romer has helped to build several public-private mission-driven b-corp companies, including guild education and project canary. project canary is a b-corp with a mission to help the oil and gas industry reduce methane leaks and reduce its climate impact. previously he worked as a financial consultant focusing on biomass energy plants and transit development projects such as denver union station. romer has worked as a public finance banker with jpmorgan chase, working on public projects including the denver international airport, children's hospital, the denver center for the performing arts, national jewish medical and research center and fastracks.