"Union" Hosting

I’m doing a site for a political candidate. She asks if there is such a thing as a “union” hosting company. I see there’s a site the caters to unions and political activists, but really, what does that tell me? I can’t tell if they are really union-based, or just targeting union-like groups as a niche group. Any ideas?

Maybe something like All Union Hosting?

Thanks Immerse!