Acer — тайваньская компания по производству компьютерной техники и электроники. Компания занимает 487 место в Fortune Global 500 (2011 год) Источник: https://ru.wikipedia.org/wiki/Acer

Avaya is a recognized innovator leading business communications for the digital age. Avaya delivers smart global solutions and technologies for customer and team engagement, unified communications and collaboration, contact center and customer experience management, and networking. We provide related services to large enterprises, midmarket companies, small businesses, and government organizations around the world. Avaya Solutions bring people together with the right information at the right time in the right context, helping to enable a higher level of engagement among customers, teams, employees and partners to improve efficiency and quickly address critical business challenges. Designed to be highly scalable, reliable, secure and flexible, these solutions help reduce costs and simplify management while providing a platform for next-generation engagement and collaboration. They are available in a variety of deployment models including public, hybrid and private cloud as well as on a customer’s premises. All are supported by Avaya’s portfolio of professional and support services.

Check Point Software Technologies Ltd. is an international provider of software and combined hardware and software products for IT security, including network security, endpoint security, data security and security management. As of 2016 the company has approximately 3,400 employees worldwide. Headquartered in Tel Aviv, Israel, the company has development centers in Israel, California (ZoneAlarm), Sweden (Former Protect Data development centre), and Belarus. The company has main offices in the United States, in San Carlos, California, in Dallas, Texas, in Ottawa, Ontario, Canada, and Sydney Australia. Check Point competes in the antivirus industry against AVG, Avira, ESET, F-Secure, Kaspersky, McAfee, Panda Security, Sophos and Symantec among others.

Cisco Systems is a global manufacturer of network equipment: routers, switches and servers, as well as software for data transmission on the Internet and corporate networks. The company was founded in 1984 in San Jose (California, USA). Today, Cisco dominates the Internet Protocol (IP) -based network equipment segment, and also manufactures cybersecurity, video conferencing systems, and other network equipment and software. In addition, Cisco offers a number of cloud services. Cisco's primary customers are large enterprises and telecommunications service providers, but the company also sells products aimed at small businesses and the public sector. Cisco offers products and services in four categories. The company's infrastructure platforms generate more than half of its revenue. This includes switching devices, routing devices, wireless communications, and data processing solutions. Applications that account for over 10% of revenue are primarily software related to networking and data processing platforms. Applications include collaboration tools (unified communications, Cisco TelePresence video conferencing) as well as AppDynamics and Internet of Things software. The cybersecurity product category generates more than 5% of the company's revenue and includes network security, email security, identity and access, advanced threat protection, and unified exposure management products. In addition, Cisco offers consulting services. Cisco's total revenue in fiscal 2020 was nearly $ 50 billion. The company is expanding its research and development (R&D) investments in areas such as the cloud platform, remote collaboration platform, analytics and telecommunications technologies.

Citrix was founded in 1989. The company specializes in virtualization technologies, cloud computing and network security.

Citrix has become a renowned provider of multi-user solutions. The company's key advantage was the OS source code license that Citrix received from Microsoft. The use of its own optimized ICA data transfer protocol allowed Citrix to successfully compete in the market with other powerful players. The company's flagship product is Citrix Presentation Server (now XenApp).

In addition, the company offers a range of solutions for working with clouds and deploying virtual desktop infrastructures (VDI):

Citrix Endpoint Management is a single end-to-end solution for managing mobile devices and applications for consistent productivity.

Citrix Workspace is a platform for bringing all applications and data together in a secure, unified and personalized workspace
Citrix Cloud is a suite of cloud services that simplifies deployment and management of Citrix technologies, allowing you to extend existing software landscapes.

Citrix also offers software tools for working with hybrid and multicloud environments.

In 2005, Citrix acquired NetScaler, a networking company and also a hardware vendor. In 2007, the company acquired XenSource, a virtualization developer based on Xen, an open source hypervisor. Hundreds of thousands of customers worldwide use Citrix solutions. The company currently employs about 8,500 employees. Citrix is ​​headquartered in Fort Lauderdale, Florida, USA.

Dell EMC (EMC Corporation until 2016) is an American multinational corporation headquartered in Hopkinton, Massachusetts, United States. Dell EMC sells data storage, information security, virtualization, analytics, cloud computing and other products and services that enable organizations to store, manage, protect, and analyze data. Dell EMC's target markets include large companies and small- and medium-sized businesses across various vertical markets. The company's stock (as EMC Corporation) was added to the New York Stock Exchange on April 6, 1986, and was also listed on the S&P 500 index. Source: https://en.wikipedia.org/wiki/Dell_EMC

HP Inc. (also known simply as HP and stylized as hp) is an American technology company, created on November 1, 2015 as one of two successors of Hewlett-Packard, the other being Hewlett Packard Enterprise. It develops and provides hardware, such as personal computers and printers. It is the legal successor of the old Hewlett-Packard. The split was structured so that Hewlett-Packard changed its name to HP Inc. and spun off Hewlett Packard Enterprise as a new publicly traded company. HP Inc. retains Hewlett-Packard's stock price history, as well as its NYSE ticker symbol of HPQ (whereas Hewlett Packard Enterprise uses a new ticker, HPE). HP is now focusing on consumers who improve their computers frequently and spend more money on games. They released the gamer-centric Omen line of laptops and desktops targeted at mid-range consumers with an Omen X line to debut later in 2016.

NetApp, Inc. is an American multinational storage and data management company headquartered in Sunnyvale, California. It is a member of the NASDAQ-100, and has ranked in the Fortune 500 since 2012. Founded in 1992 with an IPO in 1995, NetApp offers software, systems and services to manage and store data, including its proprietary Data ONTAP operating system. Source: https://en.wikipedia.org/wiki/NetApp