Public engineering firm directory

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ALLWEST Testing & Engineering

Delivering quality solutions - by providing service through integrity

Website1 credentialsUpdated Jun 2026

Service detail: Geotechnical Engineering

Service: Geotechnical EngineeringService: Environmental ConsultingService: Construction MonitoringIndustry: AerospaceIndustry: AirportsType: Environmental Engineering+25 more

Aaron Swan & Associates, Inc.

Pierre, SD

Unwavering Quality. Reliable Results.

WebsitePhone4 offices7 projects2 leadersFounded 1975Size Estimate: 10-49 employees

Project: Pierre SD Wastewater Treatment Plant

Service: Civil Design and EngineeringService: Site Master Planning and LayoutService: Underground Utilities DesignIndustry: WastewaterIndustry: EducationType: Materials Testing+31 more

Advanced Infrastructure Design, Inc.

Hamilton, NJ

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.

Website2 offices1 leadersFounded 1998Size Estimate: 10-30 employeesUpdated Jun 2026

Service detail: Pavement Engineering

Service: Pavement EngineeringService: Comprehensive Non-Destructive Field TestingService: Functional LCMS AssessmentIndustry: GovernmentIndustry: TransportationType: Civil Engineering+57 more

Alliance Technical Group

Decatur, AL

Alliance Technical Group is a full-service environmental services company founded in 2000 in Decatur, Alabama, with over 2,200 employees and more than 60 testing and laboratory locations across the United States and Canada. Alliance helps industrial, manufacturing, energy, and government clients achieve environmental compliance through on-site testing and monitoring, laboratory testing and analysis, and regulatory consulting. The company operates 110-plus mobile laboratories and delivers services across stack testing, LDAR, ambient air monitoring, CEMS, and environmental consulting.

WebsitePhone1 office4 leadersFounded 2000Updated Jun 2026

Service detail: Environmental Compliance

Service: Environmental ComplianceService: Regulatory StrategyService: Compliance AuditsIndustry: IndustrialIndustry: ChemicalsType: Environmental Engineering+19 more

Alta Environmental & Infrastructure

Tucson, AZ

Partnering to Build & Protect What Matters Most

WebsitePhone5 offices10 projects14 leaders3 credentialsSize Estimate: 250-999 employees

Project: ADOT I-10 Tucson Reconstruction

Service: Civil EngineeringService: Site Civil DesignService: Grading, Drainage & Stormwater ManagementIndustry: InfrastructureIndustry: CommercialType: Civil Engineering+30 more

Applied Technical Services

Founded in 1967, Applied Technical Services (ATS) is a nationwide testing, inspection, and certification (TIC) provider with expertise in structural engineering, forensic engineering, calibration, and materials testing. ATS serves more than 15 industries including aerospace, automotive, defense, healthcare, and manufacturing, evaluating raw materials, individual components, and complex systems through metallurgy and materials testing, chemical analysis, nondestructive testing, mechanical testing, and calibration services. ATS joined SGS, the world's leading TIC company, while continuing to operate under its own brand and service standards.

WebsiteFounded 1967Updated Jun 2026

Service detail: Calibration

Service: CalibrationService: Avionics CalibrationService: Computed TomographyIndustry: AerospaceIndustry: AutomotiveType: Structural Engineering+44 more

Athena Engineering & Environmental

Nashville, TN

Practical environmental and engineering solutions, delivered with precision and integrity.

WebsitePhone4 offices9 projects8 leaders3 credentialsUpdated Jun 2026

Project: Flood Risk Management Projects VE Study

Service: Geotechnical EngineeringService: Subsurface Exploration (Soil and Rock)Service: Foundation Design (Shallow and Deep)Industry: FederalIndustry: DefenseType: Environmental Engineering+93 more

CMT Technical Services

West Valley City, UT

CMT Technical Services is a multi-discipline engineering firm established in 1978 and headquartered in West Valley, Utah, leading the Southwest in construction materials testing, special inspection, and in-depth geotechnical engineering. With AASHTO- and A2LA-accredited laboratories, mobile field units, and ASTM-certified professionals, CMT operates across Arizona, Utah, Idaho, Colorado, and Texas to deliver construction quality control, precision land surveying, civil engineering, and environmental consulting from first stakeout through final project closeout.

WebsitePhone1 office3 projects2 credentialsFounded 1978Updated Jun 2026

Project: Salt Lake City International Airport Redevelopment Project

Service: Construction Materials Testing and Special InspectionService: Geotechnical EngineeringService: Land SurveyingIndustry: InfrastructureIndustry: Highways & RoadsType: Geotechnical Engineering+11 more

Coleman Engineering Company

Iron Mountain, MI

Professional Engineering and Surveying

WebsitePhone3 offices4 credentialsFounded 1969Size Estimate: 100-200 employeesUpdated Jun 2026

Service detail: Civil Engineering

Service: Civil EngineeringService: Road and Highway DesignService: Water Supply and Distribution SystemsIndustry: GovernmentIndustry: FederalType: Civil Engineering+70 more

Drysdale & Associates, Inc.

Cincinnati, OH

Experts in Infrared Calibration, Temperature Measurement & Engineering Solutions

WebsitePhone1 office2 credentialsUpdated Jun 2026

Service detail: Thermal Infrared Calibration Services

Service: Thermal Infrared Calibration ServicesService: In Our Lab CalibrationService: On-Site CalibrationIndustry: ManufacturingIndustry: IndustrialType: Thermal & Heat Transfer+7 more

Dulles Geotechnical and Materials Testing Services, Inc.

