Mark has more than 30 years’ experience at the intersection of cities and finance. Before Urban Us, Mark led Citi’s Green Communities Venture Fund and has been an investor and advisor for multiple urban tech startups. His work with startups goes back to 1998, while his work on Wall Street, managing financings for multiple cities, hospitals, universities, power agencies and housing authorities, goes back to 1988. Mark, and his wife, Tammy, both with degrees from Harvard, Hopkins and Muhlenberg, spend their free time serving on several higher education and arts boards throughout the US and abroad.