Asus was founded in Taipei in 1989 by T.H. Tung, Ted Hsu, Wayne Hsieh and M.T. Liao, all four having previously worked at Acer as hardware engineers. Asus produces highest quality devices in price little better than competitors. Trying not to copy all trends, got his own ideas for it\'s devices. Asus is also producing high-quality laptops, computer peripherals, monitors.

Blackberry it\'s business phone manufacturer, also creator of it\'s own system Blackberry OS (not developed any more). For years Blackberry phones were chosen by businesses because of their QWERTY keyboards and ex. professional email solutions or raised security of the system. Blackberry is no more producing their own devices.

Google was founded in 1998 by Larry Page and Sergey Brin while they were Ph.D. students at Stanford University in California. Google started its adventure with mobile world from its own operating system - Android OS. It was powering first android device produced by HTC – HTC Dream. Device were having physical slide-out QWERTY keyboard. It’s first series of smartphone under its brand – Google Nexus were produced by Huawei, LG, HTC, Samsung and Motorola. Then it was exchanged by own Google production – Pixel. But in fact, it was produced by HTC. A part of HTC has been purchased by Google, together with its workers. Google produces high-quality and expensive devices, providing clean Android system together with first in line to get newest updates of this system. Google is known mostly from its Internet Search Engine – Google.com, but during years started to provide many other services like e-mail, maps, calendar, translation engine and many others becoming one of the biggest in the world IT company.

Honor were founded in 2013. It’s not smartphone producer itself, but a part of Huawei and it’s way to be more competitive on markets and also more cost-effective. Being a part of Huawei provides to it’s technologies and solutions in better price than it’s main brand – Huawei. Honor is used to brand not only smartphones, but laptops, TV’s, smartwatches and other wearable tech.

Cher Wang and H. T. Cho founded HTC in 1997. Initially it was producing notebooks computers. Then it was producing pocket PC’s with Windows Mobile for many brands like T-mobile, Orange etc. and later under its own – QTEK. After some time, it were rebranded again – to HTC. This producer is known from its high-quality and innovative technologies devices, in many ways – leading way for industry. From some time, position of HTC lowered, but it’s still one of the best marks on the market.

The Huawei company was founded in 1987 by Ren Zhengfei. Company is focusing on many branches of IT market, including Network Infrastructure, Semiconductors and computer hardware like laptops, tablets, smartwatches and many others. Huawei like not many on the market produces its own smartphone processor Kirin. In 2019 when their products were blocked to import to USA they decided to faster production of it’s own mobile operating system Hongmeng which currently didn’t exchanged North-american Google Android, but can do so in future. Huawei is known from high-quality, advanced technologies, and recently – great mobile phone cameras.