Ohio Custodial Management (OCM) is one of Columbus' largest family-owned businesses. We take great pride in the fact that we have a terrific group of team members that provide top janitorial services to our customers. OCM is a regionally recognized contract custodial service firm that provides the highest quality custodial programs to Corporate Headquarters, Industrial and Distribution Centers, Mutli-tenant Properties, Medical Centers, Special Improvement Districts and Educational Institutions.