Public engineering firm directory

Find engineering consulting firms by capability and location.

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AMG, Inc.

Dayton, OH

Industrial Facility Engineering

WebsitePhone1 office12 projects1 leaders2 credentials2 publications

Project: Calcium Carbonate Production Plant

Service: Process EngineeringService: PFD and P&ID DevelopmentService: Material and Energy Balance SimulationIndustry: ChemicalsIndustry: Food & BeverageType: Automation & Controls+73 more

Autologic LLC

North Chesterfield, VA

Electrical and Controls Engineering, Design, & Programming Services

WebsitePhone2 offices4 projects5 leaders2 credentialsFounded 2001

Project: Fiberight BioFuel Recycling Facility - Turnkey Control System

Service: Electrical and Controls EngineeringService: Electrical DesignService: Control Panel DesignIndustry: MiningIndustry: Power GenerationType: Automation & Controls+45 more

Design Tree

Alexandria, MN

Our Roots. Your Growth.

WebsitePhone1 office14 projects9 leadersUpdated Jun 2026

Project: Rogers Indoor Turf Facility / HealthPartners Fieldhouse

Service: Civil EngineeringService: Applications for funding agenciesService: Site layout and grading designIndustry: EducationIndustry: GovernmentType: Civil Engineering+53 more

Equagen Engineers PLLC

Raleigh, NC

Engineering by Ingenuity

Website1 office2 credentialsSize Estimate: 51-200 employeesUpdated Jun 2026

Service detail: Substation Engineering

Service: Substation EngineeringService: Feasibility StudiesService: Site Selection and EvaluationIndustry: Power Transmission & DistributionIndustry: Renewable EnergyType: Power & Utility Engineering+54 more

Gliasis

Piscataway, NJ

Intelligent Engineering Solution

WebsitePhone1 officeFounded 2021Updated Jun 2026

Service detail: Engineering and Design

Service: Engineering and DesignService: Detailed EngineeringService: Planning and Construction SupportIndustry: Power GenerationIndustry: ChemicalsType: Process Engineering+28 more

H & J International, PC

Philadelphia, PA

Knowledge-Based Engineers & Management Consultants

WebsitePhone3 offices3 leadersFounded 2002Size Estimate: 30+ employeesUpdated Jun 2026

Service detail: Transportation Engineering

Service: Transportation EngineeringService: Bridge DesignService: Roadway and Highway DesignIndustry: TransportationIndustry: BridgesType: Civil Engineering+19 more

Isaiah Engineering, Inc.

Mobile, AL

Building the Future

WebsitePhone1 officeFounded 2003Size Estimate: 1-25 employeesUpdated Jun 2026

Service detail: Construction Management

Service: Construction ManagementService: Construction Cost Estimating and Cost ControlService: Project Planning and SchedulingIndustry: FederalIndustry: GovernmentType: Automation & Controls+58 more

LDIS, LLC

Arvada, CO

Engineering Solutions Tailored to You

WebsitePhone1 office8 projects5 leadersFounded 2003Updated Jun 2026

Project: Large Scale Amine Carbon Capture and CO2 Sequestration Facility

Service: Construction ManagementService: ProcurementService: SourcingIndustry: ChemicalsIndustry: MiningType: Automation & Controls+63 more

MARLIN Engineering

Palmetto Bay, FL

Transforming Communities via Expertise, Innovation and Commitment

Website1 office9 projects9 credentialsFounded 1991Size Estimate: 10-50 employeesUpdated Jun 2026

Project: Krome Avenue Vision Zero Reconstruction

Service: Roadway DesignService: Complete Streets DesignService: Construction ManagementIndustry: GovernmentIndustry: TransportationType: Land Surveying+22 more

Maida Engineering, Inc.

Philadelphia, PA

Service oriented, project driven success.

WebsitePhone2 offices1 projects1 leaders3 credentialsFounded 1978

Project: 19,000 HP Synchronous Motor Replacement

Service: Power System AnalysesService: Reliability & Load Flow StudiesService: Short Circuit Calculations & TCC Coordination StudiesIndustry: IndustrialIndustry: CommercialType: Electrical Engineering+47 more

Prudent Engineering, LLP

East Syracuse, NY

Transforming Infrastructure with Passion and Kindness

WebsitePhone1 office12 projects3 leaders6 credentialsSize Estimate: 25-50 employees

Project: Court Street Dam Rehabilitation Engineer of Record Services

Service: Bridge and Structural DesignService: Superstructure and Substructure DesignsService: Water Control Structure DesignsIndustry: GovernmentIndustry: TransportationType: Civil Engineering+52 more

Robinson Engineering, Ltd.

Frankfort, IL

Beyond Engineering

WebsitePhone1 office14 projectsFounded 1937Size Estimate: 100-499 employeesUpdated Jun 2026

Project: Downtown Streetscape

Service: Municipal EngineeringService: Infrastructure Master PlanningService: Financing & Grant AssistanceIndustry: GovernmentIndustry: TransportationType: Civil Engineering+50 more

Shah & Associates, Inc.

Gaithersburg, MD

Providing Innovative Solutions to Complex Problems for Over 40 Years

WebsitePhone1 office13 projectsFounded 1977Size Estimate: 20-75 employeesUpdated Jun 2026

Project: Washington Suburban Sanitary Commission Electrical Engineering

Service: Electrical Engineering DesignService: Building electrical systems designService: Distribution systems designIndustry: WastewaterIndustry: Water SupplyType: Automation & Controls+62 more

Trotter and Associates, Inc.

St. Charles, IL

Civil Engineering and Design for Municipal and Public Projects

WebsitePhone1 office6 projects1 credentialsUpdated Jun 2026

Project: Well No. 8 Water Treatment Plant Rehabilitation

Service: Civil Engineering DesignService: Water Distribution SystemsService: Sanitary Collection SystemsIndustry: GovernmentIndustry: Water SupplyType: Civil Engineering+50 more

Wilson Engineering

Bellingham, WA

Providing civil engineering and land surveying since 1967.

WebsitePhone4 offices12 projects1 leadersFounded 1967Updated Jun 2026

Project: Moses Lake Wastewater Treatment Plants

Service: Civil EngineeringService: Engineering DesignService: Engineering ReportsIndustry: Water SupplyIndustry: WastewaterType: Civil Engineering+28 more