We are a locally owned commercial cleaning company specializing in janitorial, commercial and industrial cleaning, as well as lawn care services in the Bismarck/Mandan and surrounding areas. Our expert office cleaning services ensure a worry-free way for your business to maintain a professional atmosphere. We do the work both inside and out, so you can concentrate on your business. Whether you require daily, weekly or monthly office cleaning services, we will customize an office cleaning or property care program specifically geared for your business. ISI has the resources and expertise to get the job done right the first time.