Can Canadian employers only immigrate one person?

Canadian employers can only immigrate one person. But the following conditions must be met:

1, 25 years old to under 45 years old, and the age can be relaxed under special circumstances.

2. College degree or above, or obtain professional technical certificate.

3. No criminal certificate, the principal applicant and family members 18 years old or above.

4. Have more than three to five years of work experience.