David Muller


David Muller is the Founder and President of Muller, Inc. He started the company in 2007 and has guided Muller to where we are today. David currently oversees the overall direction and growth strategy of the business along with the Estimating Division and Fleet Management.

David began his career on the ownership side of the real estate development business working for The Peterson Companies. It's through this lens that David came to realize the tremendous value reliable and trusted contractors bring to a project. This understanding has helped shape the way we do business and has led to the company’s continued growth since its inception.

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Sean Philbrick

Vice President

Sean Philbrick is Vice President and Co-owner of Muller, Inc. Sean runs the day-to-day operations of the business and focuses on executing growth-related initiatives for our different divisions.

Since coming on board in 2008, Sean’s client-centric philosophy has helped Muller grow to become a leading provider of civil construction services throughout Maryland, Virginia, and the District of Columbia. Under Sean’s tutelage, Muller has expanded its services beyond Erosion & Sediment Control, Hydro Excavation, Utilities Installation, Green Infrastructure, Turnkey Site Development, Pipe Inspection and Repair, Bond Release, and Stormwater Maintenance.

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