I didn't check off anything in the poll because it depends on what you mean by "out"...
My 18-year-old kiddo knows I'm poly and that Guy is my boyfriend and not just a "friend of the family", which is how Kiddo and their sister (pronouns with Kiddo are an iffy thing; I go by "their" so I don't use the wrong gender) were initially introduced to him. I only came out to Kiddo after my trip to visit Guy was settled, though. (So about 2 weeks ago.) They're completely cool with it and wishes Guy could live closer to us. On the other hand, the sister, Younger, has not been told, partly because I'm not sure she would fully understand and partly because I'm concerned she would tell her father (my ex), who would almost certainly use the situation as leverage to try to gain custody. I don't need that.
My best friend PIC (partner-in-crime) knows. Coming out to him as poly was a little nerve-wracking, but he knows Guy and me, and it was hard as hell having conversations with PIC without mentioning Guy. PIC took it totally in stride; he reads a lot of science fiction and fantasy, and while he's mono, polyamory makes sense to him on an intellectual level.
My mother knows and is somewhat opposed to it, but tries to be supportive and understanding. She sees that the situation makes me happy; she just worries it's going to screw up my marriage to Hubby. She's also forbidden me to tell my father because "He wouldn't understand", but I'm going to overrule her on that as soon as I have a chance to talk to my dad alone. My first introduction to the idea of polyamory was my dad's best friend and the friend's two boyfriends, all of whom lived together as a committed triad for over 20 years until dad's friend passed away. So somehow, I think my dad would get it.
A couple of friends who know the three of us suspect, but I haven't actually told them. While I've been visiting Guy the past couple of days, we've talked about how open we want to be, and have come to the decision that while we aren't going to say 'Hey, guess what, here's what's going on", we also aren't going to hide it. He's being cautious because his ex-wife has told him if she finds out he's in a relationship with *any* woman, she'll cut down how often he's able to see their son so "he won't get confused"... nothing like blackmail. But Guy doesn't want to completely hide our relationship either, so we're in the process of sorting that out.
For hubby's part, he's actively trying to keep his mother from finding out about the open part of our marriage, let alone about Guy, because his mother is very... set in her mind, let's say. She wouldn't understand and would be convinced we're heading to divorce court any second now. He isn't so concerned about his father, sister, and uncle (the relative he's closest to) finding out, but he isn't about to tell them.
Co-workers aren't an issue for either of us, really; hubby works with his dad and uncle, and there's only one other employee in the place, and I work for myself and occasionally do paperwork for the family business. Guy's coworkers don't care what he does as long as he does his job.