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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AXIS Engineering Group

Rochester, NH

Future-Proof Your Network With Fiber

WebsitePhone1 officeUpdated Jun 2026

Service detail: Fiber Optic Engineering & Civil Planning

Service: Fiber Optic Engineering & Civil PlanningService: Civil Plans & Strand MapsService: Permit Drawings & Regulatory ComplianceIndustry: TelecommunicationsType: Telecom / RF Engineering+10 more

Advanced Automation LLC

Dover, NH

New England automation solutions and custom machinery

WebsitePhone1 office6 credentialsUpdated Jun 2026

Service detail: Automation Systems Integration

Service: Automation Systems IntegrationService: Robotic Machine TendingService: Robotic Machining SystemsIndustry: ManufacturingIndustry: DefenseType: Automation & Controls+23 more

Allen & Major Associates, Inc.

Woburn, MA

Civil Engineers, Land Surveyors, Environmental Consultants & Landscape Architects

WebsitePhone3 offices11 projects1 credentialsUpdated Jun 2026

Project: Broadstone's The 305 Apartments

Service: Civil EngineeringService: Construction ConsultationService: Due Diligence & Feasibility StudiesIndustry: CommercialIndustry: IndustrialType: Civil Engineering+49 more

Altus Engineering

Portsmouth, NH

Altus Engineering is a civil, site planning, and environmental engineering firm established in 1995 and based in Portsmouth, New Hampshire. Altus provides innovative and cost-effective solutions for site, building, environmental, and utility projects, focusing primarily on New Hampshire and southern Maine. The practice serves residential, commercial, municipal, institutional, and industrial clients, tailoring designs to client needs while ensuring regulatory compliance and aesthetic fit with the surrounding environment.

WebsitePhone1 officeFounded 1995Updated Jun 2026

Service detail: Civil & Site Engineering

Service: Civil & Site EngineeringService: Environmental EngineeringService: Utility DesignIndustry: ResidentialIndustry: CommercialType: Civil Engineering+3 more

Annette Dey Engineering LLC

Walpole, NH

Structural Engineering Services

WebsitePhone1 office1 leadersFounded 2007Size Estimate: 1 employeesUpdated Jun 2026

Service detail: Structural Design

Service: Structural DesignService: Timber and Wood Framing DesignService: Structural AnalysisIndustry: ResidentialIndustry: Historic PreservationType: Structural Engineering+4 more

Appledore Marine Engineering, LLC

Portsmouth, NH

Specializing in waterfront engineering

WebsitePhone1 office7 projects9 leadersUpdated Jun 2026

Project: Dry Dock 1 Super Flood Basin

Service: Engineer-DiversService: InspectionsService: Above-Water and Underwater Facility InspectionsIndustry: FederalIndustry: DefenseType: Marine Engineering+15 more

ArgenTech Solutions, Inc.

Newmarket, NH

ArgenTech Solutions is a leading integrator and service provider of Uncrewed Aerial Systems (UAS) for military, civil, and commercial initiatives. Founded in 2011, it provides UAS system integration, flight operations, maintenance, and training services primarily to the U.S. Department of Defense and other government and commercial customers.

WebsitePhone1 officeFounded 2011Updated Jun 2026

Service detail: UAS System Integration

Service: UAS System IntegrationService: Flight OperationsService: UAS MaintenanceIndustry: DefenseIndustry: GovernmentType: Aviation Engineering+8 more

Aries Engineering, LLC

Concord, NH

Innovating Environmental Solutions, Engineering a Better Tomorrow

WebsitePhone1 office3 projects6 leadersUpdated Jun 2026

Project: Engineering Solutions for Adaptive Reuse: Investigation to Approval

Service: Geotechnical EngineeringService: Geotechnical DesignService: Foundation EvaluationsIndustry: Environmental & RemediationIndustry: Water ResourcesType: Geotechnical Engineering+43 more

