consociate
/kənˈsɒsɪkeɪt/; -ˈsoʊ-/Definitions
1. verb
to associate or join with others, especially in a social or business context
“The company consociated with several other firms to launch a joint project.”
2. noun
a person or group that is associated with another, especially in a social or business context
“The consociates of the CEO played a crucial role in the company’s success.”