Wiktionary
n. a front organization that appears to be an independent voluntary association or charitable organization
Usage examples of "front group".
The center stream continued to follow the front group as backup, while the outside streams poured into the megascrapers.
They're the ones who bombed the Pasteur Institute, or had it done by a front group to cover their tracks.
Somewhere, behind the front group, Apollo knew that others must be getting crushed, pushed, and trampled, but he couldn't see that.
Elbryan had to grit his teeth and let the front group of monsters move past his position, though with every hack of a goblin axe against one of the beautiful trees, the ranger wanted to rush out and cut the creature down.
Harold Ickes, Roosevelt's interior secretary (and father of Clinton deputy chief of staff by the same name), was a member of the Stalinist front group League for Peace and Democracy.
And then, after Sun Yat-sen died, became essentially a front group for warlords.