structural engineering

Datum Rios, LLC is a structural engineering firm headquartered in San Antonio, Texas, established in 2014. The firm provides comprehensive structural engineering services for building projects and is registered with the State of Texas as a Historically Underutilized Business (HUB) and holds MBE certifications with the SCTRCA, NCTRCA, and the City of Austin.

condition assessment and repairsexpert testimonyfeasibility studiesforensicsmaster planningpeer reviewsstructural analysisStructural Designvalue engineeringvibration analysis

Exceptional Engineering. Innovative Construction Services. Dedicated to Safety. We engineer the foundations of thriving communities. David Mason + Associates has delivered exceptional engineering and innovative construction services since 1989. We bring technical excellence, creative problem‑solving, and proactive communication to deliver solutions that stand up to real‑world complexity. With offices across St. Louis, Chicago, Philadelphia, Tampa Bay, Indianapolis, and Cleveland, our licensed professionals bring the experience and craftsmanship that clients trust.As a certified MBE, DMA provides comprehensive engineering and construction‑related services—from civil and structural engineering to surveying, utilities, and field services—supporting healthcare, education, transportation, water, and public infrastructure projects. See our project work We work efficiently so your projects.

3D scanningCCTV inspectioncivil engineeringconstruction administrationElectrical Substation Designhydro excavationSewer cleaningsite developmentstormwater managementsurveying

D&B Engineers and Architects (D&B) is a multidiscipline engineering, environmental and architectural firm founded in 1965. It provides engineering solutions in sustainable, environmentally acceptable, cost-conscious applications, serving public and private clients in multiple states from seven regional offices with over 250 professional employees.

architectureBuilding Information Modeling (BIM)civil engineeringconstruction managementdesign-buildElectrical Engineeringenergy engineeringenvironmental investigation and remediationGISwastewater managementwater supply

DB Sterlin Consultants, Inc. is a Chicago-based multidisciplinary engineering firm providing infrastructure solutions throughout the Midwest. Founded in 1997 by Reynold Sterlin, PE, and led by President Regine Jeune, the firm serves transportation, municipal, and utility projects across Illinois and Wisconsin. It is a minority-owned firm certified as MBE, DBE, and WBE, and is pre-qualified by IDOT in numerous areas.

civil engineeringconstruction engineeringconstruction inspectionElectrical EngineeringHydraulic and Drainage Studiesland surveyingprogram managementroadway planningSubsurface utility engineeringtraffic signal designutilities engineeringutility coordinationWater resources engineering

DC Engineering is an engineering firm whose stated purpose is enriching the lives of people through engineering and other services. It provides electrical, mechanical, structural, controls, refrigeration, commissioning, and energy services, and serves markets including retail, industrial, commercial, and government. Subsidiary companies provide UL 508A controls panels, instrumentation, refrigerant consulting/training, and IT/OT managed and cloud services.

commissioningcontrolsElectrical Engineeringenergy auditsEnergy ModelingIT/OT solutionsmeasurement and verificationMechanical EngineeringrefrigerationUL 508A controls panels

Dearborn is an experienced engineering and NDE firm providing innovative, safe solutions for the construction industry's most complex and critical heavy lift problems. With 70+ years of creating field-proven solutions, it is internationally recognized for heavy lift and load movement, rigging, specialized project cargo (OS/OW) transportation, and construction engineering, delivering mission-critical projects worldwide on time and within budget.

3D documentation3D mappingcivil engineeringconstruction engineeringengineered lift planningground condition surveysground stabilization designheavy lift engineeringload movementOS/OW transportationriggingroute clearance surveysshoring and scaffolding designsteel erection engineeringstructural demolition engineeringthird-party lift planning reviewtower crane foundation design

DECON LLC is a consulting engineering firm committed to technical excellence that helps build, maintain and improve clients' infrastructure and facilities. It delivers structural and civil engineering services with a goal of completing projects on schedule, within budget, and with outstanding quality. The firm is a certified minority-owned engineering firm and serves clients including state departments of transportation and toll road authorities.

