About R T Software Service, Inc RTSSi was established 1979 and has specialized in the development of software that caters to small and medium size Municipalities, Water Corporations, Fuel Oil, Grocery Stores to Rock Quarries. We have dedicated our business to this area and have many happy customers some have been with us since 1979. The reason these customers are still with us today is because we support their needs be it software or accounting related. We have built our excellent reputation on support and service. RTSSi offers to you as the customer a full solution provider at an affordable value.