AVAILABLE TO MASSACHUSETTS COMPANIES Altus Dental Insurance Company, Inc. has quickly become one of the fastest growing dental benefits companies in Massachusetts. You can choose from among the highly affordable Altus Preferred, Altus Preferred Plus, with expanded out-of-network coverage, or the Altus One Person Dental. No matter which plan you choose, you will enjoy affordable premiums, excellent customer service and innovative online technology that makes it easy to manage your dental plan.