The Wing was set up by two women in 2016 to be a co-working and community club for women. There are branches in New York, California and London.
They weren't legally allowed to make it women-only so they have had to call it women-focused. You can guess what's happened can't you?
https://nypost.com/2019/12/17/men-are-showing-up-to-the-wing-and-women-are-pissed/
This is why we need single sex spaces. Because unless a space is specifically designated as single sex, men will just come and take it over