Top Companies Using IBM z/OS

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1,855 companies using this technology

By IBM

z/OS is a 64-bit operating system for IBM mainframes.

Top industries utilizing this technology

Business Services
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1-10 of 1,855 Companies using IBM z/OS

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1
Amazon
Technologies used by the company: 3,265
Amazon is a global e-commerce and cloud computing company founded in 1994 and headquartered in Seattle, Washington. The company operates through three main segments: North America, International, and Amazon Web Services (AWS). Amazon's retail platfor m offers millions of products across numerous categories through websites including amazon.com, amazon.ca, amazon.fr, amazon.de, and many others worldwide. The company manufactures electronic devices such as Kindle e-readers, Fire tablets, Fire TVs, and Echo smart speakers. Amazon provides services including AWS cloud computing, Kindle Direct Publishing for authors, marketplace platforms for third-party sellers, digital content streaming, and Amazon Prime membership program offering benefits like free shipping and media streaming. The company serves diverse customer segments including consumers, merchants, content creators, and enterprise clients across global markets. Read more
Additional technologies used by Amazon:
Apache Log4j
Ab Initio
Infinite Telecom
See 3,265 technologies
2
Walmart
Technologies used by the company: 2,829
Walmart Inc. engages in the operation of retail, wholesale, other units, and eCommerce worldwide. The company operates through three segments: Walmart U.S., Walmart International, and Sam's Club. It operates supercenters, supermarkets, hypermarkets, warehouse clubs, cash and carry stores, and discount stores under Walmart and Walmart Neighborhood Market brands; membership-only warehouse clubs; ecommerce websites, such as walmart.com.mx, walmart.ca, flipkart.com, PhonePe and other sites; and mobile commerce applications. The company offers grocery and consumables, including dairy, meat, bakery, deli, produce, dry, chilled or frozen packaged foods, alcoholic and nonalcoholic beverages, floral, snack foods, candy, other grocery items, health and beauty aids, paper goods, laundry and home care, baby care, pet supplies, and other consumable items; fuel, tobacco and other categories. It is also involved in the provision of health and wellness products covering pharmacy, optical and hearing services, and over-the-counter drugs and other medical products; and home and apparel including home improvement, outdoor living, gardening, furniture, apparel, jewelry, tools and power equipment, housewares, toys, seasonal items, mattresses and tire and battery centers. In addition, the company offers consumer electronics and accessories, software, video games, office supplies, appliances, and third-party gift cards. Further, it operates digital payment platforms; and offers financial services and related products, including money transfers, bill payments, money orders, check cashing, prepaid access, co-branded credit cards, installment lending, and earned wage access. Additionally, the company markets lines of merchandise under private brands, including Allswell, Athletic Works, Equate, and Free Assembly. Read more
Additional technologies used by Walmart:
BlackBerry Enterprise Server
Cinema 4D
Apache Log4j
See 2,829 technologies
3
Apple
Technologies used by the company: 2,521
Apple Inc. is an American multinational technology company headquartered in Cupertino, California, that designs, develops, and sells consumer electronics, computer software, and online services. Founded in 1976 by Steve Jobs, Steve Wozniak, and Ronal d Wayne, Apple has established itself as a global leader in innovation, known for creating premium products that integrate hardware, software, and services into a seamless ecosystem. The company's business model centers on delivering high-quality, user-friendly devices with distinctive industrial design and intuitive interfaces, complemented by a growing portfolio of digital services and subscription offerings. Apple operates through a vertically integrated approach, maintaining control over the entire product development process from design through manufacturing and retail distribution. The company's value proposition emphasizes product differentiation through proprietary technologies, seamless device integration, and a focus on user privacy and security. Apple serves diverse customer segments including tech enthusiasts, creative professionals, students, enterprises, and mass-market consumers through multiple channels including its iconic retail stores, online platforms, and authorized resellers worldwide. The company's integrated ecosystem strategy encourages customer loyalty by creating interconnected experiences across devices and services, positioning Apple as both a technology innovator and lifestyle brand. With substantial investments in research and development, Apple continues to explore emerging technologies while maintaining its commitment to design excellence, quality craftsmanship, and superior user experience that have defined the brand since its inception. Read more
Additional technologies used by Apple:
HEC-RAS
BlackBerry Enterprise Server
Cinema 4D
See 2,521 technologies
4
UnitedHealth Group
Technologies used by the company: 3,068
Founded in 1977, UnitedHealth Group is a leading health insurance and healthcare services company. The organization provides a comprehensive range of health insurance plans, including medical, dental, vision, and life insurance coverage for individua ls and businesses. UnitedHealth Group also offers healthcare delivery services, technology solutions, and pharmacy benefits management through its diverse portfolio of subsidiaries operating across multiple countries worldwide. Read more
Additional technologies used by UnitedHealth Group:
