About us. Michael's Cleaning Company Co is a small family owned business in Portsmouth, NH. Our goal is to provide top notch, high quality cleaning services with a keen eye for detail and have fun while doing it. We are a team oriented company that does what we can to help each other fullfill their duties while keeping all spaces looking like new. Our work environment includes. Casual work attire. Relaxed atmosphere. On-the-job training. Safe wor...