Chantilly, VA

Geotechnical engineering, construction inspection, materials testing, and software solutions

WebsitePhone4 offices10 projects7 credentialsFounded 2012Size Estimate: 70+ employees

Project: I-495 Express Lanes Northern Extension (I-495 NEXT)

Service: Geotechnical EngineeringService: Engineering Analysis and DesignService: Foundation DesignIndustry: Highways & RoadsIndustry: TransitType: Geotechnical Engineering+36 more

Encorus Group Engineering, P.C.

Springville, NY

Design, Build, and Sustain a Better World

WebsitePhone5 offices5 projects7 leaders4 credentialsFounded 1996

Project: West Valley Demonstration Project

Service: Engineering and Architectural DesignService: Mechanical EngineeringService: Electrical EngineeringIndustry: FederalIndustry: GovernmentType: Architecture & Engineering+46 more

Fossil Energy Research Corporation

Laguna Hills, CA

Specialists in environmental and energy technologies

WebsitePhone1 officeFounded 1984Updated Jun 2026

Service detail: Catalyst Activity Testing

Service: Catalyst Activity TestingService: Bench-Scale Activity TestingService: Micro-Scale Activity TestingIndustry: Emissions ControlIndustry: Power GenerationType: Combustion Engineering+32 more

Geotechnical Engineering-Testing, Inc.

Mobile, AL

Full-Service Geotechnical and Construction Materials Testing

WebsitePhone1 office29 projects1 credentialsFounded 1974Updated Jun 2026

Project: Welcome Center on SR-4

Service: Geotechnical EngineeringService: Foundation DesignService: Geotechnical EvaluationsIndustry: GovernmentIndustry: IndustrialType: Civil Engineering+13 more

Global Environmental

Holly, MI

Cleaner air. Safer water. Restored soil.

WebsitePhone2 officesUpdated Jun 2026

Service detail: Water Treatment and Filtration

Service: Water Treatment and FiltrationService: Treatment System Builds, Operation, and MaintenanceService: Carbon Change Outs and Spent Media DisposalIndustry: IndustrialIndustry: MiningType: Environmental Engineering+55 more

Grace Consulting Inc.

Wellington, OH

Fast, Accurate Data You Can Trust

Website4 offices4 projects3 credentialsFounded 2000Updated Jun 2026

Project: FGD Scrubber Performance Testing Program

Service: Air Emissions TestingService: Stack Testing and Emissions SamplingService: RATA & CEMS CertificationIndustry: Power GenerationIndustry: ManufacturingType: Environmental Engineering+13 more

HF Group (Houston Fearless)

Compton, CA

Mission-Ready Solutions

WebsitePhone2 offices2 leaders1 credentialsUpdated Jun 2026

Service detail: ISR Ground Support Systems

Service: ISR Ground Support SystemsService: Deployable Shelter SystemsService: Jack and Caster Mobilizer AssembliesIndustry: DefenseIndustry: FederalType: Defense Engineering+31 more

Howland Engineering and Surveying Co.

Laredo, TX

Excellence in Engineering & Surveying Since 1922

WebsitePhone3 offices11 projects3 leaders6 credentialsFounded 1922

Project: Alexander 9th Grade Center

Service: SurveyingService: ALTA SurveysService: TxDOT SurveyingIndustry: Oil & GasIndustry: Renewable EnergyType: Civil Engineering+63 more

Inberg-Miller Engineers

Riverton, WY

Serving the Rocky Mountain Region

WebsitePhone8 offices7 projects13 leaders11 credentialsFounded 1971

Project: Teton County Heater Repaving Project

Service: Civil EngineeringService: Roadway and Highway DesignService: Residential Subdivision EngineeringIndustry: CommercialIndustry: EducationType: Civil Engineering+57 more

Infrastructure Management & Engineering, Inc.

Helping clients find cost-effective solutions to complex engineering problems.

Website6 projects1 publicationsFounded 1997Updated Jun 2026

Project: Pavement Evaluation Related Research Contracts

Service: Pavement Condition Survey and ManagementService: Pavement network scanningService: Image processingIndustry: TransportationIndustry: Highways & RoadsType: Civil Engineering+21 more

MEA Forensic Engineers & Scientists

Richmond, BC

providing the answers central to your case

WebsitePhone3 offices8 projects26 leaders5 publicationsUpdated Jun 2026

Project: Using computer simulations to assess seatbelt effectiveness during a rollover

Service: Aviation InvestigationsService: Operational & Procedural EvaluationService: Design, Manufacturing & Maintenance Defect AnalysisIndustry: TransportationIndustry: AviationType: Aviation Engineering+26 more

Mantaro Networks Inc

Germantown, MD

Your Partner in Engineering

WebsitePhone1 office3 projectsUpdated Jun 2026

Project: Custom Heatsink for UGV RF Amplifier

Service: Software DevelopmentService: Embedded Software DevelopmentService: Application DevelopmentIndustry: DefenseIndustry: TelecommunicationsType: Electrical Engineering+33 more

Precise Systems

Lexington Park, MD

Purpose Built. Mission Focused. Results Delivered.

Website1 office2 leaders1 credentialsUpdated Jun 2026

Service detail: Advanced Engineering

Service: Advanced EngineeringService: Model-Based Systems Engineering (MBSE)Service: Open Systems Architecture (OSA)Industry: DefenseIndustry: AerospaceType: Defense Engineering+38 more

Quality Testing and Engineering, Inc.

O'Fallon, IL

Premier Construction Testing and Engineering in the St. Louis Metro Area and Southern Illinois

WebsitePhone2 offices5 leaders1 credentialsFounded 2000Updated Jun 2026

Service detail: Construction Materials Testing

Service: Construction Materials TestingService: Strength TestingService: Field Quality ControlIndustry: CommercialIndustry: EducationType: Geotechnical Engineering+38 more