We are a Design/Build General Contractor specializing in custom, build to suit, Commercial, Industrial, Manufacturing and Agricultural facilities. O'Brien Construction Co. Inc. is a Design/Build General Contractor specializing in Commercial, Agricultural, Industrial, Manufacturing and Office Buildings with over 40 years in business. OCC is a Design/Build General Contractor. Essentially, a custom commercial builder. Whatever your business demands, our in-house team will design your facility to your needs. Whether you are a farmer who needs a shop that allows your workforce to operate more efficiently to keep operating, or an automobile dealer that needs a dealership that is not only aesthetically pleasing but provides a comfortable atmosphere for your customers and staff. We design and build to suit your needs. With our experienced engineering and architectural teams we can build what you want and need to provide economical and functional high quality buildings.