Among them: 1, Beisen is the most famous and only venture capitalist. Most domestic enterprises use Beisen, which is well integrated with the Internet. They study more than 200 people, so it's really harmful to evaluate them.
2, good choice, Thomas is the agent of foreign products, and more is the foreign model. Usually sold by the meter, but the professionalism is good.
Nomsida is also a local company with a university background. The things made by teachers in China school are consistent with those made by enterprises in China.
4.SHL is a British evaluation company, but it is famous all over the world, and it is not widely used in China.