Roemer is the CEO and founder of Frosha, a startup that helps companies structure and cleans their data with the use of Machine Learning. He has a background in Natural Language Processing, software engineering, and Master Data Management. He co-founded an earlier start-up that was successfully sold in 2014. His current venture, Frosha, was founded in December 2016 and received European Horizon 2020 funding through the Data Pitch 2017 program. Throughout the Data Pitch program, Frosha co-operated with Uniserv GmbH as a data provider.