It depends on the continuity/storyline. Not a simple yes or no. Definitely not a poll. Maybe if you elaborated on your question, we would be able to give a more detailed answer.

Yes

I thought it was just an evil government person, not an entire organization

I still think Checkmate isn't a good ally to any hero of the superhero community, it is very corrupt and wants to bring chaos and ruin to the planet.

Sometimes