Now why don't some companies go directly to the personnel department for interviews, but let some recruitment companies help them recruit? Please tell me what you know. Thank you.

There are many reasons, the common reasons are:

1, which can reduce the company's cost. Once an enterprise sends someone to recruit, it needs the company's human resources department to send 1-2 people to recruit, which will delay at least half a day in the talent market, and the cost is still relatively high, and there is no time for one morning;

Many companies need to recruit all the year round, but they don't want to spread too much experience. When I met this kind of company, the price was cheap and the effect was not bad, so I joined forces.

3. Some information is not necessarily given by the enterprise. Many companies that recruit on behalf of others are recruited only after learning about it online or through other channels. Then if someone signs up, he will contact the enterprise and talk about cooperation with the enterprise. If they don't cooperate, they will introduce these applicants to their partners for some reason.

In the final analysis, it's all about money.