Under intensifying scrutiny from U.S. lawmakers, top firms have pulled back from investing in Chinese start-ups.

Read More Foreign Investments, United States Politics and Government, Venture Capital, Computers and the Internet, Politics and Government, Start-ups, International Relations, Surveillance of Citizens by Government, Facial Recognition Software, Communist Party of China, DCM (Venture Capital Firm), GGV Capital, Sequoia Capital, China, Silicon Valley (Calif)