BSC Group

Boston, MA

Shaping Our Communities Together

WebsitePhone7 offices124 leadersFounded 1965Updated Jun 2026

Service detail: Planning

Service: PlanningService: Civil EngineeringService: Transportation EngineeringIndustry: BridgesIndustry: Environmental & RemediationType: Civil Engineering+33 more

Bedford Design Consultants

Manchester, NH

Your Path to Permits

WebsitePhone1 office5 projects1 leadersFounded 1987Updated Jun 2026

Project: 264 S. River Road

Service: Land SurveyingService: SubdivisionsService: Lot Line AdjustmentsIndustry: ResidentialIndustry: CommercialType: Civil Engineering+39 more

Brierley Associates Corporation

Englewood, CO

Creating Space Underground

WebsitePhone20 offices4 projects6 leaders11 credentialsUpdated Jun 2026

Project: Champlain Hudson Power Express Trenchless Crossings

Service: Tunneling EngineeringService: Trenchless EngineeringService: Horizontal Directional Drilling (HDD)Industry: Water SupplyIndustry: WastewaterType: Geotechnical Engineering+20 more

CMA Engineers

Portsmouth, NH

Pursue Excellence

WebsitePhone3 offices5 projects9 leaders4 credentialsUpdated Jun 2026

Project: AVRRDD Mt. Carberry Landfill Leachate Siphon

Service: Civil Engineering & TransportationService: Civil Infrastructure PlanningService: Roadway and Highway DesignIndustry: Waste ManagementIndustry: GeothermalType: Civil Engineering+35 more

CSI Engineering

Portsmouth, NH

CSI Engineering is an MEP/FP engineering design practice based in Portsmouth, New Hampshire. Founded in 1996, CSI Engineering began by supporting general and mechanical contractors with coordination drawings, as-built drawings, and design-build projects. In 2007, CSI Engineering expanded into full MEP/FP engineering services for architects, contractors, developers, municipalities, and the military. The three principal engineers are involved directly in every project, bringing construction-background perspective to building systems design. CSI Engineering's primary service area is New England, with completed projects extending to other US states and internationally.

WebsitePhone1 office3 leadersFounded 1996Updated Jun 2026

Service detail: HVAC Design

Service: HVAC DesignService: New construction systemsService: Existing system renovationsIndustry: EducationIndustry: HealthcareType: MEP+27 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

Cardinal Surveying & Land Planning

Sullivan, NH

Cardinal Surveying & Land Planning is a licensed land surveying and design firm based in Sullivan, New Hampshire, serving southwestern NH. Founded in 2009 by Wendy Pelletier, Cardinal has a staff of four with over 25 years of industry experience each, including a Licensed Land Surveyor, a septic designer, a licensed wetland scientist, and a Certified Surveyor in Training.

WebsitePhone1 office1 leaders3 credentialsFounded 2009Updated Jun 2026

Service detail: Boundary Surveys

Service: Boundary SurveysService: Monument recovery and lot line surveysService: Pre-purchase boundary inspectionsIndustry: Land DevelopmentIndustry: ResidentialType: Land Surveying+16 more

Celtrics Engineering

Exeter, NH

From Concept to Creation

WebsitePhone2 officesUpdated Jun 2026

Service detail: MEP Engineering

Service: MEP EngineeringService: Mechanical ServicesService: Electrical EngineeringIndustry: HealthcareIndustry: EducationType: MEP+18 more

Civilworks New England

Dover, NH

Civilworks New England is a civil engineering firm headquartered in Dover, NH, providing consulting services to private developers, corporate clients, municipalities, architects, engineers, and contractors since 1984. Civilworks specializes in civil site design, coastal and waterfront engineering, and land surveying, and is licensed in New Hampshire, Maine, and Massachusetts with affiliated service coverage in Connecticut and Vermont.

