Leadership Team

Our Leadership Team is focused on delivering innovative solutions, world-class client service and superb value for our clients, employees, partners and stakeholders.

  • Babur R. Mian
    Babur R. Mian Co-Founder, President & CEO

Babur R. Mian is the Co-Founder, President and CEO of the firm. Mr. Mian is a registered professional engineer in multiple states and has more than 20 years of experience in the industry.  His focus is, and has always been, on finding innovative ways to meet client needs.

Prior to founding Terra Site Constructors, Mr. Mian led the growth of multiple firms in the U.S. and abroad.  He is responsible for the oversight of all functions at Terra Site Constructors as well as the development of the budget, strategy and long-term plans for the firm, in collaboration with its other leaders.

Mr. Mian holds bachelors and master’s degrees in Civil Engineering from Virginia Polytechnic Institute and State University and has completed extensive training in leadership and management at the Wharton Business School.

  • Allan “Jay” H. Josselyn
    Allan “Jay” H. Josselyn CO-FOUNDER &

Allan “Jay” H. Josselyn is the Co-Founder and Executive Vice President of Risk Management for the firm. Mr. Josselyn grew up in the construction industry and has decades of experience, holding leadership roles and other positions at nationally-recognized construction firms.

He is responsible for overseeing the risk profile for all company projects with the goal of tracking projects from concept to implementation to identify, mitigate, and respond to risks in order to achieve project objectives. His specific expertise is in the Critical Path Management and Procurement arenas.

Mr. Josselyn brings extensive, industry-leading experience in managing complex construction projects for Terra Site Constructors.


Thomas Mutchler is the Chief Operating Officer for Terra Site Constructors.  An industry veteran with more than four decades of leadership experience in specialty construction, Mutchler holds an Associate of Applied Science degree in Civil Engineering and graduated from the Management training program at the Harvard Business School, Boston, Mass.  He also holds various certifications and accreditations, and has specialized training in safety, construction, and accounting.

Prior to joining Terra Site Constructors, Mutchler was instrumental in the growth of one of the most respected construction companies in Northern VA.  He was also President and Owner of his own contracting firm which was acquired by another entity in 2007.

Mutchler’s responsibilities include development of innovative solutions for non-standard construction projects with special requirements and overseeing the daily activities of Terra’s team of experienced engineers and seasoned construction personnel to ensure efficient and effective project delivery and client satisfaction.

  • Eric Hilberath

Eric Hilberath is Terra Site Constructors Vice President of Sales and Business Development and has been leading the firms’ sales efforts since the inception of Terra Site Constructors.  A graduate of Virginia Polytechnic Institute and State University, Mr. Hilberath is a veteran of the engineering construction industry with decades of experience in design/build and specialty construction with a proven track record of technical, organizational and leadership skills.

Prior to joining Terra Site, he worked for two other design, supply and construction firms holding positions with increasing responsibility while consistently exceeding sales goals and demonstrating exceptional long term client relationships with General Contractors, State Agencies, Vendors/Suppliers and colleagues.

Eric is responsible for maintaining Terra’s position as the preferred specialty Sub Contractor for major Highway, Industrial and Commercial projects in the Mid-Atlantic region while growing Terra’s construction service offerings, expanding our innovative product applications, and expanding our geographic footprint.

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