geotechnical engineering

Create Foundations For the Future. Learn More A client-focused provider of consulting engineering services. Since the founding of the firm in 1956, we have provided engineering, scientific and construction-related services to industrial and governmental clients in the U.S. and in many foreign countries. Our core capabilities include civil and geotechnical engineering, geology, and hydrology and hydraulics. WE PARTNER WITH OUR CLIENTS TO ADDRESS THE MOST COMPLEX CHALLENGES Learn More Contact Us MARKETS WE SERVE Industrial & Commercial Site Development Dams & Waterways Healthcare and Education Recreation Transportation Government Mining Energy & Utilities Research & Training Professional Memberships READY TO GET STARTED? To get started on your next project, call us today! Contact Us

civil engineeringconsultingenvironmental engineeringgeologyhydrology and hydraulics

DDS ENGINEERING, PLLC is the oldest continually operated engineering firm in Bowling Green, Kentucky, now in its 52nd year. It offers land surveying, 3D laser scanning, aerial mapping, civil and geotechnical engineering, construction materials testing, special inspection services, and custom services such as document preservation, serving the public sector, private developers, and government agencies.

3D laser scanningadvanced visualizationsaerial mappingcivil engineeringconstruction materials testingdocument preservationland surveyingspecial inspectionsstorm water infrastructure inspection

Devise Engineering, Inc. is a proudly Alaskan-owned engineering firm founded in February 2024 by Nick Choromanski, Steven Halcomb, and Jesse Gobeli. Based in Anchorage, Alaska, the firm specializes in structural, civil, and geotechnical engineering services tailored to Alaska's diverse environments, and also offers construction management.

civil engineeringconstruction managementdrainagefoundation designgradingground improvementpavement designpile drivingseismic evaluationssite designslope stability modelingstructural engineeringthermal analysesUtility Design

DHDC Engineering Consulting Services, Inc. (DHDC) is a DBE, MBE, EDGE, SBE, LEDE engineering consulting firm headquartered in Columbus, Ohio, with offices in Middletown and Cleveland (TP), Ohio. It specializes in Geotechnical Engineering, Construction Materials Testing, Special Inspections, Subsurface Utilities Engineering and Environmental Engineering services, serving the Midwest and beyond.

asphalt mix designconcrete mix designsconstruction materials testingdrillingGeotechnical laboratory testingground penetrating radar (GPR)hydro vacuum/air knife excavationsoil boringsspecial inspectionsSubsurface utility engineeringweld inspections

Diaz•Yourman & Associates (DYA) is a privately-held geotechnical consulting services corporation, founded in December 1992 on the strong basis of 30 years prior Geotechnical Engineering experience. The firm provides geotechnical consulting for projects including highways, bridges, tunnels, airports, ports, water infrastructure, rail and transit, and environmental work.

design/buildhazardous waste studiesSite assessments

Distinct Engineering Solutions, Inc is a civil engineering consulting firm serving New York, New Jersey, Connecticut, and Pennsylvania. It specializes in Site Civil, Geotechnical, Environmental Engineering, Construction Inspections, and Project Support. The firm is registered as professional engineers in New Jersey, New York, Pennsylvania, and Connecticut, and describes itself as a small, minority, quality conscientious business enterprise.

civil engineeringConstruction Qualitydesign-bid-builddesign-buildEnvironmental Investigation & RemediationGeo-Structural ConsultingHazmat & OSHA Compliance ConsultingNoise & Air ConsultingSite Civil and Permittingspecial inspectionVibration monitoring

Divis Consulting was formed in 2004 to provide project management, geotechnical engineering, construction observation, and subsurface investigation services to the San Francisco Bay Area. Incorporated in 2007, it is registered as a Micro Local Business Enterprise (LBE) with the City of San Francisco since 2008.

construction observationengineering analysisfinite element analysislaboratory testing programsproject managementsubsurface investigation

Specialized Engineering is an employee-owned engineering consulting firm founded in 1992 that provides engineering consulting services and special inspections for public and private sector clients in DC, Delaware, Maryland, Pennsylvania, Virginia, and West Virginia. With over 95 engineers, geologists, scientists, field and laboratory technicians, construction managers, and inspectors, it offers services from initial site selection through construction. Laboratories are located in Frederick, MD and Hanover, MD.