WebsitePhone2 offices3 leaders2 credentialsFounded 1984Updated Jun 2026

Service detail: Civil Site Design

Service: Civil Site DesignService: Residential and Commercial Subdivision DesignService: Utility and Municipal DesignIndustry: Land DevelopmentIndustry: ResidentialType: Civil Engineering+43 more

Continental Tide Defense Systems, Inc.

Wyomissing, PA

Continental Tide Defense Systems, Inc. (Continental Tide) provides programmatic, engineering, and technical services to the U.S. Navy, U.S. Coast Guard, Military Sealift Command, and other DoD organizations. Headquartered in Wyomissing, Pennsylvania, with offices near major naval installations in Virginia, California, Pennsylvania, Connecticut, and New Hampshire, it supports naval fleet operations through shipboard systems maintenance, modernization, engineering project delivery, and quality assurance management.

WebsitePhone6 offices8 leaders3 credentialsUpdated Jun 2026

Service detail: Maintenance & Modernization

Service: Maintenance & ModernizationService: Weapons & Combat SystemsService: Navigation, Bridge & Ship Control SystemsIndustry: DefenseIndustry: GovernmentType: Defense Engineering+13 more

Copia LLC

Goshen, NH

Consultants in Optical Science

WebsitePhone1 office1 leadersUpdated Jun 2026

Service detail: Laboratory Assessment and Characterization Services

Service: Laboratory Assessment and Characterization ServicesService: Facility and Process AssessmentService: Spectroradiometry and Colorimetry SupportIndustry: ElectronicsIndustry: TelecommunicationsType: Materials Testing+11 more

Cx Associates, Inc.

Burlington, VT

New & Existing Buildings, Energy Management, and Efficiency Programs

WebsitePhone3 officesFounded 1994Updated Jun 2026

Service detail: Design Phase Services

Service: Design Phase ServicesService: Owner's Project Requirements (OPR) developmentService: Energy modelingIndustry: HealthcareIndustry: EducationType: MEP+24 more

Denoya Structural Engineering, LLC

Bedford, NH

Residential and Commercial Structural Engineering Consulting

WebsitePhone1 office1 leaders1 credentialsFounded 2024Updated Jun 2026

Service detail: Custom Structural Design

Service: Custom Structural DesignService: Traditional and High-End Single Family HomesService: Low-Rise Residential and Commercial BuildingsIndustry: ResidentialIndustry: CommercialType: Structural Engineering+5 more

DiBernardo Associates

North Walpole, NH

Generations of Surveying Expertise

WebsitePhone1 office1 leaders3 credentialsFounded 1967Updated Jun 2026

Service detail: Boundary Surveys

Service: Boundary SurveysService: Lot SurveyService: Boundary Survey (Metes and Bounds)Industry: Land DevelopmentIndustry: ResidentialType: Land Surveying+4 more

Doucet Survey Inc.

Newmarket, NH

Private & Public Land Surveying With Integrity

WebsitePhone4 officesUpdated Jun 2026

Service detail: Boundary Surveying

Service: Boundary SurveyingService: MappingService: High-definition laser scanningIndustry: Land DevelopmentIndustry: GovernmentType: Land Surveying+3 more

DuBois & King

Randolph, VT

DuBois & King is a multidisciplinary professional consulting practice providing planning, engineering, survey, permitting, and environmental services since 1962. Its technical disciplines span civil, structural, environmental, mechanical, and electrical engineering, surveying, and landscape architecture. D&K serves federal and state agencies, municipalities, healthcare and education facilities, industrial and commercial buildings, housing developments, and energy sector clients. Operating as a 100 percent entity, it focuses on delivering collaborative, sustainable, and resilient solutions for municipal and regional infrastructure across New England, New York, and the Southwest.

WebsitePhone12 offices5 projects3 leaders11 credentialsFounded 1962

Project: Glencliff Micro-Hydro

Service: PlanningService: Transportation EngineeringService: Bicycle and Pedestrian InfrastructureIndustry: TransportationIndustry: Highways & RoadsType: Civil Engineering+36 more