bridge designcivil engineeringconstruction engineeringroadway/drainage engineering

Degenkolb is a full-service structural engineering firm that addresses every project from the first conceptual phases through opening day. The firm designs and constructs hospitals, schools, workplaces, houses of worship, performance centers, and other buildings that form the fabric of community life, with a focus on resilient engineering.

construction engineeringforensicsseismic engineeringStructural Design

Dekker is a full-service, multidisciplinary architecture and design firm with offices in Albuquerque, El Paso, and Phoenix. With over 65 years of experience in architecture, interior design, landscape architecture, planning, sustainability, and structural engineering, Dekker offers design expertise across the country. It is a 100% employee-owned firm, formed in 1998 when Dekker Perich & Associates and Holmes Sabatini & Associates merged.

architectureDesign/Build ManagementInterior DesignLandscape ArchitecturePlanningSustainability

DelTorre Engineering LLC is a civil engineering consulting firm based in Puerto Rico that provides innovative and dependable civil engineering solutions tailored to each client's needs. The firm offers construction management, governmental services, engineering consulting, project management, and design services, and holds WOSB and MBE certifications.

construction managementdesign servicesdrainage designengineering consultingH&H analysisland developmentproject managementPS&E preparationtransportation engineeringutilities design

Delon Hampton & Associates, Chartered is a professional engineering and consulting firm founded in 1973, specializing in civil and structural engineering as well as program and construction management services. It is one of the longest operating minority-owned businesses in the design and construction industry. The firm is headquartered in Washington, DC, with offices in Largo, Silver Spring and Baltimore, Maryland, and Atlanta, GA, and maintains a staff of 65 professionals.

civil engineeringconstruction managementprogram management

The Roxbury at Stratton Falls The-Agency-Five-South-College-Drive-drone-still The Agency Business Center at Five South College Drive Learn More Upper Lisle Road over Otselic River Historic Truss Bridge Upper Lisle Road over Otselic River Historic Truss Bridge Working with Our Municipal Partners to Preserve Our Local Infrastructure J. Caleb Boggs Federal Courthouse RenovationsJ. Caleb Boggs Federal Courthouse Renovations Wilmington, DELe Moyne College High Definition Laser Scanning & Campus Mapping Le Moyne College High Definition Laser Scanning & Campus Mapping Learn More Major League Baseball Tension Netting Systems Specialized Structural Engineering for Tension Netting Systemsfor our Industry Partners and Major League Baseball Learn More National Cybersecurity Center of Excellence Program of Requirements National Cybersecurity Center of Excellence Program of Requirements Learn More.

architectural designasbestos assessmentsBIM/Revit modelingconstruction administrationElectrical Engineeringfire protection designland survey and mappinglaser scanningMechanical Engineeringparking garage inspectionplumbing designwetland delineation

Denali Engineering Services is a multi-disciplinary engineering firm offering integrated engineering solutions across HVAC, process, machine design, structural, electrical, and I&C engineering. The firm serves industries including nuclear, MEP, manufacturing, fuels, energy, water treatment, and environmental, pairing modern digital workflows with engineering discipline to deliver efficient, compliant, and scalable solutions.

3D Modelingcomputational fluid dynamicscondition assessmentDCS programmingElectrical Engineeringfield engineeringfinite element analysisHVAC system designI&C engineeringmachine designnuclear engineeringpiping system layoutPLC programmingpressure vessel designprocess engineeringwater treatment system design

Denzay A&E is a Limited Liability Company established in 2012 providing architectural and engineering services, including design to technical document preparation, on-site quality assurance, and consultancy services for construction projects for national and international clients in more than 30 countries. Clients include NSPA, Embassies of the United States of America, USACE, World Bank, UNDP, UNICEF, UNHCR, and M.O.D. of countries worldwide.

