It is a regular company, such as some well-known enterprises. Actually, the registered name is different from what we know. For example, Meituan-actually called Beijing Sankuai Online Technology Co., Ltd., Qunar.com-Beijing Fu Na Information Technology Co., Ltd., Taobao-Alibaba; JD。 COM- Beijing JD.COM Century Trading Co., Ltd. changed some registered names because it was found in the later promotion that these names were not good enough or suitable for marketing.
Informal companies recruit people in the name of big companies. So if you want to verify, you can check the registered name on Baidu. If they are consistent, then there is no problem. Baidu knows there is a company inside. If even Baidu knows it can't be found, it's either too small or deceptive. Another way is to check the business license on the website of the industrial and commercial bureau.
You can also ask the interviewer directly during the interview to see if his answer is reasonable.