I am struggling with whether or not to invite all my coworkers. I work with a small group of people in my department. There are 8 people total and 7 of them are women. We are having a small-ish wedding of about 60-70 people, and only planned on inviting family and close friends. I wasn't planning on inviting all my coworkers, but the reason I am questioning it is because my MOH and one of my bridesmaids are also coworkers. I have known my MOH for over 6 years and we were friends way before working together at this job. I met the bridesmaid through our job, but we have grown close over the last 3 years at work. We all three hang out together outside of work, including birthday parties, baby showers, etc. Obviously we are close friends, but I am worried that it will seem rude if I only invite them and not my other coworkers.
My MOH, bridesmaid, and myself are all in our twenties and the other women are all older. We all get along really well and routinely go to lunch together, but I do not hang out with the others outside of work. The ladies are all really sweet and were excited for me when they found out I was engaged. (They would always ask if my FI had proposed after every holiday, long weekend, etc.) I try not to talk about wedding stuff at work, but they ask me about finding my dress, venue, etc. One of them even offered to help make centerpieces!
I am just torn on what to do. Inviting them would be adding about 12 people to the guest list.