Public engineering firm directory

Find engineering consulting firms by capability and location.

Search engineering firm profiles built for buyers who need a shortlist, not a sales pitch.

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A-Tech Consulting, Inc.

Orange, CA

Creating A Safer Tomorrow, Today

WebsitePhone4 offices7 leaders8 credentialsFounded 2002Updated Jun 2026

Service detail: Industrial Hygiene

Service: Industrial HygieneService: Asbestos Survey and ConsultingService: Lead-Based Paint AssessmentIndustry: Environmental & RemediationIndustry: CommercialType: Environmental Engineering+21 more

AFORGE LLC

Lorton, VA

Accelerating the Speed of Knowledge to Support National Security

WebsitePhone3 offices6 credentialsSize Estimate: 1-24 employeesUpdated Jun 2026

Service detail: Strategy, Advisory, & Consulting

Service: Strategy, Advisory, & ConsultingService: Strategic & Operational PlanningService: Program Planning, Budgeting, and Execution (PPBE)Industry: DefenseIndustry: Intelligence & National SecurityType: Defense Engineering+28 more

ARGO Systems, LLC

Baltimore, MD

Innovative Construction Solutions

WebsitePhone6 offices1 credentialsFounded 2004Size Estimate: 50-100 employeesUpdated Jun 2026

Service detail: Program and Project Management

Service: Program and Project ManagementService: Project Planning and SchedulingService: Budget and Cost ControlIndustry: GovernmentIndustry: DefenseType: Electrical Engineering+26 more

ATALA ECR, Inc.

El Cajon, CA

Staffing - Construction - Remediation

WebsitePhone1 office1 credentialsFounded 2013Updated Jun 2026

Service detail: Project Staffing

Service: Project StaffingService: Construction SuperintendentsService: Site Safety and Health OfficersIndustry: FederalIndustry: DefenseType: Environmental Engineering+24 more

AVH Technology Partners

Boston, MA

Your Partners in Technology.

WebsitePhone3 offices8 leaders2 credentialsFounded 2003Updated Jun 2026

Service detail: Audiovisual Strategy

Service: Audiovisual StrategyService: Return-to-Work StrategiesService: Global StandardizationIndustry: CommercialIndustry: PharmaceuticalType: Telecom / RF Engineering+14 more

Adley Services, LLC

Lafayette, LA

Onshore or offshore. Upstream, midstream, or downstream.

WebsitePhone1 office4 leadersSize Estimate: 10-50 employeesUpdated Jun 2026

Service detail: Facilities Engineering and Design

Service: Facilities Engineering and DesignService: Offshore and Onshore Facilities DesignService: Industrial and Refining Facility EngineeringIndustry: Oil & GasIndustry: PetrochemicalType: Process Safety Engineering+27 more

Allied Engineering Design Inc

New Milford, NJ

Design Solution for Everyone

WebsitePhone1 office1 leadersFounded 1993Updated Jun 2026

Service detail: Structural Engineering

Service: Structural EngineeringService: Commercial Structural DesignService: Industrial Structural DesignIndustry: CommercialIndustry: IndustrialType: Civil Engineering+20 more

Ammonite Resources

Houston, TX

Ammonite Resources provides geotechnical and economic advisory services for the petroleum and mineral industries worldwide. Established in 1982, it assists clients with investment due diligence, strategic planning, international contract negotiations, corporate finance, and acquisitions and divestitures. It is headquartered in Connecticut with a network of associate offices across the United States, Canada, and the United Kingdom.

Website9 offices25 leadersFounded 1982Updated Jun 2026

Service detail: Investment Due Diligence

Service: Investment Due DiligenceService: First-Pass Opportunity ReviewsService: Joint Venture Evaluation and RepresentationIndustry: Oil & GasIndustry: MiningType: Geotechnical Engineering+19 more

Aries Aero Systems LLC

Aerospace Product Certification Consultants

WebsiteUpdated Jun 2026

Service detail: FAA Certification and DER Services

Service: FAA Certification and DER ServicesService: Certification Plan DevelopmentService: FAA Liaison ServicesIndustry: AerospaceIndustry: AviationType: Aerospace Engineering+26 more

Armison Tech, Inc.

Stone Ridge, VA

Cyber Security Consulting

WebsitePhone1 officeFounded 2012Updated Jun 2026

Service detail: Cybersecurity and Network Engineering

Service: Cybersecurity and Network EngineeringService: Penetration TestingService: Vulnerability AssessmentIndustry: SoftwareIndustry: Intelligence & National SecurityType: Software Engineering+25 more

Asplundh Engineering Services, LLC

Horsham, PA

The name you trust for power generation, transmission and distribution infrastructure engineering services

Website1 office4 projectsUpdated Jun 2026

Project: Eversource Utilities Distribution Services

Service: Distribution EngineeringService: Greenfield Distribution DesignService: System Investigation and NESC ComplianceIndustry: Electric UtilitiesIndustry: Power Transmission & DistributionType: Power & Utility Engineering+30 more

Avaabi Consulting Ltd

Atlanta, GA

Quality that sets the Standard

Website1 office1 leaders5 credentialsFounded 2023Updated Jun 2026

Service detail: Geotechnical Engineering

Service: Geotechnical EngineeringService: Soil Survey StudiesService: Bridge Foundation InvestigationsIndustry: Highways & RoadsIndustry: BridgesType: Geotechnical Engineering+33 more

Brandes Associates, Inc.

