another company; other companies
Refers to a company other than one's own, often in business or news contexts.
We analyze our company's strengths by comparing them with other companies' products.
The technology was licensed to another company.
Our company partnered with another firm to develop a new product.
We were beaten to the announcement of the new technology by another company.
It's better to decide after comparing prices with other companies.
The marketing department is investigating what other companies are doing.
当社 refers to one's own company, whereas 他社 refers to a different, outside company.
他社 is counted with 社 when referring to a specific number of other companies, e.g. 他社3社と提携した.
Compound of 他 (other) and 社 (company).