A&E designBIMblast-resistant structuresdesign supervisionenvironmental studiesfire protectionmaterial testingMEPPV solar energy systemsQA/QC inspectionsquality management system auditsshop drawing approvalssite supervision

Design Alaska is a multi-disciplinary architecture and engineering firm founded in 1957 and based in Fairbanks, Alaska. It is the largest full-service architectural and engineering firm in Interior Alaska, with 50+ employees and in-house registered professionals in architecture, engineering, landscape architecture, and land surveying. The firm has planned, designed, and constructed urban and rural facilities in Alaska for over 65 years.

architecturecadastral surveyscivil engineeringconstruction supportcontrol surveyscontrol systems engineeringElectrical Engineeringengineering surveysenvironmental engineeringFire protection engineeringGPS surveysLandscape Architectureland surveyingMechanical Engineeringplanning and designtopographic surveys

DRG Architects is a regional, award-winning architectural design firm with over 60 years of experience providing architecture and design services in PK-12 Education, Higher Education, Apartment & Mixed-Use, and Government markets across the Tristate area. The firm emphasizes listening, collaboration, and creating spaces that fulfill functional needs and enhance quality of life. It has offices in Somerset NJ, Manhattan, Philadelphia, and Camp Hill PA, and acquired Vitetta in 2025.

3D Modelingarchitectural designBIMcivil engineeringcommissioningconstruction administrationHistoric PreservationInterior DesignLandscape ArchitectureLEED designmaster planningWELL Building Design

Founded in 1973, DESMAN is a national firm specializing in parking consulting, design, planning and restoration. It designs functionally efficient, attractive and cost-effective parking solutions, with nine offices and about 100 employees, and has completed over 5,000 parking projects in the United States and overseas.

architecturematerial testing and evaluationparking consultingparking designparking planningparking restorationSustainable Design

Devco Engineering, Inc. is a full-service civil and structural engineering firm providing design and construction management services for private and public sector clients since 1969. The company is employee-owned and has worked on over 3,000 projects nationwide, with offices in Corvallis and Enterprise, Oregon, and Bozeman, Montana.

BIMcivil engineeringcold-formed steel designconstructability reviewsconstruction managementdraftinghistorical retrofitsseismic retrofitsshop drawingsvalue engineering

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 designgeotechnical engineeringgradingground improvementpavement designpile drivingseismic evaluationssite designslope stability modelingthermal analysesUtility Design

DeWolfe Engineering Associates, PC is a twelve-person civil and structural engineering firm located in Montpelier, Vermont. Founded in 1989 by Richard S. DeWolfe, P.E. as a sole proprietorship and incorporated in July 1996, the firm provides civil, structural, and construction engineering services along with permitting assistance for industrial and commercial clients.

civil engineeringconstruction engineeringfailure investigationhighway designinspection servicesintersection evaluationpermittingshoring designsite engineering

DFL Design + Build is a full-service design-build contractor serving Los Angeles County, Orange County, and the Inland Empire. The company manages the entire construction process under one roof, from architectural design, planning, and permitting to full project build-out, for residential projects including new home builds, ADUs, additions, and remodels.

architectural designconcrete foundationsdesign-build constructionpermittingPlanningproject managementresidential constructionstructural work

DG3A Design Group, PSC is an engineering and architectural firm based in San Juan, Puerto Rico, established in 1997. It specializes in design and project management services, delivering creative, practical solutions completed on time and within budget, with a commitment to quality and collaboration from concept to completion.

architectural designcivil engineeringconsultingearthworksElectrical EngineeringMechanical Engineeringproject managementroad and highway designsite developmentstormwater managementwater and wastewater systems

Dhillon Engineering Inc. (DEI) provides civil and structural engineering, site development, and construction management services across Maryland and the Mid-Atlantic.

civil engineeringconstruction managementsite development

Diablo Engineering Group is a professional engineering firm based in Oakland, California, providing civil engineering design, transportation planning, structural engineering, and technical project management services to clients throughout the San Francisco Bay Area. The firm serves local cities, counties, and transportation/transit agencies, and also provides civil engineering support services to large engineering firms. It is a Certified DBE and Oakland/Alameda County Small Local Business Enterprise.

ADA-compliant curb ramp designcivil engineering designcondition assessmentsconstructability reviewsconstruction managementgrading plansproject managementtransportation planningutility coordination