What are the big data companies collected by the whole network? All kinds of data are relatively complete? Does anyone know?

Hello, this friend. As far as I know, there are still many self-proclaimed big data companies in China. There are three leading enterprises of BAT in the mainstream. The data comes from a wide range of users, but the data is basically not external. There are also many companies with data from various industries. For example, check the industrial and commercial data of enterprises, Weibo WeChat data cleaning blog, Internet information entering the sea, individuals robbing business locomotives and octopus, and so on. There is also a kind of company, which covers a variety of data forms on the Internet, that is, companies that have data in forums, blogs, post bars, news, Weibo, WeChat, e-commerce and so on. A well-known company is called Massive Information, and many big data forums can see their data cited in the report. The above is my experience in the big data industry for two years. Typing is very hard, please adopt it.