Office & Building suppliers include all the companies necessary for everyday operation of an office or building. This would include vendors that provide services maintain the building and work environment such Janitorial, Plumbing, HVAC and Building Maintenance. In addition, vendors that provide or install products for both inside and outside of the building are included in this category, Office Equipment, Office Furniture, Security and Alarm Systems and Solar Panels. VendOp provides reviews for many different vendors in the Office and Building category.