Air track drilling and rock probesconstruction managementconstruction materials testingenvironmental consultingForensic engineeringFoundation and pavement recommendationsHollow stem and mud rotary drillinginspectionlaboratory testing and analysisPressure meter testingSlope stability evaluationsubsurface explorationWeb-based reporting

DLZ is an award-winning architecture, engineering, surveying, and construction services firm with over 100 years of experience and over 900 people in 30 offices. It is a certified Minority Business Enterprise and a graduate of the Federal 8(a) Business Development Program, serving public and private clients across the nation.

architectureconstruction managementdesign-builddrillingengineeringEnvironmental RemediationHigh Definition Laser Scanninghydrographic surveyingland surveyingLEED certificationmaterials testingsurveyingUnmanned Aircraft Systems

DMY Capitol, LLC (DMY) is a transdisciplinary engineering firm based in Washington, DC, delivering consulting, testing and inspection services that span the entire life cycle of a building. It is a minority-owned small business certified as a Certified Business Enterprise (CBE) by the DC Department of Small and Local Business Development, with offices in DuPont Circle at 2141 P Street NW, Suite 107.

building enclosure servicesconstruction managementdrillingenvironmental investigationsmaterials testingrock coringspecial inspectionsthird party inspections

D.W. Kozera, Inc. is a certified WBE small business established in Maryland in 1995 that provides geotechnical consulting for public, institutional, and private projects, having completed over 3,500 projects. The firm provides accurate geologic interpretation of subsurface site conditions, applies soil mechanics and practical construction techniques, and delivers cost-effective foundation solutions.

construction testingdesign-buildexcavation supportground improvementinstrumentation and monitoringshallow and deep foundationswaterfront services

Dynamic Engineering Consultants, PC provides comprehensive professional engineering and consulting services throughout the United States, with offices in New Jersey, Pennsylvania, Maryland, Florida, Texas, Delaware, and North Carolina. Its family of companies includes Dynamic Earth (geotechnical and environmental services), Dynamic Survey (land and marine surveying), and Dynamic Traffic (transportation engineering and planning). The firm was incorporated in 2003 and opened for business on April 1, 2004.

ADA/PROWAG accessibility designconstruction inspectionsconstruction managementEnvironmental consulting and remediationerosion control planninggrading and earthwork designHighway/roadway wideningLand and marine surveyingpermitting and entitlementsProfessional planningsite civil engineeringstormwater managementstructural engineeringTraffic and transportation engineeringtraffic impact studies

DYWIDAG provides engineering products and solutions for infrastructure including bridges, tunnels, dams, and high-rises. Founded in 1865 by Eugen Dyckerhoff and Gottlieb Widmann, the company offers systems for geotechnical, post-tensioning, stay cables, and concrete technologies, along with monitoring and strengthening services to make structures safer, stronger, and smarter.

inspection & testinginstallationmaintenancemonitoringpost-tensioningstay cablesstrengthening

Earth Design Associates, Inc. (EDA) is a full service consulting engineering firm providing geotechnical, civil, environmental, and natural resource management expertise on projects across the country and across the globe. EDA is a Certified DBE/MBE firm in NY and CT and HUBZone Certified, led by founding principal Dr. Ignatius O. Okonkwo, a licensed Professional Engineer and Professional Geologist.

civil engineeringcomputer aided designconstruction managementEnvironmental Servicesfield inspectionowner's representationpetroleum reservoir characterizationWater resources engineering

ETTL Engineers & Consultants Inc. provides geotechnical engineering and testing, construction materials engineering and testing, geotechnical and environmental drilling services, environmental consulting, and CQC/CQA services for landfill liners and final cover systems. Founded in 1965 in Tyler, Texas, the company serves industrial, commercial, governmental, and private clients in Texas and adjoining regions with offices in Tyler, Texarkana, Central Texas, and DFW.

construction materials testingdrillingenvironmental site assessmentsexpert witness testimonyForensic investigationsgroundwater monitoring well and piezometer installationlaboratory and field soil testinglandfill CQC and CQAremediationsoil and rock core samplingsteel testing including welds and welders

EBA Engineering, Inc. is a multidisciplinary engineering firm headquartered in Laurel, Maryland, with offices in Maryland, Pennsylvania, Virginia, and Washington, DC. The firm provides engineering, construction management and inspection, materials testing, and related services to public and private clients, and is MBE certified.

