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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ACT Engineers, Inc.

Robbinsville, NJ

Civil, Coastal, and Environmental Engineering and Consulting Practice

WebsitePhone3 offices5 projects8 leaders6 credentialsFounded 1991

Project: Arney's Mount West Trail

Service: Civil/Site EngineeringService: Coastal EngineeringService: Flooding and ResiliencyIndustry: GovernmentIndustry: Land DevelopmentType: Civil Engineering+28 more

ADDX Corporation

Alexandria, VA

Tenacious by Nature

WebsitePhone1 officeUpdated Jun 2026

Service detail: Engineering Readiness and Lifecycle Support

Service: Engineering Readiness and Lifecycle SupportService: Digital Engineering LaunchpadService: Engineering Readiness ReviewsIndustry: DefenseIndustry: GovernmentType: Defense Engineering+23 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

Columbia Telecommunications Corporation

Bethesda, MD

Closing the digital divide

WebsitePhone1 office1 projectsUpdated Jun 2026

Project: Oregon Statewide Broadband Expansion Partnership

Service: Network Engineering & DesignService: High-Level Network DesignService: Detailed Outside Plant (OSP) EngineeringIndustry: TelecommunicationsIndustry: GovernmentType: Telecom / RF Engineering+26 more

Compendium Federal Technology, LLC

Lexington Park, MD

Optimizing Operational and Engineering Models with Dynamic Visualizations for Today's Warfighter

WebsitePhone2 offices5 leaders7 credentials2 publicationsFounded 2010

Service detail: Model-Based Systems Engineering (MBSE)

Service: Model-Based Systems Engineering (MBSE)Service: Mission EngineeringService: Communications and Network AnalysisIndustry: DefenseIndustry: FederalType: Defense Engineering+8 more

Dominion Due Diligence Group

Midlothian, VA

Navigating pathways to affordable, available, and resilient housing through expert environmental, engineering, and energy due diligence.

WebsitePhone3 offices2 projects11 leaders1 credentialsFounded 1994

Project: Transforming Affordable Housing in Virginia: A RAD/LIHTC Renovation

Service: Environmental Due Diligence & ComplianceService: Phase I & II Environmental Site AssessmentsService: HEROS Environmental ReviewsIndustry: Affordable HousingIndustry: Multifamily ResidentialType: Environmental Engineering+31 more

GreenGen (Green Generation Solutions, LLC)

Washington, DC

Greener Buildings. Greater Profits.

Website1 office4 projects8 leaders7 credentials6 publicationsFounded 2011

Project: EQT Real Estate BREEAM Certification

Service: Sustainability StrategyService: Regulatory Compliance AdvisoryService: Net Zero Pathway DevelopmentIndustry: CommercialIndustry: ResidentialType: Environmental Engineering+31 more

Inch and Meter, PC

Philadelphia, PA

Environmental Consulting and Engineering

WebsitePhone3 offices4 leadersFounded 2019Updated Jun 2026

Service detail: Environmental Planning

Service: Environmental PlanningService: Environmental Review (NEPA, state, and local)Service: Environmental Impact AssessmentIndustry: Power GenerationIndustry: TransportationType: Environmental Engineering+29 more

M Technical Services, LLC

McLean, VA

Developing Innovative Solutions

WebsitePhone1 office1 leadersUpdated Jun 2026

Service detail: Systems Engineering and Integration

Service: Systems Engineering and IntegrationService: Provides Comprehensive Technical DesignService: AlignmentIndustry: DefenseIndustry: FederalType: Defense Engineering+21 more

MNS Engineers Inc

Stronger by Design.

Website1 projects3 leaders2 credentialsUpdated Jun 2026

Project: Rocky Creek Emergency Repair - Highway 1

Service: PlanningService: Strategic GuidanceService: Grant SupportIndustry: TransportationIndustry: Water SupplyType: Civil Engineering+22 more

Mazzetti

Bending the Climate Curve

Website3 projects7 leadersUpdated Jun 2026

Project: Oregon Health & Science University - Doernbecher - IMRI Addition

Service: MEP EngineeringService: Civil EngineeringService: Commissioning & RetrocommissioningIndustry: HealthcareIndustry: Life SciencesType: MEP+26 more

McCormick Taylor

Philadelphia, PA

Our work moves people. Our people move us.

Website16 offices15 projects24 leaders8 credentialsFounded 1946Updated Jun 2026

Project: Penrose Roundabout

Service: Roadway & Transportation EngineeringService: Highway DesignService: Bridge DesignIndustry: TransportationIndustry: Highways & RoadsType: Civil Engineering+44 more

Michaels Energy

Minimize Waste. Maximize Value.

