Ben Stewart is Director of Preconstruction Services and is based in Manhattan’s Mid Atlantic-area office in Arlington, Virginia. He joined Manhattan in 2006. He holds the LEED® AP BD+C credential and has degrees in Economics and Criminology Pre-Law from the University of Maryland, and Construction Management from Montgomery College.

Raylena Browning is Vice President of Preconstruction and leads preconstruction services nationwide. She is an Associate Design-Build Professional and holds the LEED® AP BD+C designation. she is a graduate of the University of Houston with a degree in Construction Management.  

Jonathan Collins is Vice President of Preconstruction in North Texas. He is a Certified Professional Estimator (CPE) and holds the LEED® AP BD+C credential. He is a graduate of Texas A&M University with a degree in Construction Science.

With a background in estimating and business development, Jackie Ryan brings more than 20 years of architecture and construction industry experience.