Serving the greater Mid-Atlantic region, our Philadelphia office is a trusted partner in innovative geotechnical solutions. Our local team leverages deep regional insight and global expertise to support infrastructure, commercial, and industrial projects of all sizes. We excel at providing design-build solutions for the Karst geology of Eastern Pennsylvania, primarily using micropiles and compaction grouting.
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Our specialties
Deep foundations
Our deep foundations techniques include: drilled shafts, augercast piles, and micropiles.
Ground improvement
Our ground improvement techniques include: aggregate piers and rigid inclusions.
Grouting
Our grouting techniques include: compaction grouting.
Earth retention
Our earth retention techniques include: soldier piles and lagging, tangent/secant piles, interlocking pipe piles, underpinning, and tiebacks and internal bracing.
Key contacts
Mark brings over 18 years of experience in the heavy construction industry, including 12 years specializing in deep foundations with Keller. He holds a Bachelor’s degree in Civil Engineering from Lehigh University and a PE license in Pennsylvania. As a key member of Keller’s Drilled Shaft Product Team, Mark has been pivotal in securing and executing large, complex projects nationwide. He oversees operations for the PA/OH Branch, emphasizing client partnership and delivering engineered solutions.
Carlos Medina holds a BS and MS from Lehigh University. He has been employed by Keller for 14 years. He is a registered engineer in PA and MD. Throughout his career he has focused on grouting project, micropiles and shoring solutions.
Robert holds a BA in Civil Engineering from Drexel University. He is the manager of the ground improvement team for the PA/DE/South Jersey area. While primarily focused on ground improvement, he has worked in the geo-structural market for the past 12 years.