社員達は

the employees

→ 社員
phrase Rare #45,681
the employees 達 marks a group of employees, and は marks them as the topic of the sentence.
JA: 社員達は昼休みに公園へ行きました。
EN: The employees went to the park during their lunch break.

残りの社員達は予告無しに解雇された。

The remaining employees were fired without warning.