This is the 2463rd most frequent Japanese word.
他社
"他社" means "another company" or "other companies."
In this sentence, '他社' refers to 'other companies', emphasizing a comparison between the products of different companies rather than one's own company.
他社の製品は非常に高品質です。
The products of other companies are of very high quality.
Here, '他社' is used to signify 'another company', referring to a company different from the previous one in the context of changing employment.
彼は他社に転職しました。
He changed jobs to another company.
In this usage, '他社' denotes 'other companies', highlighting the need for cooperation between multiple distinct business entities for a particular project.