Apache Log4j
Ab Initio
Revolut for Business
See 3,068 technologies
5
CVS Health
Technologies used by the company: 2,914
CVS Health is building a world of health around every consumer. Their unmatched reach allows them to deliver high-quality, affordable health care when and how individuals choose. They are on a mission to deliver superior and more connected experience s, lower the cost of care and improve the health and well-being of those we serve. Read more
Additional technologies used by CVS Health:
BlackBerry Enterprise Server
IBM Retail Environment for SUSE Linux
Apache Log4j
See 2,914 technologies
6
McKesson
Technologies used by the company: 2,483
McKesson Corporation provides pharmaceuticals and medical supplies in the United States and internationally. The company operates in two segments, McKesson Distribution Solutions and McKesson Technology Solutions. The McKesson Distribution Solutions segment distributes branded and generic pharmaceutical drugs, and other healthcare-related products; and provides practice management, technology, clinical support, and business solutions to community-based oncology and other specialty practices. This segment also provides specialty pharmaceutical solutions for pharmaceutical manufacturers; and medical-surgical supply distribution, logistics, and other services to healthcare providers. In addition, this segment operates retail pharmacy chains in Europe and Canada, as well as supports independent pharmacy networks in North America and Europe; and supplies integrated pharmacy management systems, automated dispensing systems, and related services to retail, outpatient, central fill, specialty, and mail order pharmacies. This segment serves retail national accounts, including national and regional chains, food/drug combinations, mail order pharmacies, and mass merchandisers; and institutional healthcare providers, such as hospitals, health systems, integrated delivery networks, and long-term care providers, as well as offers its services to pharmaceutical manufacturers. The McKesson Technology Solutions segment provides clinical, financial, and supply chain management solutions to healthcare organizations. McKesson Corporation was founded in 1833 and is headquartered in Irving, Texas. Read more
Additional technologies used by McKesson:
BlackBerry Enterprise Server
Cinema 4D
Apache Log4j
See 2,483 technologies
7
ExxonMobil
Technologies used by the company: 1,321
Founded in 1999 and headquartered in Irving, Texas, ExxonMobil has evolved from a regional marketer of kerosene to an advanced energy and chemical innovator, and one of the largest publicly traded companies in the world. An industry leader in almost every aspect of the energy and chemical manufacturing businesses, the company operates facilities or market products in most of the worlds countries, explore for oil and natural gas on six continents, and research and develop next-generation technologies to help meet the dual challenge of fueling global economies while addressing the risks of climate change. Read more
Additional technologies used by ExxonMobil:
BlackBerry Enterprise Server
Adobe Illustrator
Apache Log4j
See 1,321 technologies
8
Microsoft
Technologies used by the company: 3,477
Microsoft Corp. engages in the provision of developing and marketing software and hardware services. Its products include operating systems for computing devices, servers, phones and intelligent devices. It also offers server applications for distrib uted computing environments, productivity applications, business solution applications, desktop and server management tools, software development tools, video games, and online advertising. It operates through the following segments: Productivity and Business Processes, Intelligent Cloud, and More Personal Computing. The Productivity and Business Processes segment consists of products and cloud services in portfolio of productivity, communication, and information services. It comprises of office commercial, office consumer, and Microsoft Enterprise Services dynamics business solutions. The Intelligent Cloud segment offers hybrid server products and cloud services. It comprises of server products and cloud services and enterprise services. The More Personal Computing segment comprises of windows, devices, gaming, and search advertising. The company was founded by William Henry Gates III in 1975 and is headquartered in Redmond, WA. Read more
Additional technologies used by Microsoft:
Apache Log4j
Exact MAX
Ab Initio
See 3,477 technologies
9
Toyota Motor Corporation
Technologies used by the company: 1,140
Toyota Motor Corporation is a Japanese automotive manufacturer headquartered in Toyota, Aichi, Japan. The Company operates through three business segments. The Automobile segment is engaged in the design, manufacture and sale of car products, includi ng sedans, minivans, 2BOX cars, sport-utility vehicles and trucks, as well as the related parts and accessories. The Finance segment is involved in the provision of financial services related to the sale of the Company's products, as well as the leasing of vehicles and equipment. The Others segment is involved in the design, manufacture and sale of housings, as well as the information and communication business. As of March 31, 2014, the Company had 542 subsidiaries and 203 associated companies. Read more
Additional technologies used by Toyota Motor Corporation:
DocuSign
Resolve
DoubleClick
See 1,140 technologies
10
Cigna
Technologies used by the company: 2,115
The Cigna Group is a global health company committed to improving health and vitality. We relentlessly challenge ourselves to partner and innovate solutions for better health. Our global workforce works through Cigna Healthcare and Evernorth Health S ervices to fulfill the customer relationships we serve. Read more
Additional technologies used by Cigna:
BlackBerry Enterprise Server
Apache Log4j
Adobe Fireworks
See 2,115 technologies

