Bringing Sales to AI Chatbots! In the last five years, we have brought in nearly 200 million€ of Sales to our customers. We put technology to work for You. Customer service and sales are moving to live chat channels. Businesses need to be where their customers are. Upseller provide the market with the best artificial intelligence chatbot solution to sell and serve for you. Our every project is custom-tailored to meet customers needs. Upseller - For Growth.