Website1 projects2 leaders26 credentialsFounded 1984Updated Jun 2026

Project: Kids' Food Basket Freezer Energy Resilience

Service: Program Design & DeliveryService: Program DesignService: Program DeliveryIndustry: Electric UtilitiesIndustry: UtilitiesType: Power & Utility Engineering+38 more

Mission Outcomes

Alexandria, VA

Warfighting-focused strategy through execution

Website1 officeUpdated Jun 2026

Service detail: Acquisition Acceleration and Requirements Enablement

Service: Acquisition Acceleration and Requirements EnablementService: Agile and Resilient ContractingService: Acquisition Pathway Design and AccelerationIndustry: DefenseType: Software Engineering+31 more

Nitsch Engineering

Boston, MA

Building Better Communities With You

WebsitePhone5 offices5 projects5 leaders3 credentials3 publications

Project: Kennedy Street Green Infrastructure

Service: Civil EngineeringService: Due diligence and permitting strategyService: Site development advisory servicesIndustry: EducationIndustry: AirportsType: Civil Engineering+88 more

Osprey Engineering Group, LLC

Tampa, FL

Osprey Engineering Group, LLC is a civil engineering practice founded on principles of technical excellence and quality-driven design. It delivers a diverse range of public and private sector infrastructure projects across Florida, including roadway, drainage, utility and civil site design, safety improvements, stormwater modeling and floodplain management, and planning studies. The consultancy is FDOT prequalified and serves municipal, county, and state transportation and stormwater clients in the Tampa Bay region.

WebsitePhone1 office2 leaders3 credentialsUpdated Jun 2026

Service detail: Engineering Design

Service: Engineering DesignService: Civil Site DesignService: Transportation and Roadway EngineeringIndustry: Highways & RoadsIndustry: TransportationType: Civil Engineering+35 more

PKMM, Inc.

Las Vegas, NV

Advanced Technology Solutions for Government and Commercial Agencies.

WebsitePhone2 offices6 credentialsFounded 1988Updated Jun 2026

Service detail: Wire Harness and Cable Manufacturing

Service: Wire Harness and Cable ManufacturingService: Custom cable and harness assembly for aerospace and defenseService: High-reliability testing and quality assuranceIndustry: DefenseIndustry: AerospaceType: Defense Engineering+80 more

Pennoni

Philadelphia, PA

Partners for What's Possible

Website1 office5 projects6 leaders6 credentials2 publicationsFounded 1966

Project: I-95 Central Access Philadelphia (CAP)

Service: Civil/SiteService: Site Planning & Land DevelopmentService: Permitting & EntitlementIndustry: CommercialIndustry: RetailType: Civil Engineering+136 more

Planet Defense LLC

Fairfax, VA

Digital transformation, cybersecurity, and smart city solutions for government and commercial clients worldwide.

WebsitePhone1 office4 projects1 leadersUpdated Jun 2026

Project: Virginia Smart Community Testbed

Service: CybersecurityService: Risk and Vulnerability AssessmentsService: Industrial Control Systems SecurityIndustry: FederalIndustry: GovernmentType: Software Engineering+67 more

R.E.M. Risk Consultants, LLC

Dallas, TX

Providing Business Continuity and Resiliency Consulting Services

Website3 offices3 projects6 leaders7 publicationsUpdated Jun 2026

Project: Global Semiconductor Risk-Based Process Safety Assessment

Service: Business Continuity & ResiliencyService: Business Continuity PlanningService: Resilience ConsultingIndustry: Oil & GasIndustry: PetrochemicalType: Process Safety Engineering+41 more

RSI

Oak Ridge, TN

Legacy Redefined

Website1 office1 projects10 leadersFounded 1996Updated Jun 2026

Project: Aerial Site Condition Surveys

Service: Asset ManagementService: Real and Personal Property ManagementService: Security and Facility ManagementIndustry: Environmental & RemediationIndustry: NuclearType: Environmental Engineering+27 more

SNA Partners, LLC

Specialized advisory and strategic solutions for flood risk mapping and federal resilience programs

Website3 leadersUpdated Jun 2026

Service detail: Flood Hazard Consulting

Service: Flood Hazard ConsultingService: Policy Analysis and InterpretationService: Flood Study SupportIndustry: GovernmentIndustry: Water ResourcesType: Environmental Engineering+8 more

SRF Consulting Group, Inc.

Minneapolis, MN

Forward thinking. Consensus driven. People focused.

Website8 offices6 projects8 leaders1 publicationsFounded 1961Size Estimate: 200-500 employees

Project: METRO Green Line LRT Extension, West Segment

Service: Bridges and StructuresService: Bridge design and rehabilitationService: Structural inspectionIndustry: GovernmentIndustry: FederalType: Civil Engineering+56 more

STV Group, Inc.

New York, NY

Making Communities Better

Website1 office11 projects3 leaders1 credentials3 publicationsSize Estimate: 1,000+ employees

Project: Second Avenue Subway Phase II

Service: AdvisoryService: Digital AdvisoryService: Economic AnalysisIndustry: RailIndustry: TransitType: Architecture & Engineering+91 more