
A D Marble Co Inc
King of Prussia, PAEnvironmental, Cultural, and Water Resources Engineering
Service detail: Environmental Engineering
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Environmental, Cultural, and Water Resources Engineering
Service detail: Environmental Engineering
Civil, Coastal, and Environmental Engineering and Consulting Practice
Project: Arney's Mount West Trail
ACT ONE & Associates is a consulting engineering and land surveying firm established in 2012 and based in Harrisburg, Pennsylvania. Licensed in Pennsylvania as Professional Engineers, Professional Land Surveyors, and a Sewage Enforcement Officer, the firm serves builders, contractors, developers, individual property owners, institutions, and municipalities with a broad range of civil, environmental, and structural engineering services.
Service detail: Land Surveying
We Make Building Projects a Better Value
Project: Bay Pines VA Medical Center, Electronic Health Records Modernization

Designing America's Energy Lifelines
Service detail: Chemical and Process Design

Engineering, Surveying, and Inspections
Project: 95REVIVE Pottstown Expressway Reconstruction

Precise. Responsive. Solutions.
Project: Annapolis Landfill Solar

Your trusted partner for municipal engineering.
Project: Upper Uwchlan Township Municipal Authority Administrator

Sustainable Engineering Solutions. Simplified.
Service detail: Water Engineering
Quality, innovative, and cost-effective consulting engineering solutions
Service detail: Geotechnical Engineering

Utility Engineering & Infrastructure Design
Service detail: Utility Engineering Design

Advanced Infrastructure Design, Inc. (AID) is a consulting engineering practice established in 1998. Headquartered in Hamilton, New Jersey, with an office in Philadelphia, Pennsylvania, it is staffed by licensed Professional Engineers, scientists, researchers, and technicians. The practice specializes in transportation infrastructure preservation, deploying advanced non-destructive testing (NDT) technologies to evaluate and design solutions for roads, bridges, tunnels, airports, substructures, foundations, and parking structures. It is led by President Mojgan Mohtashami, PhD, MBA.
Service detail: Pavement Engineering

Be in Control.
Project: Lock and Dam Control Systems - Ohio River
Keeping Construction Projects on Track
Project: Reagan National Airport

All County and Associates, Inc. (ACA) is a full-service civil engineering, land surveying, and environmental permitting firm established in 1992 and located in Gilbertsville, Pennsylvania. ACA serves clients across fifteen counties in eastern Pennsylvania, covering Berks, Bucks, Carbon, Chester, Delaware, Lackawanna, Lancaster, Lehigh, Luzerne, Montgomery, Monroe, Northampton, Pike, Schuylkill, and southern Wayne counties. The practice serves architects, builders, contractors, developers, homeowners, home inspectors, and real estate agents with a focus on helping clients navigate permitting and regulatory processes.
Service detail: Civil Engineering

Professional Consulting Services
Project: Flat Top Lake Dam
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American Geotechnical & Environmental Services (A.G.E.S.), Inc. is a specialty engineering practice that provides comprehensive geotechnical design and environmental services. Headquartered in Canonsburg, Pennsylvania, with branch offices in King of Prussia, Pennsylvania, McLean, Virginia, and New Jersey, it has grown to become one of the largest specialty geotechnical consultancies in the northeastern United States. The practice focuses on delivering geotechnical engineering solutions for public infrastructure projects, including highways, bridges, transit, rail, aviation, and water resources.
Service detail: Geotechnical Engineering

Your Engineering Partner in Projects Large and Small
Project: Multi-Sector Structural Engineering Portfolio

The name you trust for power generation, transmission and distribution infrastructure engineering services
Project: Eversource Utilities Distribution Services

Excel. Together.
Project: Bloomingdale Road Reconstruction
Bridging grace and imagination with functionality while delivering pragmatic solutions.
Project: Jacobs School of Medicine & Biomedical Sciences
Reliable partnership. Trusted solutions.
Project: UH Ahuja Medical Center - Drusinsky Sports Medicine Institute
Multi-Discipline Engineers and Consultants
Service detail: Design Services

Building up vision, leading future
Project: Pinel 2