Best Alternatives for IBM z/OS

Usage statistics of alternative technologies to IBM z/OS, based on Zoominfo's comprehensive dataset

Ubuntu Unix CentOS Linux Debian IBM z/OS

Products owned by IBM

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Additional top technologies lists

See additional lists of companies utilizing top technologies, ranked by revenue, size, and funding.

Frequently Asked Questions Regarding IBM z/OS

What is the IBM z/OS technology?

z/OS is a 64-bit operating system for IBM mainframes. For more information,

How many companies added the IBM z/OS technology in the last month?

30 companies added IBM z/OS to their tech stack in the last month.

What is IBM z/OS technology’s market share?

IBM z/OS market share is 0.26% out of all the technologies in the same category.

What companies are using IBM z/OS?

From the data gathered in Zoominfo, Amazon, Walmart, Apple, UnitedHealth Group, CVS Health, are using the IBM z/OS technology. You can see the full list in the above results table.

How many companies are using IBM z/OS?

1855 companies are using IBM z/OS.

Which industries do companies commonly use IBM z/OS for their needs?

Companies in Business Services, Custom Software & IT Services, Finance commonly use IBM z/OS.

What are the best alternatives for IBM z/OS?

According to Zoominfo’s data Ubuntu, Unix, CentOS, Linux, Debian, are competitors of IBM z/OS. For more information,

See more information about IBM z/OS

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1,855 companies using this technology

By IBM

Top industries utilizing this technology

Best Alternatives for IBM z/OS

Products owned by IBM

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Top Companies utilizing Windows Server

Frequently Asked Questions Regarding IBM z/OS

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Top Companies Using IBM z/OS

1,855 companies using this technology

By IBM

Companies adopted this tech in the last month

The market share of the technology in its category

Top industries utilizing this technology

Best Alternatives for IBM z/OS

Products owned by IBM

Additional top technologies lists

Top Companies utilizing ThreadX

Top Companies utilizing LAMMPS

Top Companies utilizing CA-11

Top Companies utilizing Windows Server

Frequently Asked Questions Regarding IBM z/OS

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