Nathan Nayman President, Tideline Marine Group (TMG) Mr. Nathan Nayman, 59, of San Francisco is currently President of Tideline Marine Group (TMG). TMG is a maritime transportation and logistics company providing commuter water shuttle and water taxi services, as well as maritime management and consulting services. TMG’s success to date has been driven by an ever-increasing interest from commuters, public policy and business leaders, and property developers who are looking to water transportation on the San Francisco Bay as a means of dealing with the region’s population growth, creating eco-conscious transportation systems taking people to and from jobs and minimizing ever-increasing traffic congestion. He was head of state and local relations in California for Visa Inc. from 2008 to 2015. He was executive director at the Committee on Jobs from 2000 to 2008 and was regional vice president at the Hospital Council of Northern and Central California from 1992 to 2000. Nayman is a Democrat.