counterpart|counterparts

我和我们另一个分支的对应人员开了个会。

I had a meeting with my ___counterpart in our other branch.

CEO与她的欧洲对应人员会面讨论合并事宜。

The CEO met with her European ___counterpart to discuss the merger.

在工作中，我对我的英语和与对应人员谈判的能力更加自信了。

I feel much more confident at work in terms of both my English and the ability to negotiate with my ___counterparts.