BIM modelingconstruction management and inspectiondrillingGISlaboratory testingmaterials testingstructural engineeringSubsurface utility engineeringsurveying

Edge Consulting Engineers, Inc. was founded in 2002 and has grown to a firm of over 70 professionals at two offices. Headquartered in Prairie du Sac, Wisconsin, with a branch office in Burnsville, Minnesota, the firm provides professional engineering and technical services to clients throughout the United States, with nearly all work being repeat business.

civil engineeringconstruction management and inspectionCultural Resourcesenvironmental complianceLandscape ArchitectureSolar Inspectionstormwater managementstructural engineeringSurveying and mappingtelecommunications engineeringtower climbingTower Maintenance and InspectionUAS/Drone Services

Edgewater Resources is a design and engineering consultancy based in the United States focused on mixed-use waterfront developments, marinas, coastal improvements, and harbor works. Its team practices architecture, planning, landscape architecture, development finance, and marine, civil, coastal, geotechnical, mechanical, and structural engineering, working as a single integrated team across offices in Michigan, Washington, Wisconsin, Illinois, New York, North Carolina, Canada, and South America.

architecturecivil engineeringcoastal engineeringdevelopment financedock, utility and facility designLandscape Architecturemarine engineeringMechanical Engineeringstructural engineeringwaterfront planningWave modeling

EGSci Consulting Inc. is an Atlanta-based firm that specializes in providing geotechnical engineering, geophysics services, environmental services, and non-destructive testing (NDT) throughout the US. The company takes a collaborative approach, working closely with clients to understand their needs and goals and providing project-specific solutions and deliverables.

construction supportengineering analysesfield investigationsgeophysical servicesnon-destructive testingPhase I and Phase II Environmental Site Assessments

ELAXiOM is a multi-disciplinary engineering firm providing full-service geotechnical engineering, geological services, soil and material testing, and special inspection services. Its staff of professional engineers, geologists and technicians have decades of experience serving a wide variety of industries, using a multi-facet approach to problem solving to deliver cost-effective, practical solutions.

concrete and aggregate testingdrilling and testinggeophysical non-destructive surveymaterial testingspecial inspectionunmanned aircraft systems/drones

E.L. Robinson Engineering is a diversified civil engineering and planning firm founded in 1978 by Edward L. Robinson, P.E., P.S. It began as a small surveying firm with four employees and has grown to nearly 200 full-time professionals, with offices in West Virginia, Ohio, and Kentucky. The firm provides a full range of engineering services from planning and analysis to design-build and implementation.

bridge designcivil engineeringconstruction engineering & inspectionconstruction managementdesign-buildfinite element analysisland planningLandscape ArchitectureQA/QC materials testingsite developmentstructural engineeringsurveyingtransportation engineeringutility engineeringvalue engineering

EMC Engineering, LLC is an employee-owned and operated civil consulting firm established in 2002 and based in south-central Alaska. It provides construction administration, civil engineering, quality control management, constructability review, materials testing, special inspection, geotechnical engineering, and SWPPP consulting. EMC operates a full-service AASHTO-accredited laboratory in Palmer and a full-service laboratory in Anchorage, plus remote locations throughout Alaska.

AASHTO-accredited laboratory testingasphalt mix designcivil engineeringconcrete mix designconstruction administrationmaterials testingNACE coating inspectionsNDT Level IIspecial inspectionSWPPP consultingwelding inspection

Endeavor Professional Services, LLC is an engineering and design firm focused on serving the energy and utility industry, with its office centrally located in State College, PA. The team brings over 40 years of engineering, regulatory permitting, and related professional service experience, serving operators in the Marcellus and Utica Shale plays across PA, OH, and WV.

aquifer test data analysisborehole geophysical loggingCBR testingcivil engineeringdownhole video inspectionGNSS RTK surveyground modification designgroundwater samplinghydrogeologic consultingregulatory permittingrobotic total station surveyslope stability analysissurveyingterrestrial laser scanningUAV LiDARUAV photogrammetry

EnGEN Corporation is a Service Disabled Veteran Small Business geotechnical engineering firm based in Temecula, California, proudly serving the Southern California community since 1993. It is a full-service geotechnical and geo-environmental firm providing professional quality assurance testing and inspection services for residential, commercial, and government projects.

3rd party observation and testingCaltrans certified laboratory testingcompaction testingdeputy inspectionsfault investigation and mappinggeo-environmental consultinggeophysical mappingmaterials testingpercolation testingquality control samplingseptic system designslope stability analysis