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Business Details
40 Years
experience
Comprehensive Engineering Solutions for Infrastructure Development
Established in 1986, we are a multidisciplinary engineering firm with over 500 professionals specializing in civil, structural, geotechnical, and environmental engineering, as well as land surveying. Our team delivers innovative, practical solutions for infrastructure projects nationwide, prioritizing client goals while maintaining strict adherence to budget and schedule constraints. With expertise in transportation, telecommunications, municipal, educational, water resources, and healthcare sectors, we have earned recognition through prestigious awards such as the ACEC Engineering Excellence Awards.

Our commitment to technical excellence, integrity, and client satisfaction has positioned us among Engineering News-Record's Top 500 Design Firms since 2001. We provide comprehensive services from project planning to construction management, ensuring regulatory compliance and sustainable outcomes for every project.
Services
Civil Engineering Geotechnical Engineering Structural Engineering Environmental Services Land Surveying Construction Management Dam Safety Analysis Site Remediation Program Management Special Inspections
Details
  • Year established: 1986
Highlights and features
  • We have over 35 years of experience in multidisciplinary engineering services.
  • Our team includes 500+ professionals with expertise in complex infrastructure projects.
  • We provide innovative solutions for mega-projects like the World Trade Center and Tappan Zee Bridge.
  • Our firm has received multiple ACEC Engineering Excellence Awards for technical innovation.
  • We offer comprehensive services spanning planning, design, and construction management.
Associations and certifications
  • American Council of Engineering Companies (ACEC)
Services
Civil Engineering
Our civil engineering team delivers comprehensive solutions for transportation networks, water resource systems, and urban infrastructure. We specialize in roadway design, stormwater management, and regulatory compliance for public and private sector clients. Our engineers integrate sustainable practices while ensuring projects meet performance criteria and budget constraints.
Geotechnical Engineering
We provide subsurface investigations and foundation design services for complex projects in challenging geological conditions. Our expertise includes slope stabilization, seismic analysis, and ground improvement techniques. Our geotechnical team ensures structural integrity through advanced laboratory testing and field monitoring during construction phases.
Structural Engineering
Our structural engineers offer full-service design and analysis for bridges, buildings, and specialized structures. We conduct forensic assessments, seismic evaluations, and develop retrofit solutions for existing infrastructure. Our team provides construction support for temporary works and specialized fabrication requirements across diverse project types.
Environmental Services
We deliver environmental compliance solutions including NEPA/SEQRA documentation, wetland delineation, and remediation planning. Our services cover Phase I/II assessments, brownfield redevelopment, and ecological permitting. Our licensed site remediation professionals ensure projects meet federal and state environmental regulations efficiently.
Land Surveying
Our survey division provides boundary, topographic, and construction layout services using advanced LiDAR and GPS technology. We support infrastructure projects with as-built documentation, 3D modeling, and mobile mapping solutions. Our team offers FAA-compliant drone mapping for large-scale site analysis and monitoring.
People
Donald A. Benvie
Chief Executive Officer
Licensed professional engineer and geologist with extensive leadership experience in multidisciplinary engineering projects. Oversees strategic direction and operational excellence for the firm's nationwide operations.
Ayman Baki
President
Licensed professional engineer driving technical innovation and client relationship management. Focuses on expanding the firm's capabilities in transportation and infrastructure sectors.
Mark A. Stier
Chief Operating Officer
Licensed engineer managing day-to-day operations and resource optimization. Ensures delivery of high-quality engineering solutions across all project sectors.
Edward Frawley
Executive Vice President
Industry expert in site acquisition and deployment strategies. Leads nationwide project execution for telecommunications and infrastructure clients.
Theodore J. Haines
Senior Vice President
Licensed land surveyor directing survey operations. Specializes in advanced mapping technologies and construction layout services for major infrastructure projects.
Questions
What engineering disciplines does Tectonic Engineering Consultants Engineering Consultants, Geologists & Land Surveyors offer?
We provide civil, structural, geotechnical, environmental engineering services, and land surveying through 500+ licensed professionals across multiple states.
How does Tectonic Engineering Consultants Engineering Consultants, Geologists & Land Surveyors handle complex infrastructure projects?
Our multidisciplinary teams collaborate on mega-projects like the World Trade Center and Tappan Zee Bridge, using innovative solutions for challenging engineering problems.
What accreditations does Tectonic Engineering Consultants Engineering Consultants, Geologists & Land Surveyors hold?
We maintain recognition from the American Council of Engineering Companies and have been listed among ENR's Top 500 Design Firms since 2001.
Can Tectonic Engineering Consultants Engineering Consultants, Geologists & Land Surveyors assist with environmental compliance?
Our environmental team provides NEPA/SEQRA documentation, wetland delineation, and remediation planning to ensure regulatory compliance for infrastructure projects.
What construction support services are available?
We offer special inspections, materials testing, construction engineering, and resident engineering services to ensure quality control during project execution.