Trivantus is a payroll processing company located in Manchester, NH. Our customer service and cost effective options for payroll are backed by our state of the art online product. We are very customizbale and can handle payroll for any company no matter the size. If you are looking for products such as workers' compensation, section 125 (cafeteria plan) health insurance, background checks, and HR programs, then look no further. Trivantus provides all of these products and services as well.