Construction by Soper Inc. otherwise known as CBSI has been providing quality construction services in Northern Michigan for over 25 years. These services include general contracting, construction managenment, design-build, a comprehensive range of preconstruction services, remodeling/renovations and more. Private companies, commercial and residential clients have entrusted CBSI to deliver outstanding customer service and quality to every project. CBSI can assist with any project at any stage. We offer outstanding value and service in a wide variety of residential and commercial construction services.