also: こうし
noun
Refers specifically to a company or firm in a Chinese context, such as a mainland Chinese or Taiwanese corporation. Not used for Japanese companies.
from Chinese gōngsī
彼は中国の公司に勤めている。
He works for a Chinese company.
あの公司は上海に本社がある。
That firm has its headquarters in Shanghai.
会社 is the general Japanese word for 'company' and is used for Japanese and international firms. 公司 is specifically for Chinese companies.
企業 is a broader term for 'enterprise' or 'corporation' and can be used for any large business, including Chinese ones, but lacks the specific Chinese-context nuance of 公司.
Borrowed from Chinese 公司 (gōngsī), meaning 'company' or 'corporation'. The reading コンス reflects the Chinese pronunciation, while こうし is a rare Sino-Japanese reading.