Getty ImagesBEIJING– As Chinas anti-monopoly and information security crackdown sneaks into restrictions on U.S. IPOs, analysis shows that a few of the countrys greatest tech companies are deeply bought those overseas stock offerings.Gaming and social networks giant Tencent is without a doubt the dominating business shareholder, with considerable stakes in half of the 25 largest fundraises by Chinese business providing American Depositary Receipts (ADRs) in the U.S. since 2017. Thats according to CNBC analysis of openly offered information accessed through Wind Information and S&P Capital IQ.Chinese e-commerce giant Alibaba has a few holdings in the list of 25 companies, while other significant Chinese tech business like Xiaomi, Meituan and Baidu each have stakes in one or 2 of the stocks, the analysis discovered. Also appearing regularly, generally with smaller stakes, were U.S. possession managers BlackRock and Vanguard.While Shenzhen-based Tencent is best understood for its video games and WeChat messaging app thats common in China, the company has actually also turned into an investing giant.Tencents holdings in publicly listed business in 2015 rose by 785.11 billion yuan ($122.7 billion)– more than the 160 billion yuan ($25 billion) in profit reported for the year, according to the businesss yearly report. Thats not including its subsidiaries.The business itself is the largest listed in Hong Kong by market valuation.Tencent said Saturday it was alerted by the market regulator of “its choice to halt the merger of Huya and Douyu based on the results of its antitrust review.” Both business are Tencent subsidiaries that listed in the U.S. in the last 3 years.However, on Tuesday Chinas market regulator disclosed it authorized Tencents deal to privatize U.S.-listed online search engine and text-input business Sogou.Regulation intensifiesFor lots of start-ups in China, having a huge tech company as a backer has typically implied access to huge amounts of information on customer preferences.But Chinas internet industry has actually also been callous. In a 2018 book called “AI Superpowers, China, Silicon Valley and the New World Order,” Googles previous China head Kai-Fu Lee stated the local tech world resembled gladiator battles where nothing was off limits, from copying developments to launching smear campaigns.After years of loose regulation, China has intensified its crackdown on massive, homegrown tech giants in the last numerous months.Read more about China from CNBC ProRide-hailing app Didi– in which Tencent invested– held a huge U.S. IPO on June 30. Within 5 days, Chinas cybersecurity regulator, citing national security issues, introduced an investigation into the usage of data by Didi and subsidiaries of 2 Chinese companies that recently listed in the U.S.The regulator, the Cyberspace Administration of China (CAC), likewise stated new user registrations would be suspended in the interim.Over the weekend, CAC also announced that companies with data on more than 1 million users would likely require approval before they noted overseas.The increased scrutiny on information follows regulators crackdown on tech companies considering that last fall over monopolistic practices, which caused authorities fining Alibaba $2.8 billion.