Public engineering firm directory

Find engineering consulting firms by capability and location.

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Agarabi Engineering PLLC

New York, NY

Energy efficiency engineering and clean energy design for the built environment

WebsitePhone1 office3 projects2 leaders6 credentialsFounded 2014

Project: Domestic Hot Water and Pool Heating Systems Replacement Design

Service: MEP & Enclosure DesignService: Air-Source Heat Pump DesignService: Domestic Hot Water System DesignIndustry: Multifamily ResidentialIndustry: Affordable HousingType: Mechanical Engineering+30 more

Air Resource Specialists, Inc.

Fort Collins, CO

A leader in the field of air quality for over 40 years.

Website1 office8 projects1 leaders2 credentials3 publicationsSize Estimate: 35 employees

Project: National Park Service Air Quality Conditions & Trends Website

Service: Air MonitoringService: Criteria Pollutants MonitoringService: Toxics & Hazardous Air PollutantsIndustry: GovernmentIndustry: FederalType: Environmental Engineering+33 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

Barr Engineering Co.

Minneapolis, MN

Designing What's Next

WebsitePhone18 offices6 projects1 leaders1 credentials1 publications

Project: Utility-Scale BESS Engineering and Design

Service: Engineering and DesignService: Mine Tailings Management EngineeringService: Mineral Processing and Plant DesignIndustry: MiningIndustry: Power GenerationType: Civil Engineering+34 more

Cerjan Acoustics

Westminster, CO

Industrial Noise & Vibration Solutions: Expert Acoustic Consultation

WebsitePhone2 offices2 leaders2 credentialsFounded 2017Size Estimate: 1-9 employees

Service detail: Noise Measurements

Service: Noise MeasurementsService: Short and Long-Term MonitoringService: System Level DefinitionIndustry: Renewable EnergyIndustry: MiningType: Acoustic Consulting+25 more

Electronics Service, Inc.

Wilmington, DE

Putting RF Where It Belongs

WebsitePhone1 office4 credentialsUpdated Jun 2026

Service detail: E3 Systems Integration & Integrated Topside Design

Service: E3 Systems Integration & Integrated Topside DesignService: Requirements and compliance reviewService: Systems and subsystems disposition evaluationIndustry: DefenseIndustry: FederalType: Telecom / RF Engineering+56 more

GHG Engineering, LLC

Turning Location and Environmental Complexity into Clarity

Website1 credentialsUpdated Jun 2026

Service detail: Sustainability Engineering

Service: Sustainability EngineeringService: Industrial Water Sustainability & Stormwater Pollution Prevention ProgramsService: Energy & Carbon Footprint Reduction ProjectsIndustry: SolarIndustry: Renewable EnergyType: Environmental Engineering+24 more

Impulse Controls Operations and Maintenance Inc.

North Salt Lake, UT

Your Partner for Customized Automation Solutions

WebsitePhone1 officeUpdated Jun 2026

Service detail: Controls Design & Engineering

Service: Controls Design & EngineeringService: PLC ProgrammingService: Control System EvaluationIndustry: Oil & GasIndustry: PetrochemicalType: Automation & Controls+34 more

InteliOPT, Inc.

Superior Quality and Value Telecom & IT Services Company

WebsiteFounded 2008Updated Jun 2026

Service detail: Distributed Antenna Systems (DAS) & Small Cell Solutions

Service: Distributed Antenna Systems (DAS) & Small Cell SolutionsService: i-DAS & o-DAS Site SurveysService: System Design & IntegrationIndustry: TelecommunicationsIndustry: Public SafetyType: Telecom / RF Engineering+29 more

Kilowatt Engineering Inc

Exceed Your Energy Targets

Website2 projects1 publicationsUpdated Jun 2026

Project: Rocky Mountain Power WattSmart Program Delivery

Service: CommissioningService: New Construction CommissioningService: Retro-CommissioningIndustry: CommercialIndustry: EducationType: Electrical Engineering+22 more

Matrix Engineering

Paducah, KY

Engineering Excellence Since 1995

WebsitePhone1 office15 projects2 leaders1 credentialsFounded 1995

Project: 6000HP Twin Engine Towboat TUGMONITOR System

Service: Bulk Material Handling SystemsService: Pneumatic and Vacuum ConveyingService: Drum Packaging and FillingIndustry: ChemicalsIndustry: Pulp & PaperType: Automation & Controls+31 more

Puloli Inc

San Francisco, CA

Trusted Data. Zero Guesswork.

Website2 offices2 leadersUpdated Jun 2026

Service detail: Continuous Monitoring

Service: Continuous MonitoringService: Industry-Wide Continuous MonitoringService: On-Site Continuous MonitoringIndustry: Oil & GasIndustry: Emissions ControlType: Automation & Controls+1 more

RTP Environmental Associates, Inc.

Westbury, NY

Full-service environmental consulting for complex technical and regulatory challenges.

Website1 office3 credentialsUpdated Jun 2026

Service detail: Air Permitting and Compliance

Service: Air Permitting and ComplianceService: Title V and PSD PermittingService: Compliance Audits and ProgramsIndustry: Environmental & RemediationIndustry: Emissions ControlType: Environmental Engineering+19 more

SCS Engineers

Long Beach, CA

At the forefront of sustainable environmental solutions for over 56 years.

WebsitePhone2 offices9 projects3 leaders16 credentials6 publications

Project: Casa Ramona Remediation

Service: Solid Waste ManagementService: Landfill Permitting and EngineeringService: Materials Recovery Facility OptimizationIndustry: Waste ManagementIndustry: GovernmentType: Environmental Engineering+44 more

TRICORD Consulting

Frisco, TX

We've Got Air Quality Covered

WebsitePhone7 offices6 leadersSize Estimate: 50-99 employeesUpdated Jun 2026

Service detail: Air Quality Permitting

Service: Air Quality PermittingService: Air Quality Regulatory Compliance AnalysisService: Control Technology AnalysisIndustry: Oil & GasIndustry: PetrochemicalType: Environmental Engineering+25 more

Western Environmental Services and Testing, Inc.

Casper, WY

Leaders in Environmental Compliance & Testing

WebsitePhone2 officesFounded 1978Updated Jun 2026

Service detail: Compliance Testing

Service: Compliance TestingService: Permit Compliance TestingService: Particulate TestingIndustry: Oil & GasIndustry: MiningType: Emissions Control+14 more