Lone Tree, CO

Breadth. Agility. Innovation.

WebsitePhone2 officesFounded 1990Updated Jun 2026

Service detail: Agile Software Development

Service: Agile Software DevelopmentService: Agile Release Train IntegrationService: Microservices Architecture & OrchestrationIndustry: GovernmentIndustry: DefenseType: Defense Engineering+27 more

C S Engineering, Inc.

Knoxville, TN

Providing quality services through engineering excellence.

Website1 office7 leadersFounded 1992Updated Jun 2026

Service detail: Nuclear Engineering

Service: Nuclear EngineeringService: Nuclear SafetyService: Multidiscipline AdvisoryIndustry: ChemicalsIndustry: FederalType: Process Safety Engineering+10 more

CLAD Consulting, Inc.

San Luis Obispo, CA

Engineering Services Horsepower

WebsitePhone1 office4 projects2 leaders2 credentialsSize Estimate: 1-25 employees

Project: 4.5 MW Solar Farm

Service: Engineering ConsultingService: Preconstruction SupportService: Estimate ReviewIndustry: GovernmentIndustry: SolarType: Civil Engineering+30 more

CMM Inc.

Hudson, OH

Premier Engineering Design, Construction Support, and Maintenance Services

WebsitePhone1 office8 leadersFounded 1998Updated Jun 2026

Service detail: Construction Management

Service: Construction ManagementService: Peer Review and DesignService: Constructability ReviewIndustry: IndustrialIndustry: CommercialType: Civil Engineering+65 more

California Engineering Company Inc

Yuba City, CA

Designers, Engineers, and Surveyors

WebsitePhone2 offices6 projects1 leaders4 credentialsFounded 1953

Project: Samoa Town Infrastructure Development

Service: Civil EngineeringService: Municipal InfrastructureService: Water, Wastewater, & Storm Drain SystemsIndustry: GovernmentIndustry: InfrastructureType: Civil Engineering+23 more

Calvin, Giordano & Associates, Inc.

Fort Lauderdale, FL

Empowering Florida Communities to Thrive

WebsitePhone1 office6 projectsSize Estimate: 10-49 employeesUpdated Jun 2026

Project: Planning and Zoning - Hillsboro Beach, FL

Service: Building Department ServicesService: Full-Service Building Department ManagementService: Plan ReviewIndustry: GovernmentIndustry: TransportationType: Civil Engineering+34 more

Campos EPC, LLC

Denver, CO

The Leader In Energy Infrastructure

WebsitePhone20 offices1 projects11 leaders3 publicationsFounded 2005

Project: 350MW Data Center Power Generation & Substation Facility

Service: EngineeringService: Pipeline EngineeringService: Transmission And Midstream Pipeline DesignIndustry: Oil & GasIndustry: UtilitiesType: EPC+51 more

Citrine LLC

Lakewood, CO

Citrine LLC is a professional engineering and commissioning practice based in Lakewood, Colorado, with an additional office in Grand Junction. It provides engineering design, commissioning, construction period services, and consulting services for commercial and government clients. Its technical expertise spans building design, power generation, campus infrastructure, arc flash analysis, fire protection, water treatment, and life-safety systems.

WebsitePhone2 offices4 projects3 leaders4 credentialsUpdated Jun 2026

Project: Little Elm Creek Restoration Design

Service: Engineering DesignService: Detailed DesignService: Feasibility StudiesIndustry: CommercialIndustry: GovernmentType: MEP+19 more

DLZ Corporation

Columbus, OH

Innovative Ideas | Exceptional Design | Unmatched Client Service

WebsitePhone1 office9 projects3 leaders5 credentialsSize Estimate: 500+ employees

Project: SR 161 at Maple Canyon Avenue

Service: Transportation EngineeringService: Interchange and Highway DesignService: Bridge Design and RestorationIndustry: Highways & RoadsIndustry: TransportationType: Architecture & Engineering+73 more

Engineered Systems & Services, LLC

Suwanee, GA

Engineering For A Better World

WebsitePhone1 office4 projects1 leaders1 credentialsFounded 2008

Project: Fort Moore Cultural Resources Management

Service: Building Mechanical EngineeringService: HVAC system design and upgradesService: Dehumidification system designIndustry: CommercialIndustry: WastewaterType: MEP+32 more

GWES, LLC

Roswell, GA

Smart Infrastructure Engineered for Lasting Community Impact

WebsitePhone4 offices10 projects10 leaders4 credentialsFounded 2010

Project: Northwest Service Area Water and Sewer Expansion

Service: Civil EngineeringService: Wastewater Collection and TreatmentService: Water Treatment and DistributionIndustry: GovernmentIndustry: Water SupplyType: Civil Engineering+28 more

GaN Corporation

Huntsville, AL

Innovate with Purpose

Website2 offices1 leadersUpdated Jun 2026

Service detail: Training, Test & Evaluation

Service: Training, Test & EvaluationService: T&E Capability DevelopmentService: Systems Engineering PracticesIndustry: DefenseIndustry: FederalType: Defense Engineering+51 more