I understand both of you. You need to find a solution you both can accept.
Your wife has no sexual relationship with these men, she needs to have them as friends in her life. You can't ask of her to give up her friends, what you can do is explain how you feel.
Maybe you can find female friends that you can have contact with or maybe you can invite them for dinner so that you get to know them and can see for yourself that nothing is going on. In time, they might become your friends too.