company union
noun
: an unaffiliated labor union of the employees of a single firm
especially : one dominated by the employer
Example Sentences
Recent Examples on the Web Local catering company Union Joints carried out the initiative, which was funded by Eminem and the Marshall Mathers Foundation. 
Leah Asmelash, CNN, 24 Apr. 2020 The company union rewards employees with a broad menu of employee discounts plus funds for team leaders to offer employee recognition, branch outings and team building. azcentral, 7 June 2018
Leah Asmelash, CNN, 24 Apr. 2020 The company union rewards employees with a broad menu of employee discounts plus funds for team leaders to offer employee recognition, branch outings and team building. azcentral, 7 June 2018 Word History
First Known Use
1917, in the meaning defined above
Legal Definition
company union
noun
: an unaffiliated labor union of the employees of a single company
Note: Historically, the company union was one formed or dominated by the company. Such unions have been long held to be illegal.