Marvin Williams is a Managing Partner at Seth Avery, LLC. He was formerly Vice President for strategic planning and business development for Parsons, Corp., responsible for engineering and development projects world-wide. Prior to joining Parsons, Mr. Williams was at Montgomery Watson Harza (MWH) where he was Special Assistant to the President and President of MWH Michigan. He was a senior manager responsible for program management, and in building sales in water, wastewater and water resources with public clients. Mr. Williams lives in Ft. Worth, TX.