Ace Security has been in business since 1979. We offer guard service, traffic control, and private investigator services throughout the entire state of Maine. We have over 100 employees so the capacity is there to handle your needs when you need us. Personal service and knowing our clients well ensures that you get the most for your security dollar. With Ace, a real live person answers the phone and not a recorded message or telephone operator in a call center in some other state. Hire experience and service. A Maine owned company.