based Vinpower Digital, Inc.

Oracle Corporation is an American multinational computer technology corporation headquartered in Austin, Texas. The company was formerly headquarted in Redwood Shores, California until December 2020 when it moved its headquarters to Texas. The company sells database software and technology, cloud engineered systems, and enterprise software products—particularly its own brands of database management systems. In 2019, Oracle was the second-largest software company by revenue and market capitalization. The company also develops and builds tools for database development and systems of middle-tier software, enterprise resource planning (ERP) software, Human Capital Management (HCM) software, customer relationship management (CRM) software, and supply chain management (SCM) software.

Pillar Data Systems, a computer data storage company headquartered in San Jose, California, developed midrange and enterprise network storage systems. Pillar Data employed 325 people and sold its products to organizations in the financial services, healthcare, government and legal industries. Its primary product-offering was the Axiom platform.

Plus Development Corporation was a majority-owned subsidiary of Quantum Corporation and invented the Hardcard hard disk drive on a card which started a wave of companies producing similar products in the late 1980s.

Priam Corporation was a company located in San Jose, California, founded in 1978 by William Schroeder and Al Wilson, two former Memorex executives, as a manufacturer of hard disk drives. Originally, they made high-capacity 14-inch drives, developed for mainframe computers, available for mini-computers and high-end workstations, but switched to 8-inch disk drives in 1980.

Promise Technology is an American-Taiwanese supplier of RAID storage catering to customers from the enterprise to SMB, as well as SOHO and digital home applications.

QLogic Corporation was an American manufacturer of networking server and storage networking connectivity and application acceleration products, based in Aliso Viejo, California through 2016. QLogic's products include Fibre Channel adapters, converged network adapters for Fibre Channel over Ethernet (FCoE), Ethernet network interface controllers, iSCSI adapters, and application-specific integrated circuits (ASICs). It was a public company from 1992 to 2016.

RAIDIX is a family of software products for professional SAN and NAS storage systems. RAIDIX supports InfiniBand, iSCSI and FibreChannel interfaces and transforms the standard x64 server hardware into a storage solution.

Samsung Electronics Co., Ltd. is a South Korean multinational electronics company headquartered in the Yeongtong District of Suwon. It is the pinnacle of the Samsung chaebol, accounting for 70% of the group's revenue in 2012. Samsung Electronics has played a key role in the group's corporate governance due to circular ownership. Samsung Electronics has assembly plants and sales networks in 74 countries and employs around 290,000 people. It is majority-owned by foreign investors. It is the world's largest manufacturer of consumer electronics by revenue. As of 2019, Samsung Electronics is the world's second largest technology company by revenue, and its market capitalization stood at US$301.65 billion, the 18th largest in the world.

SanDisk is a brand of Western Digital for flash memory products, including memory cards and readers, USB flash drives, and solid-state drives. It was acquired by Western Digital in 2016.

Silicon Power Computer & Communications Incorporated, commonly referred to as Silicon Power and as SP, is an international brand and a Taiwan-based manufacturer of flash memory products, including flash memory cards, USB flash drives, portable hard drives, DRAM modules, card readers, solid state drives, USB adapters, and other industrial grade computer products.

Sony Corporation is a Japanese multinational conglomerate corporation headquartered in Kōnan, Minato, Tokyo. The company operates as one of the world's largest manufacturers of consumer and professional electronic products, the largest video game console company, the second largest video game publisher, the second largest record company, as well as one of the most comprehensive media companies, being the largest Japanese media conglomerate by size overtaking the privately held, family-owned Yomiuri Shimbun Holdings, the largest Japanese media conglomerate by revenue.

Storage Technology Corporation was a data storage technology company headquartered in Louisville, Colorado. New products include data retention systems, which it calls "information lifecycle management" (ILM).

TerraMaster Technology Co., Ltd. is a Chinese company that specializes in computer software, network attached storage (NAS), and direct attached storage (DAS). Its headquarters is in Shenzhen, Guangdong, China. Its main peers and competitors include Synology and QNAP, which are well-known Taiwanese companies that also specialize in computer data storage.

Thecus Technology Corporation (Thecus) is a Taiwanese multinational corporation that designs and markets Network-Attached Storage (NAS), Direct-attached storage (DAS), and Network Video Recorders (NVRs). Thecus is best known for producing NAS and creates and designs its own hardware, firmware, and accessory software. Thecus's products are distributed worldwide and localized in several languages. Thecus's headquarters are located in Taipei, Taiwan with subsidiaries located around the world.

Tintri, Inc. is a division of DDN based in Santa Clara, California. Tintri provides products designed for Enterprise Cloud, virtual machines (VMs), and containers. The core product line is the VMstore, a storage system and software designed to simplify management in data center and cloud environments. Tintri completed an initial public offering (IPO) on June 30, 2017 and traded on NASDAQ under the symbol TNTR.
Toshiba Corporation is a Japanese multinational conglomerate headquartered in Minato, Tokyo. Its diversified products and services include power, industrial and social infrastructure systems, elevators and escalators, electronic components, semiconductors, hard disk drives, printers, batteries, lighting, logistics, as well as IT solutions such as quantum cryptography. It was one of the biggest manufacturers of personal computers, consumer electronics, home appliances, and medical equipment. As a semiconductor company and the inventor of flash memory, Toshiba had been one of top 10 in the chip industry until its flash memory unit was spun off as Toshiba Memory, later Kioxia, in the late 2010s.

Toshiba Samsung Storage Technology Corporation was an international joint venture company of Toshiba (Japan) and Samsung Electronics. Toshiba used to own 51% of its stock, while Samsung used to own the remaining 49%. The company specialised in optical disc drive manufacturing. The company was established in 2004.

Transcend Information, Inc. is a Taiwanese company headquartered in Taipei, Taiwan that manufactures and distributes memory products. Transcend deals in over 2,000 products including memory modules, flash memory cards, USB flash drives, portable hard drives, multimedia products, solid-state drives, dashcams, body cameras, personal cloud storage, card readers and accessories.

Virident Systems is a computer systems company headquartered in Milpitas, California, that designs and builds computer data storage products. The company was founded in June 2006 and initially received funding from Artiman Ventures, Accel India and Spansion Inc.

Whiptail was previously a privately held company that builds data storage systems out of solid-state drive components. Whiptail designed and commercialized the use of NAND flash memory as a replacement for hard disk drives in large-scale storage systems. The company is named after the whiptail racerunner, a fast lizard species indigenous to the southwestern United States.