Top Companies Using C#

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42,680 companies using this technology

By Microsoft

C# is a multi-paradigm programming language encompassing strong typing, imperative, declarative, functional, generic, object-oriented (class-based), and component-oriented programming disciplines.

Top industries utilizing this technology

Business Services
Custom Software & IT Services
Software
Manufacturing
Finance

1-10 of 42,680 Companies using C#

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1
Amazon
Technologies used by the company: 3,036
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 3,036 technologies
2
Walmart
Technologies used by the company: 2,645
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 2,645 technologies
3
Aramco
Technologies used by the company: 286
Aramco is an integrated energy and chemicals company, operating across the hydrocarbon value chain. Its businesses include exploration, development and production of crude oil, natural gas and NGLs, as well as refining, chemicals, base oils, lubrica nts, retail, distribution, supply and trading. Aramco also invests in technology, digital solutions, new energies and diversified industrial businesses to support long-term growth and sustainability. Read more
Additional technologies used by Aramco:
Cinema 4D
MATLAB
Core
See 286 technologies
4
Apple
Technologies used by the company: 2,335
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 2,335 technologies
5
UnitedHealth Group
Technologies used by the company: 2,809
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 2,809 technologies
6
PetroChina
Technologies used by the company: 73
PetroChina Company Limited, founded in 1999, is China's largest oil and gas producer and distributor with a dominant position in the country's energy sector. The company operates globally across Asia, Europe, North America, South America, Africa, the Middle East, and Oceania, providing comprehensive energy services. PetroChina specializes in oil and gas exploration, production, refining, transportation, and marketing. As a publicly traded company, PetroChina is listed on multiple stock exchanges including the New York Stock Exchange, Hong Kong Stock Exchange, and Shanghai Stock Exchange. The company maintains a diverse portfolio of energy assets and infrastructure while offering both business-to-business services and mobile applications for its customers. Read more
Additional technologies used by PetroChina:
Informatica
MATLAB
MicroStation
See 73 technologies
7
CVS Health
Technologies used by the company: 2,625
CVS Health is a diversified healthcare company providing healthcare services, pharmacy care, health benefits, and consumer health solutions. Its businesses include CVS Pharmacy, CVS Caremark, CVS Specialty, Aetna, and Oak Street Health. The company s erves individuals, employers, health plans, and government organizations through retail pharmacies, prescription benefit management, specialty pharmacy, insurance, primary care, and other healthcare services, with a focus on improving access, affordability, and health outcomes. Read more
Additional technologies used by CVS Health:
BlackBerry Enterprise Server
Apache Log4j
IBM CICS
See 2,625 technologies
8
McKesson
Technologies used by the company: 2,266
McKesson Corporation is a publicly traded healthcare company headquartered in Irving, Texas, founded in 1833. The company provides pharmaceutical distribution, medical supplies, and healthcare technology solutions through four core segments: North Am erican Pharmaceutical, Oncology and Multispecialty, Prescription Technology Solutions, and Medical-Surgical Solutions. McKesson serves pharmacies, hospitals, health systems, pharmaceutical manufacturers, and government facilities across North America and internationally. Read more
Additional technologies used by McKesson:
BlackBerry Enterprise Server
Cinema 4D
Apache Log4j
See 2,266 technologies
9
Alphabet
Technologies used by the company: 82
Alphabet Inc. is a publicly traded multinational technology holding company headquartered in Mountain View, California, trading on the NASDAQ under the ticker symbol GOOGL. Founded in October 2015 as the parent holding company of Google, Alphabet ser ves as an umbrella organization for a diverse portfolio of businesses and subsidiaries. Its core subsidiary, Google, operates a broad range of widely used products and platforms including Google Search, Google Maps, Gmail, Android, Chrome, YouTube, Google Cloud, and Google Ads. Beyond Google, Alphabet's portfolio includes Verily Life Sciences, GV (venture capital), Calico (life sciences and longevity research), and X (moonshot research and development). The company generates revenue primarily through online advertising services, cloud computing, hardware products such as Pixel phones and Google Nest devices, and subscription-based services. Alphabet invests heavily in infrastructure, artificial intelligence, machine learning, and data analytics, maintaining a global business presence across the Americas, Europe, the Middle East, Africa, and Asia-Pacific. Read more
Additional technologies used by Alphabet:
MATLAB
Persona
Google Global Site Tag
See 82 technologies
10
Volkswagen
Technologies used by the company: 1,112
Volkswagen AG manufactures automobiles and commercial vehicles in Europe, Germany, North America, South America, the Asia-Pacific, and internationally. It operates through three segments: Passenger Cars and Light Commercial Vehicles; Commercial Vehic les; and Financial Services. The Passenger Cars and Light Commercial Vehicles segment develops vehicles, engines and motors, vehicle software, and vehicle batteries; produces and sells passenger cars and light commercial vehicles, and the parts. This segment also offers compact cars, luxury vehicles, and motorcycles, as well as mobility solutions. The Commercial Vehicles segment engages in the development of vehicles, engines, and motors; production and sale of trucks and buses, parts, and related services. Read more
Additional technologies used by Volkswagen:
HSQLDB
SAP Business Warehouse
BlackBerry Enterprise Server
See 1,112 technologies

Best Alternatives for C#

Usage statistics of alternative technologies to C#, based on Zoominfo's comprehensive dataset

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

Frequently Asked Questions Regarding C#

What is the C# technology?

C# is a multi-paradigm programming language encompassing strong typing, imperative, declarative, functional, generic, object-oriented (class-based), and component-oriented programming disciplines. For more information,

How many companies added the C# technology in the last month?

887 companies added C# to their tech stack in the last month.

What is C# technology’s market share?

C# market share is 0.16% out of all the technologies in the same category.

What companies are using C#?

From the data gathered in Zoominfo, Amazon, Walmart, Aramco, Apple, UnitedHealth Group, are using the C# technology. You can see the full list in the above results table.

How many companies are using C#?

42680 companies are using C#.

Which industries do companies commonly use C# for their needs?

Companies in Business Services, Custom Software & IT Services, Software commonly use C#.

What are the best alternatives for C#?

According to Zoominfo’s data CSS, PHP, HTML, Lua, GraphQL, are competitors of C#. For more information,

See more information about C#

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42,680 companies using this technology